Top 100 Quantum Computing Companies of 2025 (2025)

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26 Mar 2025, 6:09 am

Quantum computing is transforming industries by solving complex problems beyond the capabilities of classical computers. From cryptography and material science to optimization and artificial intelligence, quantum technology is pushing the boundaries of computation. As the field progresses, key players are leading innovation, developing scalable quantum hardware, software, and applications that drive real-world impact.

This list of the top quantum computing companies for 2025 spans various sectors, including quantum hardware, quantum software, cybersecurity, and quantum-enhanced AI. These companies are revolutionizing finance, healthcare, logistics, and energy industries by harnessing the power of quantum mechanics.

This article by Analytics Insight highlights the industry leaders shaping the future of quantum computing, showcasing their contributions, breakthroughs, and influence. Whether it’s advancing qubit technology, improving error correction, or developing quantum algorithms, these companies are at the forefront of the quantum revolution in 2025.

Headquarters: Armonk, New York, United States

Founded in: 1911

Key offerings: IBM Quantum System Two, Qiskit SDK (Open-Source Quantum Development Toolkit), Qiskit Runtime (Cloud-Based Quantum Computing Service), Modular and Extensible Quantum Processors (Condor, Heron), IBM Quantum Safe (Post-Quantum Cryptography Solutions), IBM Quantum Network (Global Collaboration Community) and Quantum-Centric Supercomputing Architecture

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IBM is a tech company serving the world on hybrid cloud, AI, IT services, and quantum computing. The company innovates advanced solutions such as IBM Watson and Quantum System Two with world-leading technology across multiple industries. IBM’s advancements in quantum computing, including 100+ qubit systems and error mitigation techniques, position it as a trailblazer in solving complex computational challenges.

Headquarters: Santa Barbara, California, United States

Founded in: 2012

Key offerings: Development of quantum processors like Sycamore, Quantum Virtual Machine (QVM), Open-source tools (for quantum simulations), Quantum machine learning models, Cloud-based quantum computing platform, and Chip fabrication.

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Google Quantum AI develops superconducting quantum processors and algorithms for fields such as chemistry, materials science, and machine learning. It focuses on fault-tolerant quantum computing and offers an open-source platform for experimentation. By advancing quantum error correction and achieving milestones such as quantum supremacy, it aims to revolutionize industries through breakthroughs in sustainability, drug discovery, and artificial intelligence.

Headquarters: Redmond, Washington, United States

Founded in: 2019

Key offerings: Quantum Hardware Integration, Quantum Programming Language, Quantum Development Kit, Quantum Simulators, Hybrid Computing, Azure Quantum Elements, and Cloud-Based Platform

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Microsoft Azure Quantum is a cloud-based platform offering quantum hardware, software, and tools for solving complex problems. It integrates quantum capabilities with classical computing and AI, supporting diverse hardware architectures like IonQ and Quantinuum. With innovations like Q# programming and logical qubits, Azure Quantum accelerates advancements in cryptography, materials science, and artificial intelligence, enabling researchers and enterprises to tackle challenges beyond the reach of classical systems.

Headquarters: Seattle, Washington, United States

Founded in: 2019

Key offerings: Fully Managed Quantum Computing Service, Access to Quantum Hardware (D-Wave, IonQ, Rigetti), Quantum Algorithm Development Tools, Hybrid Quantum-Classical Workflows, Circuit Simulators, and AWS Cloud Integration.

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Amazon Braket is a fully managed AWS service enabling researchers and developers to design, test, and run quantum algorithms. It offers access to diverse quantum hardware and simulators, supports hybrid workflows, and integrates seamlessly with AWS services. Braket accelerates innovation in optimization, machine learning, and scientific discovery.

Headquarters: Paris, France

Founded in: 2023

Key offerings: Qaptiva Quantum Computing Platform, Quantum Application Development, Hybrid Quantum-HPC Integration, Qubit Emulation (100+ Qubits), Tensor Network Simulators, Quantum Consulting and Training Services.

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Eviden, a business of Atos Group, is a global leader in advanced computing, quantum technologies, and digital transformation. Its flagship offering, Qaptiva, provides a comprehensive platform for quantum application development, enabling organizations to build and test real-world quantum solutions. Eviden also integrates quantum and high-performance computing (HPC) for hybrid workflows. With partnerships like IQM for superconducting quantum computers and Alice & Bob for error-resilient cat qubits, Eviden is at the forefront of advancing scalable and practical quantum computing solutions.

Headquarters: Santa Clara, California, United States

Founded in: 1968

Key offerings: Intel Quantum Simulator, Intel Quantum SDK, Tunnel Falls Silicon Spin Qubit Chip, Quantum Interconnects, and Quantum Error Correction Research

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Intel Corporation is advancing quantum computing with silicon spin qubits, leveraging its semiconductor expertise for scalability and fault tolerance. Its 12-qubit Tunnel Falls chip supports academic research, while the Intel Quantum SDK enables software development. By integrating quantum with classical systems, Intel aims to revolutionize cryptography, materials science, and artificial intelligence through scalable quantum technologies.

Headquarters: Santa Clara, California, United States

Founded in: 1993

Key offerings: DGX Quantum System (GPU-accelerated quantum-classical computing), CUDA Quantum (hybrid quantum-classical programming platform), cuQuantum (quantum circuit simulation SDK), Grace Hopper Superchip for AI and HPC, and OPX+ Quantum Control Platform.

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NVIDIA is a pioneer in hybrid quantum-classical computing, offering the DGX Quantum system that integrates the Grace Hopper Superchip with Quantum Machines' OPX+ platform for sub-microsecond latency between GPUs and QPUs. Its CUDA Quantum platform enables seamless programming across GPUs, CPUs, and QPUs, while cuQuantum accelerates quantum circuit simulations. NVIDIA collaborates with global supercomputing centers and quantum companies to advance AI, HPC, and quantum application research.

Headquarters: Paris, France

Founded in: 2020

Key Offerings: Quantum processors utilizing ultra-pure carbon nanotubes for scalable and reliable quantum computing. These processors aim to minimize qubit decoherence and improve performance.

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C12 Quantum Electronics is a Paris-based quantum computing startup specializing in developing quantum processors built with isotopically purified carbon nanotubes. This innovative material minimizes errors and enhances the scalability of quantum computers. The company serves research institutions, industry partners, and investors interested in advancing quantum technology.

Headquarters: Thames Valley Science Park, United Kingdom

Founded in: 2017

Key Offerings: Enterprise-ready quantum computing solutions, 3D architecture for superconducting circuits, and Quantum Computing-as-a-Service (QCaaS).

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Oxford Quantum Circuits is a leading quantum computing company specializing in enterprise-ready solutions. It develops advanced superconducting quantum hardware and offers quantum computing-as-a-service, catering to industries like finance and pharmaceuticals. OQC pioneers scalable quantum technology to solve complex global challenges.

Headquarters: Cambridge, United Kingdom

Founded in: 2021

Key offerings: Trapped-Ion Quantum Computers, Quantum Origin, InQuanto, TKET, Quantum Simulations, Quantum AI, Quantum NLP, Nexus Platform, and Post-Quantum Cryptography

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Quantinuum, formed by merging Cambridge Quantum and Honeywell Quantum Solutions in 2021, is a leading quantum computing company. It offers H-Series quantum computers with record-breaking quantum volume, quantum software, and cybersecurity solutions. Quantinuum drives innovation in cryptography, materials science, and AI.

Headquarters: Palo Alto, California, United States

Founded in: 2016

Key offerings: Silicon Photonic Quantum Computers, Quantum Processing Units (QPUs), Traveling Wave Parametric Amplifiers (TWPAs), Omega Photonic Chipset, Cloud-Based Quantum Computing Services, Intellectual Property Licensing, Consulting Services, and Quantum Algorithm Development

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PsiQuantum is advancing quantum computing with silicon photonic technology to build fault-tolerant, utility-scale systems with 1 million qubits. Leveraging semiconductor manufacturing and photonic qubits, it focuses on scalability and error correction. PsiQuantum targets breakthroughs in industries like healthcare, energy, and finance, with significant projects in Australia and Illinois driving global quantum innovation.

Headquarters: Boston, Massachusetts, United States

Founded in: 2018

Key offerings: Neutral Atom Quantum Computers, Aquila 256-Qubit Quantum Processor, Field-Programmable Qubit Array (FPQA) Technology, Analog Quantum Processing Mode, Hybrid Analog-Digital Quantum Computing Development, Cloud Access via Amazon Braket, On-Premises Quantum Computing Solutions, and Bloqade Software for Problem Simulation and Testing.

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QuEra Computing specializes in neutral-atom quantum computers, leveraging scalable Field-Programmable Qubit Array (FPQA) technology. Its 256-qubit Aquila processor, available on Amazon Braket, supports hybrid analog-digital computing for optimization, machine learning, and scientific research. Its innovative Bloqade software and room-temperature systems advance quantum scalability and integration with classical computing infrastructure.

Headquarters: New Jersey, United States

Founded in: 2018

Key offering: Novel algorithms and solutions using quantum and quantum-inspired computing, Complex problem-solving across industries, and Photonics-based technology for quantum computing applications.

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Quantum Computing Inc. (QCi) is an innovative photonics company offering affordable quantum machines operating at room temperature and low power. Its products include Dirac systems, quantum random number generators, and quantum authentication solutions, addressing high-performance computing, AI, cybersecurity, and remote sensing.

Headquarters: Boston, Massachusetts, United States

Founded in: 2019

Key Offering: Quantum secure communications, clustered quantum computing, distributed quantum sensing, Quantum network simulation as a service and Advanced secure networks with Post-Quantum Cryptography (PQC).

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Aliro Quantum pioneers quantum networking technologies, offering scalable and secure solutions for distributed quantum systems. By enabling the development of the quantum internet and advanced communication networks, Aliro empowers industries to harness the potential of quantum communication, enhancing security, connectivity, and computational capabilities for the next era of technological innovation.

Headquarters: Kraków, Poland

Founded in: 2016

Key Offerings: Novel quantum algorithms and implementations for optimization problems, Quantum-inspired methods for complex computations, Quantum chemistry simulations, Quantum error correction protocols, and Hardware-efficient MicroDiffusers for unstructured search.

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BEIT is a quantum computing software R&D company focused on advancing algorithmic techniques for optimization, quantum chemistry simulation, and error correction. By developing innovative quantum algorithms and resource-efficient implementations, BEIT aims to accelerate the practical applications of quantum computing. Its solutions address complex challenges in science and industry, pushing the boundaries of quantum hardware capabilities with reliability and speed.

Headquarters: Tokyo, Japan

Founded in: 2018

Key Offerings: Advanced quantum and optimization algorithms, cloud-based quantum computing services (JijZept), quantum-classical hybrid methods, and tailored solutions for logistics, energy, and manufacturing optimization.

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Jij Inc. is a quantum computing company specializing in optimization solutions for complex computational challenges across various industries. Leveraging expertise in quantum annealing and using optimization, it develops advanced software tools to enhance hardware performance and algorithm development. Jij is driving practical quantum applications globally through strategic collaborations and research partnerships.

Headquarters: Palo Alto, California, United States

Founded in: 2021

Key Offerings: Artificial intelligence and quantum (AQ) solutions, including crypto-agile security, quantum sensing, quantum simulation and optimization, and advanced tools for industries such as financial services, healthcare, telecommunications, and the public sector.

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SandboxAQ is a technology company integrating artificial intelligence and quantum computing to solve complex challenges. It uses classical computing architectures to develop AQ-powered solutions while preparing businesses for the quantum era. Through global collaborations and a multidisciplinary team, SandboxAQ advances AI-quantum applications and invests in education to drive innovation and security.

Headquarters: Tel Aviv, Israel

Founded in: 2018

Key Offerings: Quantum Orchestration Platform (QOP), advanced quantum control electronics, software for quantum computing hardware, and tailored solutions for quantum research and development.

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Quantum Machines is a quantum computing company specializing in control and orchestration solutions for quantum processors. Its Quantum Orchestration Platform enables precise and flexible quantum operations. The company advances quantum adoption across various sectors through global collaborations and industry partnerships while driving innovation and expanding its presence in key markets.

Headquarters: Austin, Texas, United States

Founded in: 2018

Key offerings: Strangeworks QS (Quantum Syndicate), Strangeworks EQ (Enterprise Quantum), Strangeworks QC (Community Quantum Computing Platform), Unified Framework for Quantum Code Execution, Support for Multiple Quantum Frameworks (Qiskit, Cirq, OpenQASM, Q#), and Cloud-Based and On-Premises Solutions.

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Strangeworks Inc. is a quantum computing software company offering platforms like Strangeworks QS, EQ, and QC to simplify quantum development. Supporting multiple frameworks and hardware providers, it provides cloud-based and on-premises solutions for application development, education, and collaboration. Strangeworks fosters innovation and aims to globally advance industries such as finance, energy, and healthcare.

Headquarters: Burnaby, British Columbia, Canada

Founded in: 1999

Key offerings: Quantum Computing Systems, Quantum Cloud Services, Application Development Tools, Professional Services, Research Collaborations, and Hybrid Solvers

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D-Wave Quantum Systems Inc. is a pioneer in quantum computing, offering annealing and gate-model quantum computers. Its key offerings include the Advantage quantum computer, Leap™ cloud platform, Ocean open-source tools, and hybrid solvers. D-Wave supports industries like AI, logistics, and finance with scalable optimization, scheduling, and complex problem-solving solutions.

Headquarters: Toronto, Canada

Founded in: 2016

Key offerings: Aurora Quantum Computer, PennyLane Software, X-Series Quantum Processors, and Quantum Cloud Platform

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Xanadu Quantum Technologies Inc. is a Canadian company pioneering photonic quantum computing. Its flagship Aurora system is the world's first scalable, modular photonic quantum computer. Xanadu also offers the PennyLane software framework and strategic partnerships to advance quantum computing capabilities across industries such as healthcare and finance.

Headquarters: Berkeley, Heinz Avenue, United States

Founded in: 2013

Key offerings: Quantum Processors, Quantum Cloud Services, Programming Tools and Quantum Chip Manufacturing and Prototyping.

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Rigetti Computing is a pioneering quantum computing company dedicated to advancing the field of quantum technology. It specializes in developing innovative solutions that bridge the gap between quantum and classical computing, focusing on applications that can transform industries such as finance, defense, and machine learning. With a strong emphasis on collaboration and innovation, Rigetti is at the forefront of shaping the future of quantum computing.

Headquarters: Hefei, Anhui, China

Founded in: 2017

Key offerings: Quantum Computers, Quantum Chips, Quantum Software (QPanda, QRunes), Quantum Control Systems, Cryogenic Equipment, and Applications in Chemistry and Finance.

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Origin Quantum is a leading Chinese quantum computing company specializing in superconducting and semiconductor quantum chips. It offers full-stack quantum solutions, including the 72-qubit "Origin Wukong" computer and software like QPanda. With a focus on industrial applications, it drives advancements in fields like finance, biomedicine, and materials science.

Headquarters: Vancouver, British Columbia, Canada

Founded in: 2012

Key Offerings: Hardware-agnostic quantum and classical platforms for optimization, simulation, and machine learning; specialized solutions for computational finance, materials science, quantum chemistry, and life sciences; platforms such as 1Qloud for optimization and QEMIST for quantum chemistry.

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1QBit is a quantum computing software company developing solutions integrating quantum and classical computing for complex industry challenges. With a hardware-agnostic approach, it collaborates with leading technology providers to advance optimization, simulation, and machine learning. 1QBit drives innovation across finance, healthcare, energy, and other sectors through industry partnerships.

Headquarters: Cambridge, United Kingdom

Founded in: 2016

Key offerings: Quantum Error Correction Stack (Deltaflow), Deltaflow.Decode ASIC Chip, Quantum Error Correction Roadmap, Energy-Efficient Quantum Solutions, and Integration with High-Performance Computing (HPC).

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Riverlane Ltd. specializes in quantum error correction, offering Deltaflow technology to fix qubit errors in real time. Its energy-efficient Deltaflow.Decode chip supports scalable quantum operations. Riverlane collaborates with HPC systems like Oak Ridge National Lab and focuses on advancing quantum computing for industries like AI, pharmaceuticals, and materials science.

Headquarters: Espoo, Finland

Founded in: 2018

Key offerings: Superconducting Quantum Computers, IQM Resonance Cloud Service, Application-Specific Quantum Co-Design, IQM Spark for Education, Quantum Processing Units (e.g., Garnet), and On-Premises Quantum Solutions.

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IQM Finland Oy is a leader in superconducting quantum computing, providing complete quantum systems that include hardware and software. The company offers quantum computers, processors, and solutions for research labs, supercomputing centers, and businesses. IQM focuses on advancing quantum computing technology, making it accessible for various applications. With offerings like quantum software and Quantum as a service, IQM accelerates quantum research and development progress.

Headquarters: San Sebastián, Spain

Founded in: 2019

Key Offerings: Singularity Platform, CompactifAI Software, Quantum and Quantum-Inspired Algorithms, AI Model Compression using Tensor Networks, Optimization and Machine Learning Solutions, and Partnerships for Integrated Quantum Applications.

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Multiverse Computing is a leading quantum AI software company applying quantum and quantum-inspired algorithms to solve complex problems across finance, energy, and manufacturing industries. Its flagship Singularity platform enables users to leverage quantum computing with standard software tools, while CompactifAI compresses large language models for efficiency.

Headquarters: Bezons, France

Founded in: 2016

Key offerings: Atos Quantum Learning Machine (QLM), Quantum Simulation Platforms, Quantum Hybridization Technologies, Quantum-Safe Cryptography, Q-Score for Quantum Performance Metrics, and Partnerships with Startups like Pasqal and IQM.

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Atos Quantum is a European leader in quantum computing, offering solutions like the Atos QLM for quantum simulation and hybrid quantum-HPC integration. It focuses on quantum-safe cryptography, algorithm development, and industrial applications in fields such as cybersecurity, energy, and finance. Atos drives innovation through collaborations and its patented Q-Score performance metric.

Headquarters: Paris, France

Founded in: 2022

Key Offerings: Quantum interconnects based on neutral-atom technology, quantum memories for scalable quantum computing, and solutions for quantum internet deployment.

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WeLinQ is a deeptech startup specializing in quantum interconnects and memory systems to overcome scalability challenges in quantum computing. By leveraging neutral-atom technology, WeLinQ enables efficient storage and synchronization of quantum information, facilitating the connection of quantum processors. Its innovations aim to scale quantum computing beyond current limitations while advancing quantum communication infrastructure for global deployment.

Headquarters: College Park, Maryland, United States

Founded in: 2015

Key offerings: Trapped-Ion Quantum Computers, IonQ Forte (35 Algorithmic Qubits), Modular Quantum Systems, Cloud Access via AWS, Azure, and Google Cloud, Quantum Networking Solutions, and Quantum Algorithm Development Tools.

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IonQ is a leader in trapped-ion quantum computing, offering high-fidelity systems like IonQ Forte and modular quantum architectures. Its quantum computers are accessible through major cloud platforms and support advanced optimization, AI, and cryptography applications. IonQ is also pioneering quantum networking and scalable multi-node systems for future quantum advantage.

Headquarters: Palaiseau, Île-de-France, France

Founded in: 2019

Key offerings: Neutral Atom Quantum Computers, Quantum Simulators, Pulser Open-Source Software, PASQAL Cloud Services, Proprietary Quantum Algorithms, and 2D/3D Atomic Array Technology.

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PASQAL specializes in neutral atom quantum computing, offering scalable quantum processors and simulators. Its Pulser software enables pulse-level programming of qubits, while PASQAL Cloud Services provide global access to its systems. PASQAL drives industrial quantum advancements in optimization, finance, and materials science with proprietary algorithms and partnerships with leading enterprises.

Headquarters: Tel Aviv, Israel

Founded in: 2020

Key offering: Quantum Algorithm Design Platform, Quantum Circuit Synthesis, Quantum Software Development Tools, and Integration with Major Quantum Hardware Providers.

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Classiq Technologies is a quantum software company simplifying quantum algorithm design with its synthesis platform. It automates the creation of complex quantum circuits, enabling developers to focus on application logic. Classiq integrates with leading quantum hardware providers to accelerate quantum computing adoption across industries like finance and materials science.

Headquarters: Sydney, New South Wales, Australia

Founded in: 2017

Key offerings: Quantum Control Software, Black Opal EdTech Platform, Quantum Sensing Solutions, Error Suppression and Correction Tools, and Quantum Infrastructure for R&D and End Users.

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Q-CTRL specializes in quantum control software to enhance quantum hardware performance by reducing errors and instability. Its Black Opal platform simplifies quantum education, while its quantum sensing division focuses on strategic innovations. Q-CTRL accelerates the development of useful quantum computers and sensors for enterprise, government, and research applications.

Headquarters: Paris, France

Founded in: 2020

Key offerings: Quantum Error Correction, Fault-Tolerant Quantum Computing, Quantum Software Solutions, and Partnerships for Quantum Innovation.

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Alice & Bob is a quantum computing company focused on developing fault-tolerant quantum systems through innovative error correction techniques. It aims to make quantum computing reliable and scalable for real-world applications, enhancing computational capabilities across industries like finance, healthcare, and AI.

Headquarters: Innsbruck, Austria

Founded in: 2017

Key offerings: Ion-Trap Quantum Computers, Cloud and On-Premises Solutions, Rack-Mounted Quantum Systems, Quantum Hardware Components, and Integrated High-Performance Computing (HPC).

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Alpine Quantum Technologies develops ion-trap quantum computers for seamless integration into conventional IT infrastructure. Its scalable systems, including rack-mounted solutions, support cloud and on-premises deployment. AQT focuses on advancing quantum computing for finance, chemistry, and logistics applications while enabling breakthroughs in research through innovative hardware and HPC integration.

Headquarters: Montreal, Quebec, Canada

Founded in: 2014

Key offerings: Superconducting Quantum Computers, Quantum Processors, Cryogenics, Control Electronics, and Snowflake Quantum Circuit Software.

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Anyon Systems develops and commercializes superconducting quantum computing platforms with a fully in-house hardware stack, including processors and cryogenics. As the first Canadian company to build universal superconducting quantum computers, it focuses on scalability and high-performance solutions for research and industrial applications.

Headquarters: Cambridge, Massachusetts, United States

Founded in: 2022

Key offerings: Fault-Tolerant Superconducting Quantum Computers, Noise-Protected Qubits, Scalable Quantum Processors, and Advanced Control Systems.

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Atlantic Quantum develops scalable superconducting quantum computers with noise-protected qubits for improved coherence and fidelity. It focuses on fault-tolerant hardware to tackle complex computational challenges. With a dual US-EU presence, Atlantic Quantum drives innovation through cutting-edge technology and global collaborations.

Headquarters: Berkeley, California

Founded in: 2017

Key offering: Application-Specific Quantum Computers, Superconducting Quantum Accelerators, Tailored Quantum Processors, Cryogenic Rubicon™ Platform, and Hybrid Superconducting/Photonic Processors.

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Bleximo specializes in application-specific quantum computing systems designed to solve high-impact problems in industries like logistics, finance, and pharmaceuticals. By co-designing algorithms and hardware, Bleximo delivers efficient superconducting quantum accelerators with reduced complexity and enhanced performance, driving advancements in scalable quantum technologies.

Headquarters: Sydney, Australia

Founded in: 2021

Key offerings: Scalable Silicon Quantum Computers, Full-Stack Quantum Hardware and Software, Cloud-Accessible Quantum Services, and CMOS-Based Manufacturing Technology.

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Diraq is a quantum computing company developing scalable quantum processors using silicon quantum dots. By leveraging existing semiconductor manufacturing techniques, Diraq aims to make quantum computers more affordable and fault-tolerant. Its innovative approach advances quantum technology, bringing practical quantum computing closer to reality with the power of silicon-based architecture.

Headquarters: Chicago, Illinois, United States

Founded in: 2017

Key offering: Helium-Based Quantum Processing Units (QPU), "Wonder Lake" QPU with 2,432 Qubits, CMOS-Compatible Fabrication, Long Coherence Times, High Qubit Connectivity, and Scalable Quantum Systems.

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EeroQ specializes in scalable quantum computing using helium-based electron qubits with long coherence times and high connectivity. Its "Wonder Lake" chip leverages CMOS manufacturing for compact, efficient designs. EeroQ focuses on solving complex computational problems in fields like cryptography, optimization, and drug discovery through innovative quantum hardware.

Headquarters: Sherbrooke, Quebec, Canada

Founded in: 2020

Key offerings: Superconducting Circuits for Quantum Processors, Error-Mitigating Qubits, and Fault-Tolerant Quantum Computing Hardware.

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Nord Quantique focuses on developing fault-tolerant quantum computing hardware by designing superconducting circuits that reduce errors at the qubit level. Leveraging partnerships and expertise within the Sherbrooke Quantum Innovation Zone, it aims to accelerate the pathway to high-performance quantum systems for industrial and research applications.

Headquarters: London, United Kingdom

Founded in: 2019

Key offerings: Full-Stack Photonic Quantum Computers, Quantum Memory Technology, ORCA PT Series Quantum Accelerators, and Quantum Software Development Kits (SDKs).

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ORCA Computing develops photonic quantum computers leveraging proprietary quantum memory and telecom components. Its systems address machine learning, optimization, and scientific challenges. With global deployments and partnerships, ORCA combines near-term applications with a roadmap toward fault-tolerant quantum computing to transform industries and advance quantum technology.

Headquarters: Begbroke, Oxfordshire, United Kingdom

Founded in: 2019

Key offerings: Trapped-Ion Quantum Computers, Noiseless Electronic Qubit Control Technology, Scalable Quantum Systems, and Industry-Specific Quantum Solutions.

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Oxford Ionics develops high-performance quantum computers using trapped-ion technology and proprietary noiseless qubit control. Its scalable systems address complex challenges in industries like pharmaceuticals, finance, and materials science. With a focus on precision and innovation, Oxford Ionics is advancing quantum computing to solve problems beyond the reach of classical supercomputers.

Headquarters: Coquitlam, British Columbia, Canada

Founded in: 2016

Key offerings: Silicon Spin Qubit Quantum Computing, Optically Linked Quantum Networking, Fault-Tolerant Quantum Platforms, and Industry-Specific Quantum Algorithms.

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Photonic Inc. develops scalable quantum computing and networking solutions using silicon spin qubits and optical links. Its technology combines telecom networking interfaces with silicon's manufacturability to address complex computational challenges. Serving governments, academia, and industries, Photonic aims to revolutionize quantum computing with innovative, fault-tolerant platforms.

Headquarters: Garching, Munich, Germany

Founded in: 2022

Key offerings: Neutral Atom Quantum Computers, Scalable Qubit Arrays, High-Precision Laser Manipulation, and Industry-Relevant Quantum Advantage Solutions.

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PlanQC builds quantum computers using neutral atoms as qubits, leveraging scalable arrays and precise laser control. Emerging from the Munich Quantum Valley, PlanQC integrates advanced technologies like atomic clocks and Rydberg gates to scale to thousands of qubits, enabling breakthroughs in quantum computing for industrial and scientific applications.

Headquarters: Barcelona, Catalonia, Spain

Founded in: 2019

Key offerings: Analog Quantum Computing (QASICs), Quantum as a Service (QaaS), Custom Quantum Chip Development, and On-Premises Quantum Deployment.

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Qilimanjaro specializes in analog quantum computing, developing application-specific quantum devices (QASICs) for industries such as logistics, finance, and energy. Its Quantum as a Service (QaaS) model provides cloud-based access to quantum platforms. With a co-design approach, it integrates hardware and algorithms to deliver practical quantum solutions for real-world applications.

Headquarters: Massy, France

Founded in: 2017

Key offerings: Photonic Quantum Computers, Quantum Simulation Platforms, High-Speed Quantum Processing, and Quantum Algorithm Development Tools.

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Quandela develops photonic quantum computers for high-speed processing and simulation. Its platforms are designed for complex computational tasks in fields like chemistry, materials science, and AI. With a focus on scalability and precision, Quandela accelerates quantum innovation through partnerships and cutting-edge photonic quantum technology.

Headquarters: Delft, Netherlands

Founded in: 2020

Key offerings: Superconducting Quantum Processors (QPUs), VIO Scaling Technology, Foundry and Packaging Services, and Quantum Amplifiers

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QuantWare develops scalable superconducting QPUs and innovative 3D chip architectures like VIO to accelerate quantum computing. It provides customizable processors and foundry services for hardware democratization and drives advancements in quantum technology through cutting-edge design and global collaborations.

Headquarters: Canberra, Australia

Founded in: 2019

Key offerings: Diamond-Based Quantum Accelerators, Room-Temperature Quantum Computing, Rack-Mounted Systems, and Quantum Software Tools.

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Quantum Brilliance develops compact, diamond-based quantum accelerators that operate at room temperature, eliminating the need for cryogenics. Its rack-mounted systems integrate seamlessly into existing IT infrastructure, enabling practical quantum computing for industries such as research, supercomputing, and advanced simulations. The company aims to make quantum computing accessible for everyday applications.

Headquarters: New Haven, Connecticut, United States

Founded in: 2015

Key offerings: Superconducting Quantum Computing Platforms, Dual-Rail Qubits with Built-In Error Detection, Scalable Modular Architectures, and High-Fidelity Algorithm Execution.

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Quantum Circuits develops full-stack quantum computing systems leveraging superconducting devices and error correction technologies. With roots in Yale's quantum labs, QCI focuses on scalable architectures to deliver robust and efficient quantum solutions for practical applications across industries like research, cryptography, and optimization.

Headquarters: Oxford, United Kingdom

Founded in: 2017

Key offerings: Silicon-Based Quantum Computing, Scalable Qubit Arrays, CMOS-Compatible Architectures, and Industry-Specific Quantum Solutions

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Quantum Motion develops scalable quantum computing architectures using silicon-based technology compatible with standard CMOS processing. Its innovative platform aims to tackle complex challenges in fields such as chemistry, medicine, and artificial intelligence. By leveraging silicon's simplicity and scalability, the company is advancing the commercialization of practical quantum computing solutions.

Headquarters: Rehovot, Israel

Founded in: 2021

Key offerings: Photonic Quantum Computers, Deterministic Photon Generation, Scalable Qubit Architectures, and Quantum Computing as a Service (QCaaS).

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Quantum Source develops scalable photonic quantum computers leveraging deterministic photon generation and entangling gates. Its compact, room-temperature systems aim to enable millions of qubits for industries like drug discovery, AI, and cybersecurity. It delivers practical quantum solutions for real-world applications.

Headquarters: Enschede, Netherlands

Founded in: 2019

Key offerings: Photonic Quantum Computers, Integrated Photonics Technology, Fabless Manufacturing, and Scalable Quantum Hardware Solutions.

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QuiX Quantum is Europe’s leading photonic quantum computing company, specializing in integrated photonics for scalable quantum hardware. With offices in the Netherlands and Germany, it delivers cutting-edge solutions for research and industry. As a fabless company, QuiX Quantum focuses on innovation in quantum photonics to advance computational capabilities.

Headquarters: Elmsford, New York, United States

Founded in: 2019

Key offerings: Digital Quantum Computing Platform, Superconductor-Based Chips, Integrated Classical-QuantumSystems, and Custom Chip Fabrication.

Website: https://www.seeqc.com

SeeQC develops scalable digital quantum computing platforms by integrating classical and quantum technologies on a chip. Leveraging its superconductor multi-layer chip foundry, the company delivers energy-efficient, cost-effective quantum solutions for industries such as pharmaceuticals, materials science, and cryptography. It focuses on bridging quantum innovation with real-world applications.

Headquarters: Sydney, Australia

Founded in: 2017

Key offerings: Silicon-Based Quantum Computers, Zero-Spin Silicon Technology, Atomic-Scale Quantum Integrated Circuits, and Commercial Quantum Solutions.

Website: https://www.sqc.com.au

Silicon Quantum Computing develops silicon-based quantum processors leveraging advanced atomic-scale technology and isotopically purified silicon. Operating from UNSW's world-class labs, it aims to deliver transformative quantum computing solutions for industries like AI, medicine, and cybersecurity. Backed by government and industry funding, SQC is driving innovation toward commercial quantum devices.

Headquarters: Shanghai, China

Founded in: 2021

Key offerings: Photonic Quantum Chips, Scientific-Grade Photonic Quantum Computers, Quantum Cloud Platforms, and Quantum Algorithm Development.

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TuringQ is China’s first photonic quantum computing company, specializing in 3D and ultra-high-speed photonic quantum chips. Leveraging technologies like lithium niobate on insulator (LNOI) and femtosecond laser direct writing, it develops scalable quantum systems. TuringQ focuses on industrializing quantum computing for research, optimization, and intelligent technology applications.

Headquarters: Brighton, England.

Founded in: 2018

Key offerings: Million-Qubit Quantum Computers, Trapped-Ion Technology, UQ Connect Interconnection System, and Scalable Quantum Modules.

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Universal Quantum develops large-scale quantum computers using trapped-ion technology and its proprietary UQ Connect system for module interconnection. Focused on achieving scalability to millions of qubits, the company aims to solve real-world problems in medicine, finance, and beyond that are currently unsolvable by classical supercomputers.

Headquarters: Vancouver, British Columbia, Canada

Founded in: 2012

Key offerings: Trapped-Ion Quantum Computing, Electronic Qubit Control, Modular Quantum Computing, Scalable Quantum Systems, Quantum Interconnect Technology

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1QBit is a quantum computing software company specializing in developing algorithms and tools designed to run on quantum computers. They focus on applications like optimization, machine learning, and simulations, creating solutions that guide quantum systems in solving complex problems, ultimately enabling users to leverage the capabilities of quantum hardware effectively.

Headquarters: Toronto, Canada

Founded in: 2018

Key offerings: Quantum Cloud Security, Privacy-Preserving Quantum Computing Solutions, and Quantum Optimization Software.

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Agnostiq specializes in developing secure and privacy-focused quantum computing software for cloud environments. Its solutions address optimization problems across industries like finance and logistics while ensuring robust data protection. Agnostiq enables enterprises to leverage quantum advancements securely and efficiently by bridging classical and quantum technologies.

Headquarters: Massachusetts, United States

Founded in: 2019

Key offerings: AliroNet™ Quantum Networking Platform, Entanglement-Based Secure Communications, Quantum Network Simulation, and Distributed Quantum Sensing.

Website: https://www.aliroquantum.com

Aliro Technologies specializes in quantum networking solutions, offering AliroNet™ to design, emulate, and deploy entanglement-based quantum networks. Its technology supports secure communications, cloud access, and quantum computer networking. Spun out of Harvard’s NarangLab, Aliro empowers industries like telecommunications and research to build scalable, secure distributed quantum systems.

Headquarters: Helsinki, Finland

Founded in: 2020

Key offerings: Quantum Algorithms for Drug Discovery, Molecular Simulations, and Error Mitigation Techniques.

Website: https://algorithmiq.fi/

Algorithmiq develops quantum algorithms to tackle complex challenges in life sciences, focusing on drug discovery and molecular simulations. Collaborating with IBM and Quantum Circuits, it pioneers error mitigation methods to enhance quantum hardware efficiency. Algorithmiq integrates AI and network science to accelerate healthcare and pharmaceutical innovation breakthroughs.

Headquarters: Tokyo, Japan

Founded in: 2018

Key offerings: Quantum Computing Software Development, Optimization Solutions for Logistics and Advertising, and Proof-of-Concept Experiments.

Website:

A Star Quantum specializes in quantum computing software, focusing on solving complex optimization problems in logistics, advertising, and other industries. Leveraging partnerships and strategic alliances, the company aims to advance quantum technology applications while contributing to societal evolution through innovative solutions and global collaborations.

Headquarters: Berkeley, California, United States

Founded in: 2018

Key offering: Gate-Based Quantum Computers, Neutral Atom Technology, Scalable Qubit Arrays, and High-Fidelity Operations.

Website:

Atom Computing builds scalable quantum computers using optically trapped neutral atoms. Its technology focuses on long coherence times, error-corrected qubits, and optimized connectivity to enable breakthroughs like optimization, materials science, and cryptography. Collaborating with Microsoft, Atom Computing is advancing quantum systems for commercial and scientific applications.

Headquarters: Buffalo, New York, United States

Founded in: 2020

Key offering: Quantum-Powered Simulation-as-a-Service (Q-SaaS), Engineering Simulation Software, and Hybrid Quantum-Classical Infrastructure.

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BosonQ Psi Private Limited (BQP) is a quantum software company specializing in quantum simulation software, computational fluid dynamics (CFD) applications, and materials science solutions. BQP also focuses on quantum algorithm development and high-performance computing (HPC) integration. The company aims to bridge the gap between quantum hardware and users, providing practical quantum software tools and platforms to accelerate innovation across various industries.

Headquarters: Singapore

Founded in: 2018

Key offerings: Quantum Software Development Tools, Classical-to-Quantum Code Compilation, and Integrated Quantum Hardware-Software Systems.

Website:

Horizon Quantum Computing develops tools that enable users to write quantum programs in familiar classical languages, removing the need for prior quantum expertise. With its proprietary software stack, it simplifies quantum application development and integrates tightly with quantum hardware. Horizon aims to democratize quantum computing for industries worldwide.

Headquarters: Karlsruhe, Germany

Founded in: 2017

Key offerings: Quantum Algorithms for Material and Molecular Simulations, Error Mitigation Techniques, and Integration with NISQ Processors.

Website:

HQS Quantum Simulations develops quantum software to predict material properties, accelerating innovation in industries like chemistry, pharmaceuticals, and materials science. By combining advanced simulations with quantum computing, HQS enables precise modeling of molecules and materials, helping clients such as Merck and BASF solve complex challenges in product development.

Headquarters: Montreal, Quebec, Canada

Founded in: 2014

Key offerings: Gate-based Quantum Computing Platforms, Hardware and Software Solutions for Quantum Electronics.

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Anyon Systems Inc. is a Canadian company developing superconducting quantum computers. The company focuses on building full-stack quantum systems, including superconducting processors and cryogenic control electronics and aims to create scalable and practical quantum computers capable of tackling complex computational problems. Anyon is working towards delivering functional quantum computing hardware.

Headquarters: Cambridge, United Kingdom

Founded in: 2020

Key offerings: Quantum-Inspired Drug Discovery, Enzyme Active Site Prediction, Quantum Simulation for Drug Design, AI-Driven Molecular Modeling, Computational Chemistry Services

Website:

Kuano Ltd specializes in quantum-inspired drug discovery, utilizing quantum algorithms and software tools to accelerate medicine development. Their offerings include enzyme active site prediction, quantum simulation for drug design, and AI-driven molecular modeling. By leveraging quantum computing and computational chemistry services, Kuano aims to design more effective, targeted drugs, enhancing the drug development process.

Headquarters: Copenhagen, Denmark

Founded in: 2022

Key offerings: Quantum and High-Performance Computing Solutions for Drug Discovery, Financial Services, and Logistics.

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Kvantify is a technology company dedicated to making High-Performance Computing (HPC) and Quantum Computing accessible to businesses. With a strong academic foundation, it develops software that enables organizations to harness advanced computing without in-house expertise, solving complex real-world challenges through innovation and a team of physics, mathematics, and cloud computing experts.

Headquarters: London, United Kingdom

Founded in: 2018

Key offerings: Quantum Algorithms and Software for Materials Science, Energy, and Optimization Problems.

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Phasecraft Limited develops cutting-edge quantum algorithms and software to accelerate breakthroughs in materials science, energy efficiency, and complex optimization challenges. As a leader in quantum computing research, the company collaborates with academic institutions and industry partners to bridge the gap between quantum theory and practical applications.

Headquarters: Durham, North Carolina, United States

Founded in: 2020

Key offerings: Quantum-Driven Drug Discovery Platform for Accelerated Molecular Design.

Website:

Polaris Quantum Biotech leverages quantum computing and AI to revolutionize drug discovery by rapidly exploring vast chemical spaces. Its proprietary Tachyon platform identifies novel molecular drugs for diseases like cancer and aging-related conditions, significantly reducing development timelines and costs. PolarisQB collaborates with biotech partners to tackle unmet medical needs globally.

Headquarters: Toronto, Ontario, Canada

Founded in: 2017

Key offerings: Computational Protein Design, AI-Driven Protein Engineering, Protein Structure Prediction, Custom Protein Design Services

Website:

ProteinQure uses computational tools and AI to design protein-based drugs, targeting diseases with limited treatment options. Their technology creates proteins that deliver drugs directly to diseased cells, enhancing treatment effectiveness and minimizing side effects. Specializing in protein structure prediction and custom protein design services, ProteinQure focuses on advancing biopharmaceutical applications and transforming drug development.

Headquarters: Palo Alto, California, United States

Founded in: 2014

Key offering: Quantum Computing Software for Machine Learning, Chemistry Simulations, and Optimization in Enterprise Applications.

Website:

QC Ware Corp. develops quantum and quantum-inspired software solutions to solve complex computational problems in finance, aerospace, and pharmaceutical industries. Collaborating with NASA and leveraging advanced algorithms, QC Ware accelerates innovation in areas such as deep learning and network analysis. It is a leader in bridging quantum technology with enterprise needs.

Headquarters: Helsinki, Finland

Founded in: 2019

Key offering: AI-Powered Quantum Algorithm Development Tools, Quantum Programming Studio, and High-Performance Simulators.

Website:

Quantastica develops software tools for quantum computing, helping researchers and developers create programs for quantum machines. They focus on streamlining the development process through quantum algorithm development, consulting, and education services. With custom quantum solutions, Quantastica bridges the gap between classical computing and the quantum future, making quantum technologies more accessible and efficient.

Headquarters: Austin, Texas

Founded in: 2021

Key offerings: Quantum-Inspired Materials Design, Generative Modeling for Materials,

Computational Materials Discovery, Custom Materials Simulation, Materials Informatics Solutions

Website:

Quantum Generative Materials (GenMat) leverages quantum computing and AI to design materials with specific properties. Specializing in quantum-inspired materials design, generative modeling, and computational materials discovery, they offer custom materials simulation and informatics solutions. GenMat aims to revolutionize industries like energy and electronics by creating innovative materials for diverse applications.

Headquarters: Paris, France

Founded in: 2020

Key offerings: Quantum-Driven Drug Discovery Platform for Accelerated Molecular Design and Simulation.

Website:

Qubit Pharmaceuticals leverages quantum computing and AI to accelerate drug discovery. By simulating molecules and their interactions with the human body, they address complex challenges in developing more effective and targeted therapies. Their platform utilizes quantum-inspired molecular modeling and high-performance computing to optimize drug design, aiming to transform the pharmaceutical industry and improve patient outcomes.

Headquarters: Tokyo, Japan

Founded in: 2018

Key offerings: Quantum Algorithms and Software for Chemistry, Drug Discovery, and Materials Science Applications.

Website:

QunaSys develops quantum software tools and algorithms to help researchers and businesses harness quantum computing for applications in materials science and drug discovery. They offer quantum chemical calculation software, algorithm development, and consulting services, aiming to make quantum computing more accessible and practical. Their goal is to bridge the gap between quantum technology and real-world applications.

Headquarters: Boulder, Colorado, United States

Founded in: 2007

Key offerings: Cold Atom Quantum Computing, Quantum Sensing, Quantum RF Systems, Quantum Positioning, Navigation, Timing (PNT), Cold Atom Technology Components

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ColdQuanta specializes in cold atom technology, developing quantum devices like quantum computers and sensors by precisely controlling atoms cooled to near absolute zero. Their technology is applied in quantum sensing, RF systems, and positioning, navigation, and timing (PNT). ColdQuanta aims to advance quantum technology for practical, real-world applications across multiple industries.

Headquarters: St. Gallen, Switzerland

Founded in: 2019

Key offering: Quantum Algorithms, Computing, and Security as a Service (QaaS).

Website:

Terra Quantum AG is a leading quantum technology company providing "Quantum as a Service" solutions across three core areas: quantum algorithms for optimization and neural networks, quantum computing with access to simulated and physical QPUs, and quantum security through secure communication and QKD solutions. It serves industries like energy, finance, and life sciences.

Headquarters: Boston, Massachusetts, United States

Founded in: 2017

Key offerings: Quantum and Generative AI Software Solutions for Industrial and Enterprise Applications.

Website:

Zapata Computing, Inc. develops quantum-enabled and generative AI software to solve complex industrial problems. Its Orquestra platform integrates classical and quantum computing for optimization, machine learning, and chemistry applications. Zapata serves the pharmaceuticals, logistics, and finance industries, leveraging cutting-edge AI techniques to deliver tailored enterprise solutions.

Headquarters: Oxford, United Kingdom

Founded in: 2021

Key offerings: AI-Driven Quantum Control Software for Qubit Optimization and Quantum Processor Automation.

Website:

QuantrolOx Ltd specializes in machine learning-based software designed to automate quantum processors' tuning, stabilization, and optimization. Its Quantum EDGE platform enhances qubit performance, maximizing uptime and reducing operational costs. A spinout from the University of Oxford, QuantrolOx, supports scaling quantum technologies for scientific and industrial applications.

Headquarters: Palo Alto, California, United States

Founded in: 2018

Key Offerings: Quantum error correction technologies, quantum chip optimization, scalable quantum operating systems, and hybrid quantum-classical computing solutions.

Website:

Turing Quantum is an innovative quantum computing company dedicated to solving scalability and error correction challenges. Advancements in quantum programming, compiling, and chipset optimization accelerate practical quantum applications across industries. Turing Quantum is focused on bridging research and real-world implementation and driving the next generation of computational breakthroughs with cutting-edge technology.

Headquarters: Singapore

Founded in: 2018

Key offering: Quantum Software Tools for Optimization, Statistical Learning, and Fault-Tolerant Quantum Algorithms.

Website:

Entropica Labs develops advanced software tools and algorithms to harness the potential of quantum computing for practical applications. Its innovations focus on optimization, statistical learning, and error correction, enabling fault-tolerant quantum computations. The company collaborates with quantum hardware providers and industries like logistics and transportation to accelerate the adoption of quantum technologies.

Headquarters: Delft, Netherlands

Founded in: 2014

Key offerings: Research and Development of Scalable Quantum Computers and Quantum Internet Technologies.

Website:

QuTech is a mission-driven research institute focused on advancing quantum computing and quantum internet. Organized into divisions for qubit research, quantum computing, and quantum communication, QuTech develops scalable prototypes and secure quantum networks. Collaborating with industry leaders like Intel and Microsoft, it pioneers breakthroughs in quantum technologies.

Headquarters: Tokyo, Japan

Founded in: 2021

Key offerings: Hybrid Quantum Computing Platform, Superconducting and Digital Annealer Technologies.

Website:

Fujitsu Quantum Computing integrates quantum and classical computing through its hybrid platform, combining superconducting quantum computers and quantum simulators. It focuses on error correction, scalable architectures, and applications in quantum chemistry, finance, and materials science. Its Digital Annealer offers quantum-inspired solutions for optimization problems in industries like logistics and healthcare.

Headquarters: ampere, Finland

Founded in: 2021

Key offerings: Cloud-based multiphysics simulations, Focus on speed and efficiency, Quantum computing integration

Website -

Quanscient is a pioneering Finnish tech company revolutionizing engineering simulations with its advanced software, Quanscient Allsolve. By leveraging cloud and quantum computing, complex simulations beyond traditional methods are accelerated. This breakthrough enables engineers to optimize designs faster, driving innovation and reducing development time across industries with high-performance computational solutions.

Headquarters: Vista, California, United States

Founded in: 2013

Key offerings: Quantum Networking Hardware and Software, Quantum Key Distribution Solutions, and Entanglement-Based Cryptography.

Website:

Qubitekk, Inc. specializes in designing and manufacturing quantum networking technologies, including entangled photon sources and state measurement systems. Its solutions enable secure quantum communication networks for critical infrastructure, such as energy grids, 5G communications, and national defense. It holds numerous patents in quantum communications.

Headquarters: Gdansk, Poland

Founded in: 2019

Key offerings: Quantum Random Number Generation (QRNG), SeQRNG Self-testing Quantum Random Number Generator, Cybersecurity Solutions

Website:

Sequre Quantum is a Chilean-Polish startup specializing in quantum technology for cybersecurity. Its flagship product, SeQRNG, is a self-testing Quantum Random Number Generator that enhances encryption, gaming, and data protection. Built on patented technology and scientific research, Sequre Quantum delivers quantum-safe solutions for secure digital communications across various industries.

Headquarters: Washington, D.C., United States

Founded in: 2014

Key offering: Quantum Software and Consulting Services for Machine Learning, Optimization, and Simulation Applications.

Website:

QxBranch provides quantum software solutions and consulting services to help organizations leverage quantum computing for practical applications. Its expertise includes quantum machine learning, optimization, and simulation, serving industries like finance, logistics, and energy. QxBranch collaborates with leading quantum hardware providers to deliver tailored quantum-enabled solutions for enterprise clients.

Headquarters: Sapphire Coast, New South Wales, Australia

Founded in: 2012

Key offerings: Quantum Random Number Generation (QRNG), Cloud-based Quantum Solutions, AI/ML Integration, Software Engineering

Website:

2pi Software specializes in quantum computing and cloud-based solutions, integrating advanced quantum technologies with secure, scalable infrastructure. It develops high-speed quantum random number generators and excels in cloud architecture, AI/ML, and quantum applications. 2pi Software delivers cutting-edge solutions for businesses across diverse industries through innovation and collaboration.

Headquarters: Paris, France

Founded in: 2019

Key offerings: Quantum Computing Software-as-a-Service (SaaS) Platform for Business Applications.

Website:

ColibrITD focuses on democratizing access to quantum computing technologies for businesses by providing a unified platform that integrates various quantum hardware. Its QUICK platform enables advanced computational solutions for industries such as healthcare, artificial intelligence, and optimization. It emphasizes energy-efficient and scalable quantum solutions.

Headquarters: Bristol, United Kingdom

Founded in: 2016

Key offerings: Quantum Key Distribution (QKD), Quantum Random Number Generation (QRNG), Chip-based Quantum Encryption Hardware

Website:

KETS Quantum Security is a pioneer in quantum-safe communications, leveraging integrated photonic technologies to create compact, cost-effective, and scalable encryption hardware. Developed from research at the University of Bristol, their solutions are designed to protect sensitive data across sectors like telecommunications, finance, defense, and energy.

Headquarters: Milan, Italy

Founded in: 2022

Key offerings: Glass-Based Quantum Photonic Chips for Quantum Computing, AI, and Secure Communication.

Website:

Ephos specializes in designing and manufacturing glass-based quantum photonic chips that enhance energy efficiency and reduce signal loss in quantum computing, AI, and secure communication systems. Unlike traditional silicon-based chips, Ephos’s technology leverages glass substrates to improve performance in advanced quantum devices.

Headquarters: Orlando, Florida, United States

Founded in: 2010

Key offering: Quantum AI, Optimization SDKs, Quantum Circuit Programming SDKs, and Integrated Quantum + AI + HPC Workflows.

Website:

Cosmica LLC is a pioneering quantum computing startup focusing on integrating quantum computing with artificial intelligence (AI) and high-performance computing (HPC). The company recently launched two entry-level SDKs for optimization and quantum circuit programming, offering free trials to users. With over five years of R&D in stealth mode, Cosmica aims to revolutionize quantum technologies through its upcoming Quantum AI venture and integrated workflows.

Headquarters: Espoo, Finland

Founded in: 2024

Key offerings: Resource-Efficient Quantum Algorithms for Optimization and Industrial Applications.

Website:

QMill is a Finnish quantum computing startup focused on developing advanced quantum algorithms for near-term quantum hardware. Targeting finance, telecommunications, energy, and logistics industries, the company aims to deliver practical quantum advantages by solving complex optimization problems. QMill leverages the LUMI supercomputer for algorithm simulation and comparison, with a mission to bridge the gap between current quantum hardware limitations and real-world industrial use cases.

Headquarters: Innsbruck, Austria

Founded in: 2020

Key offerings: Quantum Computer Blueprints and Operating System for Scalable and Programmable Quantum Computing.

Website:

ParityQC GmbH is the world’s only quantum architecture company, specializing in developing blueprints and the ParityOS operating system for highly scalable quantum computers. Its patented ParityQC Architecture introduces a paradigm shift by reducing control complexity and enabling efficient solutions for optimization problems on both NISQ devices and error-corrected quantum systems. The architecture supports all current hardware platforms, including digital and analog methods, and accelerates industry-relevant problem-solving.

Headquarters: Castelldefels, Catalonia, Spain

Founded in: 2017

Key offerings: Quantum Random Number Generators (QRNG) and Advanced Quantum Solutions for Cybersecurity and High-Performance Computing.

Website:

Quside Technologies S.L. specializes in designing and manufacturing quantum technologies to enhance secure connectivity and efficient computation. Its flagship product, an ultrafast chip-integrated Quantum Random Number Generator (QRNG), leverages patented technology based on the phase-diffusion process in semiconductor lasers. Quside's solutions cater to industries such as cybersecurity, data centers, and high-performance computing, with applications in key generation and Monte Carlo simulations.

Headquarters: Hyderabad, Telangana

Founded in: 2020

Key offering: AI-Edge Cognitive Platform, Quantum Computing Research, Consulting and Solutions

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AmberFlux is like a financial wizard harnessing the power of quantum computers. They are investigating how these advanced machines can enhance trading strategies and risk management in finance. Consider them experts in quantum finance, discovering innovative approaches to making better financial decisions.

Headquarters: London, United Kingdom

Founded in: 2016

Key Offering: Quantum-driven IoT security solutions, including QDID (hardware root-of-trust) and QuarkLink (universal IoT security platform), providing end-to-end security, device management, and cryptographic key generation for IoT ecosystems.

Website:

Crypto Quantique is a cybersecurity company harnessing quantum physics and cryptography to secure IoT ecosystems. Its technology enables unique, unforgeable identities and simplifies device management through cloud-ready solutions. Collaborating with semiconductor manufacturers and industry leaders, Crypto Quantique advances quantum-safe security while enhancing protection, scalability, and efficiency across various IoT applications.

Headquarters: Knoxville, Tennessee, USA

Founded in: 2018

Key Offering: Quantum optimization solutions for the energy sector, including micro-siting optimization for wind turbines and electric grid management to enhance efficiency, reliability, and cost-effectiveness.

Website:

Qubit Engineering is a quantum computing company optimizing energy systems through advanced algorithms. Specializing in wind farm and electric grid optimization, its quantum-enhanced software improves efficiency and reduces costs. Collaborating with industry leaders, Qubit Engineering integrates quantum computing and machine learning to drive innovation in renewable energy and power distribution.

The quantum computing landscape in 2025 is defined by rapid innovation, strategic collaborations, and groundbreaking advancements in hardware, software, and quantum algorithms. Leading companies such as IBM, Google Quantum AI, and Microsoft Azure Quantum are pushing the boundaries of computation, developing scalable quantum systems, and unlocking new possibilities in fields like artificial intelligence, cryptography, and material science.

As quantum technologies mature, industries including finance, healthcare, and logistics will increasingly integrate quantum computing to solve complex problems beyond classical computing capabilities. The continued investment in quantum error correction, hybrid computing models, and quantum-cloud integration signifies a shift toward practical, real-world applications. The top quantum computing companies of 2025 are paving the way for a future where quantum advantage becomes a transformative reality.

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