Hardware

Akhetonics - Quantum Computing Company Profile | Quantum Navigator

Akhetonics

Akhetonics develops integrated photonic quantum technologies and components for quantum computing, quantum communication, and quantum sensing applications, focusing on silicon photonic chips and quantum light sources to enable scalable photonic quantum systems for next-generation quantum information processing and networking applications.

Company Information

Key People

Kevin Füchsel (Co-founder, CEO)

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Alice & Bob - Quantum Computing Company Profile | Quantum Navigator

Alice & Bob

Alice & Bob is a pioneering French quantum computing startup that has developed a revolutionary approach to quantum error correction using ‘cat qubits’ - a breakthrough technology that significantly reduces the overhead required for fault-tolerant quantum computing. Founded in 2020 by Théau Peronnin, Raphaël Lescanne, and other researchers from École Normale Supérieure and INRIA, the company has created superconducting cat qubits that exhibit natural protection against bit-flip errors, potentially reducing the number of physical qubits needed for logical qubits by orders of magnitude. In January 2025, Alice & Bob raised €100 million in Series B funding led by Future French Champions, AVP, and Bpifrance, bringing total funding to over €130 million to accelerate their path toward the world’s first useful quantum computer by 2030. In March 2025, the company achieved a major technical breakthrough by ‘squeezing’ cat qubits, extending bit-flip error lifetimes by a factor of 160x compared to previous implementations, reaching 22 seconds at 4.1 photons with no increase in phase-flips. The company is building a $50 million quantum laboratory in Paris featuring a nanofabrication cleanroom and large-scale test facility. Alice & Bob’s cat qubit technology addresses one of quantum computing’s most critical challenges by requiring only thousands of qubits instead of millions for fault-tolerant computing, with over 110 employees working toward their roadmap of 100 logical qubits by 2030.

Alpine Quantum Technologies - Quantum Computing Company Profile | Quantum Navigator

Alpine Quantum Technologies

Alpine Quantum Technologies develops trapped ion quantum computers and quantum simulators based on research from the University of Innsbruck, offering cloud-accessible quantum systems through their AQT quantum cloud platform for research institutions and companies working on quantum algorithms, optimization problems, and quantum simulation applications in materials science and chemistry.

Company Information

  • Founded: 2018
  • Country: Austria
  • Website: https://aqt.eu
  • Categories: hardware

Key People

Rainer Blatt (Co-founder), Thomas Monz (Co-founder)

Investment Information

  • Status: private
  • Total Raised: $23.2M
  • Last Valuation: $150M

Recent Funding Rounds

  • 2022-06-29: series-a - $19M - Series A funding round
  • 2019-11-14: seed - $4.2M - Seed funding round

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Analog Devices - Quantum Computing Company Profile | Quantum Navigator

Analog Devices

Analog Devices develops quantum control electronics and precision analog components for quantum computing applications, leveraging their expertise in high-performance analog and mixed-signal integrated circuits to create specialized electronics for quantum state control, measurement, and signal processing in quantum systems, providing essential electronic components and systems that enable precise manipulation and readout of qubits in various quantum computing platforms including superconducting, trapped ion, and photonic quantum computers.

Company Information

Key People

Unknown

Anyon Systems - Quantum Computing Company Profile | Quantum Navigator

Anyon Systems

Anyon Systems specializes in quantum hardware components and integration services, providing cryogenic systems, quantum device packaging, and custom quantum hardware solutions that enable researchers and companies to build and operate quantum computing systems with focus on practical implementation and system integration.

Company Information

Key People

Unknown

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Atlantic Quantum - Quantum Computing Company Profile | Quantum Navigator

Atlantic Quantum

Atlantic Quantum is an MIT spinout founded in 2022 that developed next-generation superconducting quantum computers using fluxonium qubits, a promising alternative to transmon qubits that offers superior coherence properties and reduced sensitivity to charge noise. The company was founded by leading quantum computing researchers from MIT including Peter Gruter, Youngkyu Sung, and others who pioneered fluxonium qubit technology. Atlantic Quantum’s approach leveraged the unique properties of fluxonium qubits, which can achieve microsecond-scale coherence times and strong anharmonicity, potentially enabling more efficient quantum error correction and higher-fidelity quantum operations. In October 2025, Google Quantum AI acquired Atlantic Quantum to advance scalable quantum hardware development, integrating the company’s advanced fluxonium qubit technology into Google’s quantum computing roadmap. The acquisition represented a strategic move by Google to strengthen its quantum hardware capabilities by bringing cutting-edge academic research from MIT into commercial applications. Atlantic Quantum’s focus on advanced qubit technology positioned them to contribute significantly to Google’s pursuit of fault-tolerant quantum systems.

Bleximo - Quantum Computing Company Profile | Quantum Navigator

Bleximo

Bleximo is a Berkeley-based quantum computing startup founded in 2017 that develops application-specific quantum accelerators using superconducting qubits, pioneering a co-design methodology that tailors quantum processors, control hardware, and algorithms to solve specific high-value problems rather than building general-purpose systems, providing enhanced performance and shorter time-to-market for applications in finance, pharmaceuticals, logistics, and advanced materials through their full-stack superconducting quantum computing platform.

Company Information

Key People

Sergio Boixo (Co-founder), Vadim Smelyanskiy (Co-founder)

Broadcom - Quantum Computing Company Profile | Quantum Navigator

Broadcom

Broadcom develops quantum photonics components and integrated photonic solutions for quantum computing and quantum communication applications, leveraging their semiconductor and photonics expertise to create specialized components including quantum light sources, photonic integrated circuits, and optical components essential for photonic quantum systems, providing the foundational photonic infrastructure needed for scalable photonic quantum computing, quantum networking, and quantum sensing applications through advanced silicon photonics technology.

Company Information

Key People

Unknown

C12 - Quantum Computing Company Profile | Quantum Navigator

C12

C12 Quantum Electronics is a Paris-based quantum computing startup founded in 2020 as a spinoff from École Normale Supérieure that develops quantum processors using ultra-pure carbon nanotubes as qubits, leveraging isotopically purified 12C carbon atoms with zero nuclear spin to minimize decoherence and achieve near-ideal qubit performance, with €18 million in funding and an underground quantum fabrication facility in Paris producing quantum processors for cloud availability by 2025 and chip sales starting in 2026.

Chipiron - Quantum Computing Company Profile | Quantum Navigator

Chipiron

Chipiron develops advanced quantum chip technology and semiconductor solutions for quantum computing applications, focusing on the design and fabrication of quantum devices with improved performance characteristics and integration capabilities for next-generation quantum processors and quantum systems.

Company Information

Key People

Unknown

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Delft Circuits - Quantum Computing Company Profile | Quantum Navigator

Delft Circuits

Delft Circuits is a Dutch quantum technology company founded in 2017 as a QuTech spinout that specializes in manufacturing high-performance cryogenic quantum cables and interconnects essential for quantum computing systems, providing low-noise, high-fidelity signal transmission solutions that enable precise control and readout of qubits in dilution refrigerators, serving quantum computing companies worldwide with critical infrastructure components that maintain signal integrity at millikelvin temperatures required for superconducting quantum processors.

Diraq - Quantum Computing Company Profile | Quantum Navigator

Diraq

Diraq develops silicon quantum processors using CMOS-compatible fabrication processes to create quantum computers that leverage existing semiconductor manufacturing infrastructure, focusing on silicon-based spin qubits that can be manufactured using standard chip fabrication techniques to enable cost-effective scaling of quantum systems for practical applications.

Company Information

Key People

Andrew Dzurak (Founder), Tuomo Tanttu (Co-founder)

Investment Information

  • Status: private
  • Total Raised: $135M
  • Last Valuation: $500M

Recent Funding Rounds

  • 2024-10-15: strategic - $100M - Government and strategic funding for silicon quantum processors
  • 2024-02-20: series-a2 - $15M - Series A-2 funding round
  • 2022-05-10: series-a - $20M - Series A funding round

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Duality Quantum Photonics - Quantum Computing Company Profile | Quantum Navigator

Duality Quantum Photonics

Duality Quantum Photonics is a UK-based quantum technology company founded in 2020 that develops integrated quantum photonics circuits and components for quantum computing, quantum communications, and quantum sensing applications, specializing in silicon photonic chips that enable scalable photonic quantum systems with high integration density, providing essential building blocks for photonic quantum technologies including quantum light sources, quantum interferometers, and photonic quantum processors for researchers and companies developing quantum applications.

EeroQ - Quantum Computing Company Profile | Quantum Navigator

EeroQ

EeroQ develops innovative helium-ion quantum processors using a unique approach that employs helium ions to create qubits with potentially superior coherence properties and reduced environmental sensitivity compared to traditional quantum computing platforms, aiming to build scalable quantum systems for computational applications in optimization and simulation.

Company Information

Key People

Nicholas Farina (Co-founder, CEO), John Levy (Co-founder)

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eleQtron - Quantum Computing Company Profile | Quantum Navigator

eleQtron

eleQtron is a German quantum computing company founded in 2020 that develops MAGIC (Magnetic Quantum Information Coupling) quantum computers using novel approaches to quantum processing, focusing on creating scalable quantum systems with enhanced coherence properties and reduced environmental sensitivity, working to advance quantum computing hardware through innovative qubit designs and quantum control techniques for applications in optimization, simulation, and quantum algorithm development across various industries and research institutions.

Company Information

Key People

Menno Veldhorst (Co-founder), Lieven Vandersypen (Co-founder)

Equal1 - Quantum Computing Company Profile | Quantum Navigator

Equal1

Equal1 is an Irish quantum computing startup founded in 2017 as a University College Dublin spinoff that has developed the world’s first rack-mounted silicon quantum computer called Bell-1, using revolutionary Quantum System-on-a-Chip (QSoC) processors that integrate quantum and classical transistors on a single CMOS-compatible silicon chip, enabling quantum computers to operate alongside traditional servers in data centers at a fraction of the cost of competing systems, with $11 million in funding and partnerships with Arm and GlobalFoundries to scale silicon spin qubit technology for commercial applications.

EuQlid - Quantum Computing Company Profile | Quantum Navigator

EuQlid

EuQlid develops advanced trapped ion quantum systems with focus on high-fidelity qubit operations and scalable ion trap architectures, providing quantum computing solutions for research and commercial applications that require precise atomic control and long coherence times for quantum simulation and optimization problems.

Company Information

Key People

Unknown

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HYPRES - Quantum Computing Company Profile | Quantum Navigator

HYPRES

HYPRES specializes in superconducting electronics and rapid single flux quantum (RSFQ) technology for quantum computing applications, providing advanced cryogenic electronics, superconducting circuits, and quantum control systems that enable precise manipulation and readout of quantum states in superconducting quantum processors with over four decades of expertise in superconducting technologies.

Company Information

Key People

Unknown

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HYQ Bit - Quantum Computing Company Profile | Quantum Navigator

HYQ Bit

HYQ Bit develops trapped ion quantum computers using precision-controlled ion trapping technology to create high-fidelity quantum systems for research and commercial applications, contributing to China’s growing quantum computing ecosystem with focus on scalable ion trap architectures for quantum simulation and optimization applications.

Company Information

Key People

Unknown

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Intel Quantum - Quantum Computing Company Profile | Quantum Navigator

Intel Quantum

Intel Quantum leverages the company’s semiconductor manufacturing expertise to develop silicon spin qubit technology including their Tunnel Falls quantum processor chip, offering advantages in manufacturability and integration with classical electronics while researching cryogenic control electronics and quantum networking to build scalable quantum computing systems using familiar silicon fabrication processes.

Company Information

Key People

Jim Clarke (Director), Stefano Pellerano (Principal Engineer)

Investment Information

  • Status: public
  • Ticker: INTC
  • Total Raised: Internal R&D
  • Market Cap: $115B (September 2025)

Recent Funding Rounds

  • 2024-12-10: strategic - $1.2B - Quantum computing R&D budget allocation for Horse Ridge III and Tunnel Falls development
  • 2024-08-15: strategic - $500M - Partnership investment with Laboratory for Physical Sciences quantum research
  • 2023-06-22: strategic - $300M - Silicon spin qubit fabrication facility expansion

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IQM - Quantum Computing Company Profile | Quantum Navigator

IQM

IQM Quantum Computers specializes in building on-premise superconducting quantum computers for research institutions and enterprises, offering customizable quantum processors with application-specific architectures and providing full-stack quantum solutions including hardware, software, and services for organizations seeking dedicated quantum computing capabilities rather than cloud access. In September 2025, IQM raised $320 million (€275 million) in a record-breaking Series B funding round led by Ten Eleven Ventures, marking the largest Series B raise ever in quantum computing outside the US and bringing the company’s valuation to over $1 billion as Europe’s first quantum unicorn. The funding brings IQM’s total raised to $600 million and will accelerate global expansion into the US market, scale data center infrastructure, and fuel the company’s roadmap toward error-corrected systems from thousands to millions of qubits. IQM ranks first globally in quantum computer units sold with 15 units delivered to 10 customers worldwide, with over 300 employees across Finland, France, Germany, Italy, Japan, Poland, Spain, Singapore, South Korea, and the United States.

kiutra - Quantum Computing Company Profile | Quantum Navigator

kiutra

kiutra is a German company founded in 2018 that develops advanced cryogenic cooling systems including dilution refrigerators and dry cryostats specifically designed for quantum computing and quantum sensing applications, providing ultra-low temperature solutions that enable quantum devices to operate at the millikelvin temperatures required for quantum coherence, offering turnkey cryogenic systems and services to quantum technology companies, research institutions, and universities worldwide developing quantum computers and quantum sensors.

Company Information

Key People

Unknown

Lightsynq - Quantum Computing Company Profile | Quantum Navigator

Lightsynq

Lightsynq was a Boston-based startup founded in 2022 that developed advanced photonic quantum solutions including quantum light sources, photonic integrated circuits, and quantum networking components to enable scalable photonic quantum computing and quantum communication systems for applications requiring room-temperature operation and network connectivity. In June 2025, IonQ acquired Lightsynq Technologies to advance quantum computing and networking scalability, bringing over 20 patents to IonQ’s portfolio. The acquisition positioned IonQ to strengthen its photonic interconnect capabilities and quantum memory technologies, integrating Lightsynq’s expertise in photonic quantum systems with IonQ’s trapped-ion quantum computing platform to enable more scalable quantum architectures.

Maybell Quantum - Quantum Computing Company Profile | Quantum Navigator

Maybell Quantum

Maybell Quantum develops advanced cryogenic quantum systems and ultra-low temperature solutions specifically designed for quantum computing applications, providing dilution refrigerators, cryogenic electronics, and thermal management systems that enable quantum processors to operate at the millikelvin temperatures required for quantum coherence.

Company Information

Key People

Unknown

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MemQ - Quantum Computing Company Profile | Quantum Navigator

MemQ

MemQ develops quantum memory solutions and quantum storage systems that enable the temporary storage and retrieval of quantum information, providing essential components for quantum networks, quantum repeaters, and distributed quantum computing applications where quantum states need to be preserved over time and distance.

Company Information

Key People

Unknown

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Mesa Quantum - Quantum Computing Company Profile | Quantum Navigator

Mesa Quantum

Mesa Quantum develops chip-scale quantum sensing technologies that integrate quantum sensors with advanced semiconductors to create miniaturized quantum sensing devices for precision measurement applications, focusing on atomic magnetometry, inertial navigation, and quantum sensing solutions that can be deployed in portable and mobile platforms, enabling quantum-enhanced sensing capabilities for defense, aerospace, and commercial applications requiring ultra-precise measurements in challenging environments where traditional sensors cannot achieve required performance levels.

Company Information

Key People

Scott Faris (Founder, CEO)

NanoQT - Quantum Computing Company Profile | Quantum Navigator

NanoQT

Nanofiber Quantum Technologies (NanoQT) is a Tokyo-based quantum technology company founded in 2022 that develops cavity-QED based, fiber-native quantum interconnects for networked quantum computing. The company secured $14 million in Series A funding in October 2025 led by Phoenix Venture Partners to build quantum interconnect infrastructure enabling scalable, modular quantum computing systems. NanoQT specializes in ultra-low-loss nanofiber cavity technology engineered for quantum processors, enabling strong atom-photon coupling and paving the way for scalable quantum interconnects that link quantum processing units via photons. With offices in Tokyo, Palo Alto, and College Park, the company focuses on developing quantum networking hardware essential for distributed quantum computing and quantum communication systems, contributing to Japan’s quantum technology ecosystem and advancing fiber-native quantum interconnect solutions for next-generation quantum computing architectures.

NanoSonic - Quantum Computing Company Profile | Quantum Navigator

NanoSonic

NanoSonic develops advanced nanomaterials and coatings for quantum computing applications including low-loss dielectric materials, superconducting films, and specialized substrates that enhance the performance of quantum devices by reducing decoherence and improving qubit quality factors in superconducting quantum systems.

Company Information

Key People

Unknown

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NEC - Quantum Computing Company Profile | Quantum Navigator

NEC

NEC is a Japanese technology company that develops quantum annealing and gate-based quantum computing systems, creating quantum computers for optimization problems and quantum simulations while offering quantum cloud services and quantum software development tools, implementing ParityQC’s architecture in their first quantum processor and focusing on practical quantum applications in logistics optimization, financial modeling, and traffic management, serving Japanese enterprises and research institutions with quantum computing solutions that address real-world optimization challenges across telecommunications, transportation, and business intelligence applications as part of Japan’s national quantum computing strategy.

Nord Quantique - Quantum Computing Company Profile | Quantum Navigator

Nord Quantique

Nord Quantique is a pioneering quantum error correction company founded in 2020 in Sherbrooke, Quebec, that develops fault-tolerant quantum computers using bosonic codes and multimode encoding with their breakthrough Tesseract code, exploiting the natural redundancy of photons within quantum modes to achieve built-in error resilience without requiring more physical qubits, demonstrating industry-first quantum error correction at the qubit level with plans to deliver utility-scale machines exceeding 100 logical qubits by 2029 while consuming dramatically less energy than classical HPC systems.

Orange Quantum Systems - Quantum Computing Company Profile | Quantum Navigator

Orange Quantum Systems

Orange Quantum Systems develops specialized quantum chip testing and characterization systems that enable quantum device manufacturers to validate and optimize their quantum processors through precise measurement and analysis capabilities, providing essential tools for quantum hardware development and quality control in the quantum computing supply chain.

Company Information

Key People

Unknown

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ORCA Computing - Quantum Computing Company Profile | Quantum Navigator

ORCA Computing

ORCA Computing is a University of Oxford spinout founded in 2019 that develops photonic quantum computers using single photons and linear optical quantum computing, creating quantum systems that can operate at room temperature without requiring complex cryogenic cooling, focusing on near-term quantum applications in optimization and machine learning through their cloud-accessible photonic quantum processors, working to demonstrate quantum advantage in practical applications while building partnerships with enterprises and research institutions seeking photonic quantum computing solutions.

Origin Quantum - Quantum Computing Company Profile | Quantum Navigator

Origin Quantum

Origin Quantum stands as China’s first quantum computer company, developing superconducting quantum processors and quantum cloud services while offering comprehensive quantum solutions including quantum software development tools, quantum education programs, and consulting services to advance China’s quantum computing capabilities across research institutions and commercial applications.

Company Information

Key People

Guo Guoping (Founder), Kong Weicheng (CEO)

Investment Information

  • Status: private
  • Total Raised: $1500M
  • Last Valuation: $3.2B

Recent Funding Rounds

  • 2024-09-12: series-c - $800M - Series C funding led by China Investment Corporation
  • 2022-12-08: series-b - $400M - Series B funding round
  • 2020-03-15: series-a - $300M - Series A funding round

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Oxford Ionics - Quantum Computing Company Profile | Quantum Navigator

Oxford Ionics

Oxford Ionics was spun out of Oxford University in 2019 by founders Chris Ballance and Tom Harty, developing breakthrough electronic qubit control technology for trapped ion quantum computers that uses standard semiconductor chips to control ions rather than expensive laser systems, enabling scalable quantum processor manufacturing and was acquired by IonQ for $1.075 billion in June 2025, representing the largest acquisition in quantum computing history and combining IonQ’s quantum computing stack with Oxford Ionics’ chip-based ion trap technology manufactured on standard semiconductor processes.

Oxford Quantum Circuits - Quantum Computing Company Profile | Quantum Navigator

Oxford Quantum Circuits

Oxford Quantum Circuits (OQC) is a UK-based quantum computing company that develops superconducting quantum computers featuring innovative 3D architecture and proprietary Coaxmon qubit technology. Founded in 2017 by quantum computing pioneers from Oxford University, OQC has built Europe’s most advanced quantum computing systems, including their flagship Lucy processor with proprietary qubit designs that offer improved coherence and reduced crosstalk. The company’s unique 3D quantum computing architecture enables better connectivity and scalability compared to traditional planar approaches. OQC operates the UK’s first commercial quantum computing service and has established partnerships with organizations including the European Space Agency and various government initiatives. Their quantum computers are accessible through major cloud platforms, serving customers in optimization, machine learning, and scientific computing. OQC’s combination of cutting-edge hardware innovation, commercial cloud services, and strong European positioning makes them a key player in the global quantum computing ecosystem, particularly for organizations seeking alternatives to US-based quantum cloud providers.

Pasqal - Quantum Computing Company Profile | Quantum Navigator

Pasqal

Pasqal builds programmable neutral atom quantum computers with over 100 qubits using arrays of cold atoms trapped by optical tweezers, enabling both digital quantum computing and analog quantum simulation for applications in optimization, machine learning, and materials science, founded by researchers from Institut d’Optique to commercialize breakthrough research in neutral atom quantum technologies.

Company Information

Key People

Georges-Olivier Reymond (CEO), Thierry Lahaye (Co-founder)

Photonic Inc - Quantum Computing Company Profile | Quantum Navigator

Photonic Inc

Photonic Inc develops fault-tolerant quantum computers using silicon photonic technology and spin-photon interfaces to create distributed quantum systems that can operate at telecommunications wavelengths, enabling networking capabilities and room-temperature operation for quantum computing applications in optimization, machine learning, and distributed quantum computing networks.

Company Information

Key People

Stephanie Simmons (Founder, CEO)

Investment Information

  • Status: private
  • Total Raised: $109M
  • Last Valuation: $400M

Recent Funding Rounds

  • 2023-03-14: series-a - $100M - Series A funding round led by Microsoft
  • 2021-04-08: seed - $9M - Seed funding round

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PINC Technologies - Quantum Computing Company Profile | Quantum Navigator

PINC Technologies

PINC Technologies is a Pasadena-based Caltech spinout founded in 2023 that develops scalable nonlinear photonic integrated circuits for quantum computing applications. The company emerged from stealth in October 2025 with $6.8 million in total funding to unlock scalable nonlinearity for photonic chips through their proprietary NanoPPLN platform. PINC’s technology brings high-performance nonlinear optics to integrated photonic circuits, enabling applications in quantum computing, optical sensing, artificial intelligence, data networks, biomedical devices, atomic clocks, lidar, and metrology. The company’s NanoPPLN platform addresses the missing scalable nonlinearity in photonic integrated circuits, making nonlinear optics fully integrated and scalable for next-generation quantum and photonic systems, contributing to advances in quantum photonics and enabling new capabilities across multiple technological domains requiring integrated nonlinear optical components.

Planckian - Quantum Computing Company Profile | Quantum Navigator

Planckian

Planckian is a Pisa-based quantum technology startup that emerged as a joint spinoff from the University of Pisa and Scuola Normale Superiore to pioneer groundbreaking solid-state energy technology using quantum mechanics. The company secured €2.7 million in pre-seed funding in July 2023 led by CDP Venture, Exor Ventures, and private investors to transcend traditional electrochemical approaches in energy technology. Planckian’s research focuses on leveraging quantum effects to enable qubits to achieve collective higher energy states, with potential applications in revolutionizing sustainable energy solutions including quantum batteries capable of indefinite energy storage. The company also develops superconducting quantum computers with innovative global control schemes, combining quantum battery research with quantum computing hardware development. Founded by leading quantum researchers including Marco Polini (Chief Scientific Officer) and Vittorio Giovannetti (Executive Scientific Advisor), Planckian represents Italy’s push into quantum energy applications and next-generation quantum processor architectures.

planqc - Quantum Computing Company Profile | Quantum Navigator

planqc

planqc is a German quantum computing startup founded in 2022 as part of the Munich Quantum Valley ecosystem that develops neutral atom quantum computers using arrays of cold atoms trapped by optical tweezers, creating scalable quantum systems with high connectivity and programmable architectures for quantum computing applications in optimization, simulation, and machine learning, leveraging Munich’s strong quantum research ecosystem and partnerships with academic institutions to advance neutral atom quantum technology toward commercial applications.

Q.ANT - Quantum Computing Company Profile | Quantum Navigator

Q.ANT

Q.ANT develops photonic quantum computing technologies and quantum photonics components for quantum information processing, quantum sensing, and quantum communication applications, leveraging advanced photonic integration and quantum optics to create practical quantum systems for commercial and research applications.

Company Information

Key People

Unknown

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Qilimanjaro - Quantum Computing Company Profile | Quantum Navigator

Qilimanjaro

Qilimanjaro Quantum Tech is a Barcelona Supercomputer Center spinout founded in 2019 that develops quantum computing solutions combining quantum annealing and gate-model quantum computing approaches, creating hybrid quantum-classical systems that can solve optimization problems and quantum simulations for industries including finance, logistics, and materials science, leveraging Spain’s supercomputing expertise and European quantum initiatives to advance practical quantum computing applications with focus on near-term quantum advantage in optimization and simulation problems.

Qolab - Quantum Computing Company Profile | Quantum Navigator

Qolab

Qolab is a Madison, Wisconsin-based superconducting quantum computing company founded in 2022 by Dr. John Martinis, former Google Quantum AI lead scientist, and Dr. Robert McDermott from the University of Wisconsin-Madison. The company secured over $16 million in Series A financing led by Octave Ventures with co-investment from Development Bank of Japan Inc., Wisconsin Alumni Research Foundation, and Phoenix Venture Partners to develop reliable, high-performance quantum processors. Led by CEO Alan Ho, Qolab combines a physics-driven approach with a focus on qubit quality and practical hardware solutions, leveraging semiconductor fabrication tools and innovative scaling techniques for quantum computing systems. The company’s mission is to develop utility-scale quantum computing technology that meets the growing demand for reliable quantum processors, building on the pioneering work of its founders in superconducting quantum systems and quantum error correction.

Quandela - Quantum Computing Company Profile | Quantum Navigator

Quandela

Quandela is a French photonic quantum computing company founded in 2017 that specializes in developing modular photonic quantum computers using single-photon sources and quantum light manipulation, creating scalable quantum systems based on photonic qubits that operate at room temperature, offering cloud-accessible quantum processors and quantum light sources for research institutions and enterprises working on quantum computing applications in optimization, machine learning, and quantum simulation, with focus on making photonic quantum technology commercially viable for various industries.

Quantum Brilliance - Quantum Computing Company Profile | Quantum Navigator

Quantum Brilliance

Quantum Brilliance develops revolutionary room-temperature quantum accelerators using synthetic diamond with nitrogen-vacancy centers as qubits, eliminating the need for cryogenic cooling systems while creating compact quantum computers suitable for edge computing, mobile platforms, and space applications where traditional quantum systems cannot operate.

Company Information

Key People

Andrew Horsley (Co-founder, CEO), Marcus Doherty (Co-founder)

Investment Information

  • Status: private
  • Total Raised: $78M
  • Last Valuation: $350M

Recent Funding Rounds

  • 2024-05-15: series-b - $45M - Series B funding for diamond NV quantum processors
  • 2022-01-18: series-a - $33M - Series A funding round

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Quantum Circuits Inc - Quantum Computing Company Profile | Quantum Navigator

Quantum Circuits Inc

Quantum Circuits Inc develops superconducting quantum computers with focus on novel qubit designs and quantum error correction techniques, working to advance the scalability and performance of superconducting quantum systems through innovative circuit architectures and control methodologies for practical quantum computing applications.

Company Information

Key People

Robert Schoelkopf (Founder), Luigi Frunzio (Co-founder)

Investment Information

  • Status: private
  • Total Raised: $80M
  • Last Valuation: $300M

Recent Funding Rounds

  • 2024-08-15: series-b - $60M - Series B funding for dual-rail qubit quantum systems with built-in error detection
  • 2021-03-18: series-a - $20M - Series A funding round

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Quantum Dice - Quantum Computing Company Profile | Quantum Navigator

Quantum Dice

Quantum Dice is a UK quantum hardware company founded in 2019 that develops quantum random number generators using quantum tunneling effects in semiconductor devices to produce true quantum randomness, creating compact quantum entropy sources and random number generation hardware for cybersecurity, cryptography, and secure communications applications, providing quantum random number generators, entropy devices, and quantum-safe randomness solutions for telecommunications providers, cybersecurity companies, and organizations requiring certified high-quality entropy sources for encryption keys, digital signatures, and secure protocols that leverage quantum physical processes for unpredictable randomness generation.

Quantum Motion - Quantum Computing Company Profile | Quantum Navigator

Quantum Motion

Quantum Motion develops silicon-based quantum computers using CMOS technology and hot qubits that operate at higher temperatures than traditional quantum systems, founded by researchers from Oxford and UCL to create quantum processors that integrate with classical electronics using standard semiconductor manufacturing processes for cost-effective and scalable quantum computing.

Company Information

Key People

John Morton (Co-founder), Simon Benjamin (Co-founder)

Investment Information

  • Status: private
  • Total Raised: $67M
  • Last Valuation: $250M

Recent Funding Rounds

  • 2024-01-09: series-a - $50M - Series A funding for silicon quantum processors
  • 2021-05-11: seed - $17M - Seed funding round

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Quantum Source - Quantum Computing Company Profile | Quantum Navigator

Quantum Source

Quantum Source is an Israeli photonic quantum computing company founded in 2021 by semiconductor veterans including CEO Oded Melamed and Professor Barak Dayan, developing breakthrough technology that harnesses single rubidium atoms trapped on proprietary photonic chips to generate single photons and implement atom-photon entangling quantum gates with five orders of magnitude better efficiency than state-of-the-art implementations, enabling the construction of complex 3D cluster states for error-correction with over $77 million in funding to build large-scale quantum computers by the decade’s end.

QuantWare - Quantum Computing Company Profile | Quantum Navigator

QuantWare

QuantWare is a TU Delft/QuTech spinout founded in 2020 by Dr. Alessandro Bruno and MSc Matthijs Rijlaarsdam that became the world’s first company to commercially manufacture superconducting quantum processors for third parties, offering off-the-shelf QPUs like the 5-qubit Soprano and 25-qubit Contralto. In March 2025, QuantWare raised €20 million in Series A funding co-led by Invest-NL Deep Tech Fund and Innovation Quarter to accelerate development of their revolutionary VIO technology, which solves scaling bottlenecks by routing connections vertically in 3D, enabling superconducting quantum processors to scale to thousands of qubits and potentially millions in a single processor. The company’s foundry services enable customers to build full-stack quantum computers at one-tenth the cost of competing solutions, with total funding now exceeding $32.9 million to lower barriers to entry in quantum computing and unlock the fastest path towards quantum computers with unprecedented qubit counts.

Qubitekk - Quantum Computing Company Profile | Quantum Navigator

Qubitekk

Qubitekk specializes in quantum networking hardware including quantum key distribution systems, quantum random number generators, and quantum communication components that enable secure quantum networks and quantum internet infrastructure for government, defense, and commercial applications requiring ultra-secure communications.

Company Information

Key People

Unknown

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QUDORA - Quantum Computing Company Profile | Quantum Navigator

QUDORA

QUDORA is a German quantum computing developer specializing in trapped-ion quantum computers using Near-Field Quantum Control (NFQC) technology. The company’s flagship NFQC technology relies on ions confined in electromagnetic traps and manipulated with finely tuned laser pulses, enabling room-temperature operation that reduces infrastructure costs compared to superconducting circuits requiring millikelvin temperatures. QUDORA’s compact, scalable architecture allows dozens of ions to be entangled in a single chip-scale module to create fault-tolerant quantum processors capable of running complex algorithms in minutes with cloud-based workflow compatibility. In October 2025, QUDORA closed a strategic partnership with Kensho, a Taiwanese distributor, to accelerate quantum computing commercialization in Taiwan, combining QUDORA’s trapped-ion platform with Kensho’s deep ties to Taiwan’s precision-manufacturing sector to bring quantum-enhanced tools into laboratories, factories, and corporate data centers across Asia-Pacific. The alliance generated significant attention at SEMICON Taiwan 2025, targeting applications in semiconductor design, pharmaceutical research, and industrial optimization while expanding QUDORA’s presence beyond Europe into the strategically important Asia-Pacific market.

QuiX Quantum - Quantum Computing Company Profile | Quantum Navigator

QuiX Quantum

QuiX Quantum develops integrated photonic quantum processors using silicon photonics technology to create scalable quantum computing systems that operate at room temperature, focusing on photonic quantum circuits and quantum interferometry for applications in quantum simulation, optimization, and quantum machine learning.

Company Information

Key People

Unknown

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Quobly - Quantum Computing Company Profile | Quantum Navigator

Quobly

Quobly (formerly Siquance) develops quantum hardware solutions with focus on superconducting quantum devices and quantum system integration, working to advance European quantum computing capabilities through innovative quantum technologies and collaborative research with academic and industrial partners.

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Quside - Quantum Computing Company Profile | Quantum Navigator

Quside

Quside is a Spanish quantum technology company founded in 2017 that develops quantum random number generators (QRNGs) and quantum entropy sources for cybersecurity, cryptography, and secure communications applications, providing true random number generation based on quantum physical processes that ensure unpredictable and unbiased randomness essential for encryption keys, secure protocols, and high-security applications in telecommunications, finance, and government sectors requiring certified quantum-grade randomness for cryptographic security.

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Carlos Abellan (Co-founder, CEO), Waldimar Amaya (Co-founder, CTO)

Rotonium - Quantum Computing Company Profile | Quantum Navigator

Rotonium

Rotonium is an Italian deep-tech startup founded in 2022 that secured €1 million in seed funding led by Galaxia and CDP Venture Capital to advance single-photon qudit technology for room-temperature quantum computing. The company develops silicon photonics components that enable quantum computers to operate at room temperature, allowing for compact, versatile systems usable on Earth, in the air, and in space. Rotonium’s technology is designed to operate in energy-constrained environments like space, positioning the company as a potential leader in edge quantum computing applications. The company focuses on quantum computing for space and edge applications where traditional cryogenic quantum computers are impractical, with plans to collaborate with universities and research centers to advance next-generation quantum processing capabilities. Rotonium’s room-temperature approach using single-photon qudits represents a distinct architectural path from traditional superconducting and trapped-ion approaches, targeting specialized applications in aerospace and edge computing markets.

SeeQC - Quantum Computing Company Profile | Quantum Navigator

SeeQC

SeeQC operates as a digital quantum computing chip foundry that combines superconducting quantum processors with classical electronics on the same chip, using single flux quantum (SFQ) technology to create energy-efficient quantum systems with integrated classical control, founded by quantum computing veterans to address the challenge of scaling quantum computers through advanced chip design and manufacturing.

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John Levy (CEO, Co-founder), Matthew Hutchings (CTO, Co-founder)

SemiQon - Quantum Computing Company Profile | Quantum Navigator

SemiQon

SemiQon develops silicon-based quantum processors using advanced semiconductor fabrication techniques to create quantum computing systems that leverage the existing semiconductor industry infrastructure, focusing on silicon spin qubits and quantum dots for scalable quantum computing applications with potential advantages in manufacturability and integration with classical electronics.

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Himadri Majumdar (Co-founder, CEO), Joonas Govenius (Co-founder, CTO)

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Silicon Quantum Computing - Quantum Computing Company Profile | Quantum Navigator

Silicon Quantum Computing

Silicon Quantum Computing (SQC) is an Australian quantum technology company founded in 2017 that develops silicon-based quantum processors using silicon spin qubits fabricated with semiconductor manufacturing techniques, leveraging Australia’s strong research in silicon quantum devices to create scalable quantum computers that can utilize existing chip fabrication infrastructure, focusing on building fault-tolerant quantum systems for practical applications while working closely with academic institutions and government initiatives to advance Australia’s quantum computing capabilities.

Single Quantum - Quantum Computing Company Profile | Quantum Navigator

Single Quantum

Single Quantum specializes in superconducting nanowire single photon detectors (SNSPDs) that provide the highest performance photon detection capabilities essential for quantum communication, quantum computing, and quantum sensing applications, offering detection systems with near-perfect efficiency, low noise, and high timing resolution for researchers and companies building quantum technologies.

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SiQure - Quantum Computing Company Profile | Quantum Navigator

SiQure

SiQure focuses on silicon-based quantum computing technologies that leverage semiconductor manufacturing processes and silicon spin qubits to create quantum processors with potential advantages in manufacturability, integration with classical electronics, and scalability for building large-scale fault-tolerant quantum computers using familiar silicon fabrication infrastructure.

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Jelmer Renema (Co-founder, CEO), Stefan Krastanov (Co-founder)

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Sparrow Quantum - Quantum Computing Company Profile | Quantum Navigator

Sparrow Quantum

Sparrow Quantum develops high-performance single-photon sources and quantum light generation systems essential for photonic quantum computing, quantum communication, and quantum sensing applications, providing reliable quantum light sources with high purity and efficiency for researchers and companies building photonic quantum technologies.

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SpinQ - Quantum Computing Company Profile | Quantum Navigator

SpinQ

SpinQ develops desktop quantum computers using nuclear magnetic resonance (NMR) technology to create compact, room-temperature quantum systems for educational and research purposes, making quantum computing accessible to universities and research institutions with portable systems that demonstrate quantum algorithms and quantum physics principles without requiring complex cryogenic infrastructure.

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TuringQ - Quantum Computing Company Profile | Quantum Navigator

TuringQ

TuringQ is China’s first optical quantum computing company established in 2021 by Professor Jin Xianmin from Shanghai Jiaotong University, specializing in photonic quantum processors using lithium niobate on insulator (LNOI) photonic chips and femtosecond laser direct writing technology, with products including the TuringQ Gen 1 fully integrated optical quantum computer and FeynmanPAQS quantum simulation software, having completed 500 million yuan ($79 million) in funding and established China’s first photonic chip pilot line in Wuxi for applications in financial technology, biomedicine, and artificial intelligence.

Universal Quantum - Quantum Computing Company Profile | Quantum Navigator

Universal Quantum

Universal Quantum develops modular trapped ion quantum computers with a unique architecture that allows individual ion trap modules to be connected via photonic links, enabling scalable quantum systems that can grow by adding modules while maintaining high-fidelity operations. In July 2024, Universal Quantum unveiled the first commercial Application-Specific Integrated Circuit (ASIC) chip for trapped-ion quantum computing, featuring built-in UQConnect technology capable of directly transferring qubits between chip modules at a world record rate of 2,400 operations per second with 99.999993% fidelity. The company is delivering two world-first innovations to the DLR Quantum Computing Initiative with a €67 million investment: a single-chip quantum computer and a multi-chip system initially supporting up to 100 qubits. Founded by quantum computing researchers from the University of Sussex, Universal Quantum operates at an accessible temperature of -200°C compared to near absolute zero requirements of other systems, positioning them to scale quantum computers to millions of qubits through their proprietary modular approach.

Vescent - Quantum Computing Company Profile | Quantum Navigator

Vescent

Vescent develops precision photonics and laser systems for quantum computing, quantum sensing, and quantum communication applications, providing laser stabilization, optical frequency combs, and precision measurement instruments that enable the optical control and manipulation of quantum systems across various quantum technology platforms.

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Zero Point Motion - Quantum Computing Company Profile | Quantum Navigator

Zero Point Motion

Zero Point Motion is a UK quantum technology company founded in 2020 that develops quantum inertial navigation systems and quantum accelerometers for precision navigation applications where GPS is unavailable, creating compact quantum sensors that leverage cold atom interferometry and atomic physics to provide ultra-precise measurements of acceleration and rotation for autonomous vehicles, submarines, aircraft, and spacecraft requiring navigation-grade performance in GPS-denied environments, offering quantum sensing solutions that maintain long-term navigation accuracy without external reference signals through atomic-scale precision measurements.