Quantum Computing Companies In 2026 - Quantum Zeitgeist

Quantum Computing Companies in 2026 The most comprehensive publicly available directory of quantum computing companies across hardware, software, security, sensing, components and services spanning dozens of countries. The quantum computing industry has crossed the billion-dollar revenue mark. Stock valuations for pure-play quantum companies have reached tens of billions. Governments on six continents have committed more than $40 billion in national quantum strategies. Google’s Willow chip demonstrated a 13,000x speedup over the world’s fastest supercomputer. Quantinuum secured a billion-dollar joint venture with Qatar. IonQ executed $2.5 billion in acquisitions across eighteen months. The Quantum Navigator tracks hundreds of organisations spanning dozens of countries. This article profiles the most significant players across every segment of the quantum technology stack. Every company links to its full profile on the Quantum Navigator. If your company is missing, get in touch and we will add you. Expand AllCollapse All ⚛️ Superconducting Qubits IBM, Google, Rigetti, IQM, OQC and superconducting circuit companies IBM QuantumNYSE: IBM🇺🇸 US Led by Jay Gambetta (VP, IBM Quantum), IBM has invested more in superconducting quantum computing than any other organisation. IBM operates the largest fleet of cloud-accessible quantum systems through IBM Quantum Network (300+ organisations). The 156-qubit Heron processor achieved 16x better performance over 2022 systems. In November 2025, the 120-qubit Nighthawk featured 218 next-generation tunable couplers enabling 30% more circuit complexity. IBM achieved a 10x speedup in QEC decoding, one year ahead of schedule. The IBM-Cisco partnership targets networked distributed quantum infrastructure by 2030. The roadmap extends to Kookaburra (2026, logical qubits + quantum memory) and Starling (2028, 200 logical qubits from ~10,000 physical qubits using LDPC codes that IBM claims require 90% fewer qubits than Google’s surface code). Qiskit remains the world’s most widely used quantum programming framework. Google Quantum AINASDAQ: GOOGL🇺🇸 US Published a landmark Nature paper in October 2025 demonstrating the first verifiable quantum advantage using its Quantum Echoes algorithm, led by Hartmut Neven (founder, Google Quantum AI) and Erik Lucero (Lead Engineer), running 13,000x faster than the best classical algorithm on the world’s fastest supercomputer. The 105-qubit Willow chip achieved 99.97% single-qubit gate fidelity, 99.88% entangling gates, and 99.5% readout fidelity, completing nearly 10 billion error correction cycles without error. T1 coherence reached ~100 microseconds (5x improvement). Led a $230M investment in QuEra alongside SoftBank and acquired Atlantic Quantum (MIT spinout) for modular chip architecture. Roadmap targets a cryptographically relevant quantum computer (CRQC). Rigetti ComputingNYSE: RGTI🇺🇸 US Designs and fabricates its own superconducting processors under CEO Subodh Kulkarni (succeeding founder Chad Rigetti in 2022) at its Fremont, California facility, one of the few vertically integrated quantum hardware companies. The Ankaa processor family targets improved gate fidelity and modular multi-chip scaling. Stock surged over 400% in twelve months before pulling back after delaying Cepheus-1-108Q to Q1 2026. Provides cloud access through Amazon Braket, Azure Quantum and its own Quantum Cloud Services. Focused on near-term commercial applications in ML, simulation and optimisation with partnerships spanning finance, pharma and materials science. IQM Quantum ComputersSPAC Pending🇫🇮 Finland Announced a SPAC merger with Nasdaq-listed Real Asset Acquisition Corp (RAAQ) in February 2026 at a $1.8B pre-money valuation, with closing expected around June 2026 and a potential dual listing on the Helsinki Stock Exchange. The deal could deliver $450M+ in cash at closing. Co-founded by CEO Dr. Jan Goetz, CTO Dr. Kuan Yen Tan, Prof. Mikko Möttönen and Dr. Juha Vartiainen. Secured $320M in its Series B (September 2025), bringing total capital to $600M, the largest quantum computing funding outside the US. Headquartered in Espoo, Finland with 300+ employees across 13 countries. Manufactured 30 full-stack quantum computers and sold 21 systems to 13 customers, including four of the top ten supercomputing centres globally. Reported at least $35M in 2025 revenue and over $100M in bookings. The 20-qubit IQM Garnet is available through Amazon Braket. Partnerships with NVIDIA, Hewlett Packard Enterprise and AWS. Strategy centres on co-design with customers for application-specific hardware, aiming to become the go-to quantum provider for European sovereignty. Oxford Quantum Circuits (OQC)🇬🇧 UK Founded by Dr. Peter Leek from the University of Oxford. Led by CEO Gerald Mullally (appointed permanently July 2025 after 14 months as interim, succeeding founding CEO Dr. Ilana Wisby). Uses a proprietary Coaxmon architecture placing qubit control circuitry in a separate layer, improving scalability by reducing on-chip interference. Launched the Dimon dual-rail qubit architecture designed for speed, scale and quality. Expanded into the US with the first quantum computer deployed in New York City, delivering low-latency quantum compute to Wall Street. Completed Series B funding backed by Chevron and Sumitomo Mitsui Trust Bank. Launched the UK’s first quantum error correction testbed and world’s first integration into a commercial data centre. Sir Jeremy Fleming (former Director of GCHQ) appointed to board. Systems deployed in London, Tokyo, New York and Spain. Alice & Bob🇫🇷 France Co-founded and led by CEO Théau Peronnin and CTO Raphaël Lescanne. Developing cat qubits, a fundamentally different superconducting approach with inherent protection against bit-flip errors. Could enable 100 high-fidelity logical qubits from just 1,500 physical qubits, a dramatic reduction from conventional assumptions. Received €16.5M France 2030 grant. Technology draws on Ecole Normale Superieure research, representing one of the most ambitious approaches to solving the error correction bottleneck. Origin Quantum🇨🇳 China One of China’s leading quantum companies, under CEO Professor Guo Guoping (USTC) with ~$148M raised in Series B. Origin Wukong, a 72-qubit processor, was used to fine-tune a billion-parameter AI model. Based in Hefei, connected to USTC. Provides cloud services through Origin Quantum Cloud (100+ countries), developed QPanda framework and isQ visual programming tool. Building toward larger processors as part of China’s national quantum strategy. Nord Quantique🇨🇦 Canada Sherbrooke-based company under CEO Julien Camirand Lemyre pioneering bosonic error correction on superconducting hardware. Encodes logical qubits in microwave photon states within 3D cavities, enabling hardware-level error suppression with far fewer physical qubits than surface code approaches. Raised C$9M in seed and Series A funding led by Quantonation and Real Ventures. Founded in 2020 from Universite de Sherbrooke research. Their approach could compress the path to fault tolerance by orders of magnitude, potentially requiring only thousands of physical qubits where competitors need millions. Partnered with Ericsson to explore quantum-enhanced 6G telecommunications. Seeqc🇺🇸 US Single Flux Quantum (SFQ) digital logic chips under co-founder and CEO John Levy that operate at cryogenic temperatures alongside quantum processors. Headquartered in Elmsford, New York with a facility in London. Raised $30M+ in venture funding. Their approach moves classical control electronics inside the cryostat, dramatically reducing wiring complexity and thermal load. Current quantum computers route thousands of coaxial cables from room temperature down to millikelvin stages; Seeqc’s SFQ chips could replace this entire wiring stack with on-chip digital logic, a prerequisite for scaling beyond tens of thousands of qubits. Partners include Merck and UK National Quantum Computing Centre. Anyon Technologies🇸🇬 Singapore Building superconducting quantum processors in Singapore under CEO Dr. Zhengfeng Ji as part of the nation’s S$300M National Quantum Strategy. Developing full-stack quantum computing systems tailored for Southeast Asian research and commercial applications. Singapore has positioned itself as a quantum hub with substantial government investment, strong university programmes at NUS and NTU, and a growing cluster of quantum startups. Anyon contributes locally manufactured hardware, reducing dependence on overseas suppliers. SpinQ Technology🇨🇳 China Shenzhen-based developer of compact desktop quantum computers founded by Dr. Xiang Liang for education and research, including the Gemini and Gemini Mini systems priced from under $10,000. Products use nuclear magnetic resonance (NMR) and superconducting technologies in form factors small enough for classroom deployment. Shipped to universities across 30+ countries. Addresses a critical workforce gap: the quantum industry needs thousands of trained engineers, but most universities lack access to real quantum hardware. SpinQ makes hands-on quantum education accessible at price points far below full-scale research systems. Atlantic Quantum🇺🇸 US (Google) MIT spinout founded by Professor William Oliver, developing fluxonium-based superconducting qubits, which offer inherently longer coherence times than conventional transmon qubits by operating at a different energy regime. Founded by William Oliver and colleagues. Acquired by Google in 2025, integrating their modular chip architecture and fluxonium expertise into Google Quantum AI’s aggressive roadmap toward a commercially relevant quantum computer by 2029. The acquisition signals Google’s recognition that next-generation qubit designs beyond the standard transmon may be essential for scaling to millions of qubits. QuantWare🇳🇱 Netherlands The world’s first commercial supplier of off-the-shelf superconducting quantum processors, spun out of TU Delft/QuTech. Raised $27M in an oversubscribed Series A. Founded by Dr. Alessandro Bruno and CEO Matthijs Rijlaarsdam. Developed VIO, a proprietary 3D vertical interconnect technology that routes qubit connections vertically rather than to chip edges, removing the primary bottleneck preventing superconducting processors from scaling beyond current qubit counts. VIO-40K enables processors with 10,000+ qubits for the first time. Awarded €7.5M from the European Innovation Council. Partnered with Seeqc, Q-CTRL, Qblox and Orange Quantum Systems to build full-stack quantum computers. Delivers QPUs at one-tenth the cost of competing solutions, positioning QuantWare as the potential “Intel of quantum computing” by democratising access to superconducting hardware. Also tracked: Bleximo (application-specific quantum processors) QuamCore🇮🇱 Israel Israeli quantum hardware company under CEO Alon Cohen (formerly Mobileye EyeC Radar Group) developing a scaling architecture for superconducting quantum systems. Raised $35M including $26M Series A (August 2025) led by Sentinel Global with Viola Ventures and Arkin Capital. Claims a fully designed and simulated architecture for scaling superconducting quantum systems to one million qubits in a single cryostat, far beyond the ~5,000-qubit per-module limit achieved by Google and IBM. Co-founded with CTO Professor Shay Hacohen-Gourgy. $4M Israel Innovation Authority grant. If validated, the approach would fundamentally change assumptions about the physical limits of superconducting systems. Qilimanjaro🇪🇸 Spain Barcelona-based company building full-stack analog quantum computers based on fluxonium qubits, a superconducting architecture that bypasses the need for error correction by exploiting analog quantum dynamics. Raised $12.6M from investors including Axon Partners and the European Innovation Council. Founded in 2019 by Jordi Blasco and Victor Canivell, with scientific leadership from Jose Ignacio Latorre (ICFO). Launched a multimodal quantum data centre in Barcelona (November 2025) in partnership with Oxigen Data Center, combining quantum processors with classical HPC. Delivering Quantum-as-a-Service to the Barcelona Supercomputing Centre. Operates within Spain’s quantum cluster alongside ICFO and the Quantum Spain national programme. 🔬 Trapped Ion IonQ, Quantinuum, AQT and companies using electromagnetic ion traps IonQNYSE: IONQ🇺🇸 US Led by CEO Niccolo de Masi (appointed February 2025, formerly IonQ Chairman and CEO of Glu Mobile), IonQ is the largest publicly traded pure-play quantum company by market capitalisation. Q3 2025 revenue reached $39.9M, a 221% year-on-year increase, with full-year 2025 guidance of $106-110M. IonQ holds the world-record 99.99% two-qubit gate fidelity on its Tempo system (#AQ 64). IonQ executed roughly $2.5B in acquisitions across eighteen months, including Oxford Ionics ($1.075B), ID Quantique ($250M), Capella Space ($318M), Qubitekk, Lightsynq, Vector Atomic and Skyloom Global, transforming itself into a full-stack platform spanning computing, networking, sensing and space. The only quantum company in Deloitte’s 2025 Fast 500, with approximately 2,000% revenue growth from 2021 to 2024. Chapman testified before Congress in November 2025. The roadmap targets a cryptographically relevant quantum computer by 2028 using roughly 20,000 qubits, scaling to approximately two million by 2030. Recent deployments include the Geneva Quantum Network (partnering UNIGE, CERN and Rolex) and Slovakia’s first national quantum network via ID Quantique. QuantinuumIPO Pending🇺🇸🇬🇧 Led by CEO Rajeeb Hazra (succeeding founder Ilyas Khan, who remains Vice Chairman and Chief Product Officer), Quantinuum was formed from the merger of Cambridge Quantum and Honeywell Quantum Solutions in 2021. The H-Series processors consistently rank as the highest-performing quantum systems in the world. The H2 processor, a 56-qubit fully connected racetrack architecture, achieved a quantum volume of 2^25 (33.5 million) and became the first quantum computer to reach Microsoft’s Level 2 Resilient phase, producing logical qubits with error rates 800x lower than physical rates using just 30 physical qubits to create four logical qubits. Quantinuum raised $600M at a $10B valuation with NVentures participating, and has filed its S-1 for a public listing widely expected to value the company above $20B. A $1B joint venture with Qatar’s Al Rabban Capital and selection for DARPA QBI Stage B underline the company’s momentum, with the Helios processor due for deployment in Singapore in 2026. The software portfolio spans InQuanto for quantum chemistry, TKET for circuit compilation and Quantum Origin for cryptographic key generation. Alpine Quantum Technologies (AQT)🇦🇹 Austria Builds compact, rack-mountable trapped ion quantum computers designed for data centre integration from Innsbruck, Austria. CEO Thomas Monz. Co-founded by Rainer Blatt, Thomas Monz and Peter Zoller, drawing on decades of pioneering trapped ion research at the University of Innsbruck, one of the birthplaces of experimental quantum computing. Raised €12.5M in Series A led by Alps Ventures. Delivers systems to national computing centres including the Leibniz Supercomputing Centre in Germany. Pursuing a photonic interconnect architecture to network multiple ion trap modules into larger systems. Backed by the EU Quantum Flagship programme. neQxt🇩🇪 Germany Won one of Germany’s Cyberagentur’s largest contracts (part of €35M total programme) under CEO Ferdinand Schmidt-Kaler to build maQue, a mobile trapped ion quantum computer for security and defence applications, targeting delivery by 2027. Spun out of Johannes Gutenberg University Mainz in 2022. Full-stack approach covering hardware development, software tools, consulting services and quantum computing time. The mobile quantum computer concept addresses a key defence requirement: battlefield and field-deployable quantum computing that can operate in tactical environments rather than fixed laboratory installations. Also developing quantum computing solutions for logistics and cryptanalysis applications. Universal Quantum🇬🇧 UK Developing a unique trapped ion architecture using microwave-driven gates and electronic interconnects rather than lasers, designed for dramatically easier manufacturing and scaling. Based in Brighton, UK, co-founded by Chairman and Chief Scientist Professor Winfried Hensinger and CEO Dr Sebastian Weidt from the University of Sussex. Raised £67M+ in funding from investors including Mitsui and IP Group. Electronic quantum interconnect technology (UQConnect) connects multiple ion trap modules without the complex optical systems that limit other trapped ion approaches. Received significant UK government funding through the National Quantum Technologies Programme. Partnerships with Rolls-Royce for aerospace applications. Building toward a million-qubit system where modular scaling becomes essential. Oxford Ionics🇬🇧 UK (IonQ) Developed revolutionary electronic qubit control technology (EQCC) that replaces lasers with on-chip electronic signals for trapped ion gate operations. Co-founded by CEO Dr. Chris Sherland and Tom Sherland from the University of Oxford. Acquired by IonQ for $1.075B in equity, the largest quantum M&A transaction in history. The EQCC chip eliminates the optical tables, precision lasers and alignment systems that make conventional trapped ion systems difficult to scale and manufacture. By integrating qubit control electronics directly onto the trap chip using standard semiconductor processes, Oxford Ionics enabled IonQ to envision mass-manufacturing trapped ion processors at scale, a critical step toward commercially viable quantum computing. Eleqtron🇩🇪 Germany Hannover-based company developing microwave-driven trapped ion quantum computers, spun out of Leibniz University Hannover. CEO Professor Christian Ospelkaus. Avoids individual laser addressing of ions by using magnetic field gradients and globally applied microwave pulses, a fundamentally simpler approach that eliminates the complex optical systems required by competitors. Founded by Christian Ospelkaus and collaborators. Raised €10M in seed funding. Won a major contract from Germany’s Cyberagentur. The laser-free design could prove critical for scaling: individual laser addressing becomes exponentially harder as qubit counts grow, while microwave control scales naturally through chip-level integration. Qubitcore🇯🇵 Japan Spinout from the Okinawa Institute of Science and Technology (OIST) under CEO Dr. Manas Mukherjee, developing trapped ion quantum processors for Japan’s national quantum computing initiative. Draws on OIST’s leading atomic physics research, including advanced ion trap chip fabrication and high-fidelity gate operations. Funded under Japan’s ¥150B+ quantum technology investment programme. Japan currently trails the US, China and Europe in quantum hardware startups, making Qubitcore a strategically important player in building domestic quantum computing capability. EeroQ🇺🇸 US Chicago-based company under CEO Nick Farina pursuing one of the most unconventional qubit architectures in development: electrons floating on the surface of liquid helium. Each electron is trapped above the helium in a quantum state that can serve as a qubit, potentially offering extremely long coherence times because the helium surface is atomically smooth and free of defects that plague solid-state approaches. Founded by researchers from the University of Chicago and Argonne National Lab. Raised $7M+ in seed funding. Compatible with existing semiconductor manufacturing for control electronics. If the physics delivers on its promise, the approach could leapfrog conventional architectures in qubit quality. Quantum Art🇮🇱 Israel Israeli trapped-ion quantum computing company under CEO Dr. Tal David, spun out of Professor Roee Ozeri’s group at the Weizmann Institute of Science in 2022. Raised $124M total including a $100M Series A (December 2025) led by Bedford Ridge Capital with Battery Ventures, Destra Investments and Entrée Capital. Developing a proprietary multi-core architecture using reconfigurable trapped-ion chains with multi-qubit gates that compress complex operations into single steps. Demonstrated a 200-ion linear chain (July 2025), showcasing exceptional scalability and stability. Building Perspective, a 1,000-qubit multi-core system targeting quantum advantage, with a third-generation 2D architecture for thousands of qubits. Collaborating with NVIDIA CUDA-Q and Ayalon Highways on traffic optimisation. CTO Dr. Amit Ben-Kish, CSO Professor Roee Ozeri. 🟢 Neutral Atom QuEra, PASQAL, Atom Computing, Infleqtion and optical tweezer platforms QuEra Computing🇺🇸 US CEO Andy Ory. Raised $230M in Series B led by Google and SoftBank, bringing total funding above $300M. Emerged from Harvard/MIT research led by Mikhail Lukin and Markus Greiner. The 256-qubit Aquila system is available on Amazon Braket. Uses rubidium atoms held by optical tweezers that can dynamically reconfigure connections mid-computation, enabling error correction codes impossible on fixed-connectivity architectures. Published breakthrough Nature paper demonstrating 48 entangled logical qubits. Roadmap targets 10,000+ qubits by 2028 with early fault tolerance. Established a UK subsidiary and signed a partnership with Wellcome Sanger Institute for genomics applications. DARPA QBI finalist. Pasqal🇫🇷 France Reportedly raising €200M at above $1B valuation, Pasqal was founded by collaborators of Nobel laureate Alain Aspect and has grown into one of Europe’s leading neutral atom quantum computing companies. The platform uses rubidium atoms arranged in configurable two- and three-dimensional arrays, pursuing both analogue simulation and digital gate-based computation on the same hardware. The QUBEC platform automates quantum chemistry workflows for industrial partners. Following its merger with quantum software company Qu & Co in 2022, Pasqal deployed systems to the GENCI and Julich high-performance computing centres and built partnerships with BASF, Johnson & Johnson, BMW, Credit Agricole and Thales. Atom Computing🇺🇸 US Uses strontium atoms for potentially longer coherence times than the rubidium atoms used by most neutral atom competitors. Based in Berkeley, California, founded by CTO Dr. Ben Bloom (former JILA/NIST researcher, University of Colorado-Boulder PhD). CEO Rob Hays (former Intel VP and Lenovo Chief Strategy Officer) joined in 2021 to lead commercialisation. Raised $75M+ in venture funding. Partnered with Microsoft to demonstrate 24 entangled logical qubits, the largest such demonstration ever, now integrated into Azure Quantum as a commercial offering. The 1,225-site atom array demonstrated in 2023 was a landmark in scaling neutral atom systems. Strontium atoms offer nuclear spin qubits with coherence times exceeding seconds, and naturally occurring dual-species isotopes enable novel error correction approaches. DARPA Quantum Benchmarking Initiative participant. InfleqtionNYSE: INFQ🇺🇸 US Formerly ColdQuanta (founded by Dana Anderson, University of Colorado), rebranded in 2022 under CEO Scott Faris. Completed NYSE listing via $550M SPAC (ticker: INFQ). Headquartered in Boulder, Colorado with offices in Madison, Wisconsin and Oxford, UK. One of the broadest quantum platforms in the industry: computing, sensing and networking all built on cold atom technology. Products include atomic clocks delivering GPS-level timing without satellites, inertial sensors for GPS-denied navigation in contested environments, quantum RF receivers for electronic warfare signal detection, and scalable neutral atom quantum computing processors. Significant US government contracts across DARPA, DoD and intelligence community. Founded by Dana Anderson (University of Colorado). Total funding exceeds $200M including SPAC proceeds. Planqc🇩🇪 Germany Munich-based spinout from the Max Planck Institute of Quantum Optics (MPQ). CEO Alexander Glaetzle. Co-founded by Johannes Zeiher, Alexander Glaetzle and Sebastian Blatt. Raised €50M in Series A led by European deep-tech investors. Uses neutral atoms in optical lattices rather than optical tweezers, a fundamentally different trapping approach from QuEra and Pasqal. Optical lattices can naturally hold thousands of atoms in regular arrays, potentially offering a faster path to massive qubit counts. Plans to deliver systems with 1,000+ qubits. Partners with the German Aerospace Center (DLR) and Fraunhofer. Sits within Germany’s quantum computing cluster alongside IQM, Eleqtron and Kiutra. TMGcore/Atomica🇺🇸 US Developing neutral atom quantum computing systems under CEO Austin Mints, designed to slot into existing data centre infrastructure. Based in Plano, Texas. TMGcore’s background in immersion-cooled data centres gives them unique expertise in thermal management and rack-scale system design. The Atomica division combines this data centre engineering with neutral atom quantum processing, targeting enterprise and government customers who need quantum hardware that fits within their existing operational frameworks rather than requiring bespoke laboratory environments. QuandAi Building neutral atom quantum computing systems with a focus on practical commercial applications. Led by CEO Daniele Treppizzini. One of several companies betting on neutral atoms as the most scalable near-term path to large qubit counts, given that optical trapping can hold thousands of individual atoms in programmable arrays. The neutral atom modality has attracted significant venture capital in 2024-2025, with QuEra, Pasqal, Planqc and Infleqtion all raising major rounds, reflecting growing confidence that the technology can compete with superconducting and trapped ion approaches. 💡 Photonic Xanadu, PsiQuantum, ORCA and light-based quantum computing XanaduSPAC: XNDU🇨🇦 Canada Preparing for public listing via Crane Harbour Acquisition Corp SPAC at ~$3.6B enterprise value, which would make it the first pure-play photonic quantum IPO. Toronto-based, founded by CEO Christian Weedbrook. The Aurora processor uses measurement-based photonic quantum computing with time-domain multiplexing, potentially scaling to millions of qubits on a single chip. PennyLane, its open-source quantum ML library, has become one of the most popular quantum software frameworks globally with thousands of active users. Partnerships with NVIDIA (PennyLane-Lightning GPU integration) and BMW (production optimisation). Published landmark results in Nature demonstrating photonic quantum advantage. Rolls-Royce/Riverlane/Xanadu consortium won £400K Innovate UK grant for quantum jet engine modelling. PsiQuantum🇺🇸 US Raised $2.1B+ total including $1B Series E (BlackRock-led, September 2025) at $7B valuation. Participants: Temasek, Baillie Gifford, NVentures, QIA, Morgan Stanley. Omega chipset (Nature, February 2025) manufactured at GlobalFoundries Fab 8 on 300mm wafers. Integrates single-photon sources, superconducting detectors, and BTO electro-optic switches with 99.72% chip-to-chip interconnect fidelity over 250m. Building datacenter-scale Quantum Compute Centers in Brisbane ($940M Australian government backing) and Chicago. Launched Construct software platform. Collaborations: Airbus, Lockheed Martin, Boehringer Ingelheim. DARPA QBI finalist. Victor Peng appointed Interim CEO (February 2026), Jeremy O’Brien moved to Executive Chairman. Orca Computing🇬🇧 UK Led by CEO Richard Murray, ORCA develops compact, room-temperature photonic quantum processors from London, eliminating the dilution refrigerators needed by superconducting and trapped ion competitors that operate at millikelvin temperatures. ORCA uses proprietary quantum memories to synchronise photon arrival times, solving a fundamental challenge in photonic quantum computing. Founded by Ian Walmsley (former Oxford Clarendon Professor) and colleagues, ORCA raised $37M in Series B and expanded its NVIDIA NVQLink partnership in November 2025 for real-time quantum-classical connectivity. The PT Series processors fit on a single optical table, and the company holds contracts with the UK Ministry of Defence. ORCA also acquired generative AI startup Rahko. Room-temperature operation dramatically reduces system cost, power consumption and physical footprint compared to cryogenic competitors. Quandela🇫🇷 France French photonic company building deterministic single-photon sources based on semiconductor quantum dots under CEO Niccolo Somaschi, a critical component for photonic quantum computing. Based in Massy, near Paris. Founded in 2017 as a CNRS/C2N spinout. Raised €25M in Series A. Their quantum dot sources produce near-perfect single photons with world-leading indistinguishability (>99%), purity and brightness simultaneously. Provides MosaiQ, a full photonic quantum computing platform. Collaborating with OVHcloud for quantum cloud access. Photon quality directly determines computation fidelity; without reliable single-photon sources, photonic quantum computing cannot scale, making Quandela an essential supplier for every photonic quantum computing company. Quantum Source🇮🇱 Israel Founded by Professor Benny Dayan (Weizmann Institute), led by CEO Gil Semo. Raised $50M in Series A from Dell Technologies Capital, Eclipse Ventures and others. Israeli startup developing scalable photon sources for photonic quantum computing using a novel approach that combines semiconductor quantum dots with photonic integrated circuits. Addresses the fundamental bottleneck of generating millions of on-demand, high-quality, indistinguishable single photons required for fault-tolerant photonic quantum computation. Founded by Professor Benny Dayan from the Weizmann Institute of Science. Their hybrid approach could enable photon source arrays integrated directly onto photonic chips at semiconductor manufacturing scale. Rotonium🇮🇹 Italy Italian company under CEO Fabio Sciarrino (Professor, Universita La Sapienza) developing room-temperature photonic quantum processors using qudits, higher-dimensional quantum states that go beyond binary qubits. While most quantum computers encode information in two-level systems (0 and 1), Rotonium uses photonic states with multiple levels (0, 1, 2, 3…), encoding exponentially more information per carrier. This could dramatically reduce the total photon count and component complexity needed for useful computations. Founded by researchers from the Universita degli Studi di Bari. Room-temperature operation eliminates cryogenic infrastructure costs. Based in Italy’s quantum technology sector, supported by national and EU funding programmes. Arago Raised $26M in seed funding under CEO Anant Anandkumar for AI-enhanced photonic accelerators, one of the largest quantum seed rounds globally. Combines quantum photonic technology with machine learning to build computing systems specifically optimised for AI inference and training workloads. The approach bridges quantum and classical computing by using photonic circuits that can perform matrix multiplications, the core mathematical operation in neural networks, at the speed of light with minimal energy consumption. Targets the massive and growing market for AI compute infrastructure where energy costs and latency are becoming critical bottlenecks. Quix Quantum🇳🇱 Netherlands Builds the largest commercially available universal photonic quantum processors from Enschede, Netherlands, under CEO Stefan Hengesbach, using silicon nitride waveguide technology. Founded from the University of Twente’s MESA+ nanofabrication facilities. Their 20-mode processor enables Gaussian boson sampling, linear optical quantum computing experiments and quantum simulation. Raised €6M in Series A led by PhotonDelta. Silicon nitride photonics offers low loss and high stability, critical for maintaining quantum coherence across complex optical circuits. Provides systems to research institutions and commercial partners across Europe, serving as a key hardware supplier for photonic quantum computing labs and companies. Nu Quantum🇬🇧 UK Cambridge-based developer of quantum photonic networking components under CEO Carmen Palacios-Berraquero, including single-photon detectors and sources that operate at telecom wavelengths. Raised £8.5M in Series A. Spun out of the Cavendish Laboratory at the University of Cambridge. Technology enables quantum communications, distributed quantum computing and quantum networking between separate processors. Their single-photon detection technology achieves high efficiency at room temperature, eliminating the need for cryogenic cooling in the networking layer. Partners with BT and Toshiba. Member of the UK Quantum Communications Hub. Critical infrastructure for building quantum networks and ultimately the quantum internet. 🧲 Quantum Annealing D-Wave and annealing-based optimisation hardware D-Wave QuantumNYSE: QBTS🇨🇦 Canada The oldest pure-play quantum company (founded 1999) and first commercial supplier, led by CEO Dr. Alan Baratz. The Advantage2 processor exceeds 4,400 qubits with a Zephyr topology and 20-way connectivity, delivering 25,000x speedups on materials simulation benchmarks. FY 2024 bookings exceeded $23M, a 120% year-on-year increase, with roughly $304M in cash reserves. In January 2026 D-Wave completed its $550M acquisition of Quantum Circuits Inc., the Yale spinout co-founded by Rob Schoelkopf (inventor of the transmon qubit), making it the world’s first dual-platform quantum company spanning both annealing and gate-model architectures. QCI’s dual-rail qubits feature built-in error detection that converts noise into detectable erasure errors, and D-Wave plans to deliver an initial dual-rail gate-model system later in 2026 from a new R&D centre in New Haven. The stock surged more than 400% in twelve months. 🔮 Topological Microsoft and topological qubit research Microsoft Azure QuantumNASDAQ: MSFT🇺🇸 US Introduced Majorana 1 (February 2025) under quantum lead Krysta Svore, the first chip on a Topological Core using topoconductor materials. Topological qubits store information in the topology of the quantum state, naturally resistant to local perturbations. DARPA selected Microsoft for utility-scale development. Partnered with Atom Computing (24 entangled logical qubits, record) and Quantinuum (800x error reduction). June 2025: four-dimensional geometric codes for topological error correction. Azure Quantum provides cloud access to IonQ, Quantinuum, Rigetti, Atom Computing plus Q# tools. The longest-shot approach, but if it works, the path to millions of logical qubits shortens dramatically. 💎 Silicon Spin Qubits Intel, Diraq, Quobly and semiconductor-based spin qubits Quantum Motion🇬🇧 UK Delivered the first full-stack silicon CMOS quantum computer to the UK NQCC (September 2025) under CEO Dr. James Sheridan. Built on 300mm wafer process, integrating QPU, cryogenic control and dilution refrigerator into three server racks. Compatible with Qiskit and Cirq. October 2025: achieved single-shot spin readout within a standard 22nm IC. Demonstrates quantum processors can be mass-produced using conventional chip manufacturing. IntelNASDAQ: INTC🇺🇸 US Developing silicon spin qubits through its Tunnel Falls 12-qubit processor under quantum research lead Jim Clarke, manufactured on existing 300mm production fab lines at Intel’s Oregon facilities. Intel’s strategic bet: semiconductor manufacturing expertise built over five decades and $100B+ in fab infrastructure will prove decisive for quantum scaling. No startup can replicate Intel’s process control, yield optimisation and volume manufacturing capabilities. Also developing Horse Ridge cryogenic control electronics (fabricated on 22nm FinFET) that operate at 4K inside the cryostat, solving the wiring bottleneck. Quantum research led by Jim Clarke. Budget reportedly several hundred million dollars annually. The long game: if silicon spin qubits work at scale, Intel could manufacture them by the billion. Diraq🇦🇺 Australia Sydney-based company developing CMOS quantum dot processors, CEO Professor Andrew Dzurak, spun out of UNSW research, a pioneer in silicon-based quantum computing. Raised A$130M+ in funding from Quantonation, CSIRO, Pegasus and others. Uses standard semiconductor manufacturing to fabricate silicon quantum dots, each trapping a single electron whose spin encodes a qubit. Demonstrated the first two-qubit logic gate in silicon (2015), a milestone in the field. Targets billions of qubits on a single chip using existing foundry infrastructure. Partnered with GlobalFoundries for fabrication. The argument: silicon qubits are the only approach that can exploit the $500B+ semiconductor industry’s manufacturing ecosystem. Quantum Transistors🇮🇱 Israel Israeli startup under CEO Yonatan Cohen developing silicon-based quantum processors drawing on semiconductor fabrication expertise from the Technion. A bet that silicon spin qubits, manufactured using processes honed over decades in the classical chip industry, will ultimately win the scaling race to millions of qubits. Silicon spin qubits are the smallest qubit type (nanometre scale vs micrometre for superconducting), enabling far higher densities on a single chip. The challenge remains achieving consistently high gate fidelities across large arrays, but rapid progress across the field suggests solutions are within reach. Photonic Inc.🇨🇦 Canada Vancouver-based company under CEO Dr. Paul Terry developing a unique hybrid architecture: silicon spin qubits linked via optical photons using T-centre defects in silicon. Founded by Chief Quantum Officer Dr. Stephanie Simmons (Simon Fraser University). Raised $140M from Microsoft, British Columbia Investment Management Corp and other major investors. Selected for DARPA QBI Stage B in November 2025 with its Entanglement First architecture, validating the approach as a plausible path to a utility-scale quantum computer by 2033. Over 150 employees across Canada, US and UK. The T-centre approach is natively compatible with telecom-wavelength fibre optics, enabling distributed quantum computing across existing data centre and telecommunications infrastructure without wavelength conversion. Microsoft partnership integrates Photonic into the Azure Quantum ecosystem. Silicon Quantum Computing🇦🇺 Australia Founded and led by CEO Professor Michelle Simmons (2018 Australian of the Year), developing precision atom qubits in silicon at UNSW Sydney. Uses scanning tunnelling microscope (STM) lithography to place individual phosphorus atoms in silicon with atomic precision, creating the world’s most precisely engineered qubits. Advanced to DARPA QBI Stage B alongside only 10 other companies globally. Backed by Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO), Telstra, Commonwealth Bank of Australia and the Australian and New South Wales governments. Demonstrated the first integrated circuit manufactured at the atomic scale. The approach offers extremely long coherence times because phosphorus donor spins in isotopically purified silicon-28 are among the most stable qubit platforms known to physics. Quobly🇫🇷 France Grenoble-based silicon spin qubit company under CEO Maud Vinet developing quantum processors on standard 300mm FD-SOI semiconductor wafers, the same substrate used in billions of smartphones. Spun out of CEA-Leti and CNRS in 2022. Raised €40M+ including €19M record European seed round (2023) and €21M for its Q100T programme (2025) backed by Bpifrance’s France 2030 initiative. Exclusive partnership with STMicroelectronics for chip manufacturing. Q100T targets a 100-physical-qubit processor with production-readiness by 2027. SEALSQ announced a potential $200M acquisition (January 2026) to build secure silicon quantum systems. Board chaired by Philippe Delmas (former Airbus VP). Expanded to Sherbrooke, Quebec (January 2026) joining the DistriQ quantum hub and C2MI. Roadmap targets fault-tolerant universal quantum computer by 2032 using industrialised semiconductor processes. Archer MaterialsASX: AXE🇦🇺 Australia ASX-listed semiconductor company under CEO Dr. Mohammad Choucair developing the 12CQ (one-two-see-que) quantum chip, designed to enable quantum computing in mobile and portable devices. Uses carbon-based qubit material that maintains quantum coherence at room temperature in ambient conditions, eliminating the need for vacuum environments. Patents granted in the US, China, Japan, South Korea, UK, France, Germany and Australia. First Australian company to join IBM’s invite-only Quantum Network. First carbon-based qubit demonstrator targeted for 2026. $29M cash reserves, no debt. Fabricating nanodevices at advanced semiconductor facilities in Australia and Switzerland using foundry-compatible lithography processes. 🔬 Carbon Nanotube C12 Quantum Electronics and carbon-based qubits C12 Quantum Electronics🇫🇷 France Paris-based hardware company under CEO Pierre Desjardins developing quantum processors built from isotopically purified carbon-12 nanotubes, an ultra-clean material that minimises qubit decoherence. Spun out of the Physics Laboratory of the École Normale Supérieure, co-founded by twin brothers Pierre and Matthieu Desjardins (CTO). Raised €29M+ including €18M pre-Series A (2024) from Varsity Capital, EIC Fund, Verve Ventures, 360 Capital and Bpifrance. Operates an 800m² Quantum Fab in central Paris with cleanroom, cryostats and full-stack control for in-house processor fabrication. Carbon nanotubes suspended above silicon chips achieve record coherence times for solid-state spin qubits, validated in Nature Communications. Callisto quantum emulator available for algorithm development. 45 employees across 18 nationalities. 💠 Diamond NV Centre Quantum Brilliance, SaxonQ and nitrogen-vacancy centre processors Quantum Brilliance🇦🇺🇩🇪 Building diamond-based quantum processors that operate at room temperature under CEO Mark Luo, eliminating the need for dilution refrigerators, vacuum systems and complex laser setups. Nitrogen-vacancy (NV) centres in synthetic diamond serve as qubits, exploiting diamond’s extreme rigidity to suppress thermal decoherence naturally. Raised $40M+ including $20M Series A (2025). QB-QDK2.0 hybrid systems deployed at Oak Ridge National Laboratory (three units for molecular simulation research) and Fraunhofer IAF (Europe’s first room-temperature quantum accelerator, May 2025). Selected for Germany’s Cyberagency €35M portable quantum programme alongside ParityQC, targeting a transportable quantum computer for defence by 2027. Partnering with imec to integrate diamond into standard semiconductor fabrication. Offices in Canberra, Stuttgart and Tokyo. Roadmap targets 25-100 qubits on chip by 2026-2027 and lunchbox-scale fault-tolerant systems by the mid-2030s. QunaSys🇯🇵 Japan Tokyo-based quantum software company (formerly Quantum Native Systems) developing quantum computing algorithms for chemistry and materials science applications. Raised $29.7M from Global Brain, JIC Venture Growth, Mitsubishi Electric, Zeon Corporation and others. Collaborating with Osaka University and Fujitsu on quantum application development for Japan’s national quantum programme. QURI Parts library provides modular quantum algorithm components for variational quantum eigensolvers and molecular simulation. Japan’s leading quantum software company, connecting quantum hardware developed by Fujitsu/RIKEN with industrial chemistry applications. SaxonQ🇩🇪 Germany Leipzig-based quantum computing startup developing diamond NV-centre quantum processors that operate at room temperature, similar to Quantum Brilliance’s approach. Spun out of Leipzig University. Developing miniaturised quantum processors for integration into edge computing and industrial environments. Joins Germany’s quantum hardware cluster alongside Planqc, Eleqtron and the Forschungszentrum Jülich national laboratory. 💻 Quantum Software and Algorithms Frameworks, error correction, simulation and cloud platforms The Quantum Navigator software directory tracks hundreds of companies building the software layer. While hardware captures headlines and capital, the software layer will determine whether quantum computing delivers commercial value. Frameworks, Error Correction and Infrastructure Qedma🇮🇱 Israel Tel Aviv-based quantum error mitigation company under CEO Dr. Asif Sinay (Talpiot alumnus) developing software that enables quantum circuits up to 1,000 times larger to run accurately on today’s noisy hardware. Raised $26M Series A (July 2025) led by Glilot+ with IBM, Korea Investment Partners and TPY Capital. QESEM (Quantum Error Suppression and Error Mitigation) analyses noise patterns to suppress errors during execution and mitigate remaining errors in post-processing. Available through IBM’s Qiskit Functions Catalog. Co-founded by Professor Dorit Aharonov (Hebrew University, described as “quantum royalty”) and Professor Netanel Lindner (Technion). Hardware-agnostic, demonstrated on IBM and IonQ platforms. Collaborating with Japan’s RIKEN on quantum-supercomputer integration. 40 employees, growing to 60. Classiq🇮🇱 Israel High-level quantum circuit design platform under CEO Nir Minerbi that lets developers specify computational intent rather than gate-level implementation. The synthesis engine automatically generates optimised circuits from functional models, reducing months of manual circuit engineering to minutes. Raised $45M in Series B (2024). Partnerships with IonQ, IBM, Microsoft, AWS, NVIDIA and the Israeli Ministry of Defence. Backed by investors including Samsung NEXT and In-Q-Tel. Based in Tel Aviv. Mirrors the evolution from assembly to high-level programming in classical computing. As quantum processors scale to thousands of qubits, manually designing circuits becomes impossible, making Classiq‘s automated approach essential infrastructure for the industry. Riverlane🇬🇧 UK Building the operating system for fault-tolerant quantum computing under CEO Dr. Steve Brierley, focused entirely on error correction. Deltaflow 2 installed at Oak Ridge National Lab (September 2025), first dedicated real-time QEC integration at a US national lab. Raised £15M Series B (Molten Ventures, Cambridge Innovation Capital, NSSIF). Rolls-Royce/Riverlane/Xanadu won £400K for quantum jet engine modelling. Addresses the fundamental challenge of processing syndrome data fast enough to keep pace with quantum processors. Q-CTRL🇦🇺 Australia Quantum control infrastructure software under CEO Professor Michael Biercuk. Products: Fire Opal (circuit optimisation), Black Opal (education), Boulder Opal (control optimisation). Validated on IBM, Google, Rigetti. DARPA selected for $24.4M Robust Quantum Sensors contract (August 2025). Ironstone Opal (GPS-denied navigation) named TIME Best Invention 2025. Partnered with QUCAN for defence/aerospace quantum sensing. Critical infrastructure provider expanding from computing into sensing. SandboxAQ🇺🇸 US Spun out of Alphabet (2022) under CEO Jack Hidary, raised $300M+ (Google, NVIDIA, Salesforce, T. Rowe Price, Breyer Capital). Develops enterprise SaaS combining large quantitative models (LQMs) with AI. AQtive Guard provides post-quantum cryptographic migration. Also develops quantum simulation for drug discovery and materials science. One of the few quantum companies generating meaningful revenue today while waiting for hardware to mature. Mubadala Investment Company🇦🇪 UAE Abu Dhabi sovereign wealth fund managing $302B+ in assets with strategic quantum technology investments. Co-led IonQ’s $55M round alongside Samsung Catalyst Fund. Reflects the broader Gulf state push into quantum technology as a strategic national priority, alongside Qatar’s $1B Quantinuum joint venture and Saudi Arabia’s emerging quantum programme. The UAE’s Technology Innovation Institute (TII) has also established dedicated quantum research laboratories in Abu Dhabi, with Mubadala’s investment arm providing capital to promising quantum companies worldwide. Strangeworks🇺🇸 US Enterprise quantum computing platform headquartered in Austin, Texas, founded by CEO William Hurley (whurley). Hardware-agnostic access to multiple quantum backends and classical simulation tools through a unified interface. Raised $24M in Series A from Citigroup and industry investors. Strangeworks Ecosystem provides a marketplace of quantum applications, libraries and hardware options. Lowers the barrier to quantum adoption for enterprises by abstracting away hardware-specific complexity. Partnerships with IBM, Amazon Braket and IonQ. Focuses on making quantum computing accessible to organisations that lack dedicated quantum engineering teams. Zapata Quantum🇺🇸 US Originally founded by Harvard researchers including Christopher Savoie, Zapata went public via SPAC in 2024 (NYSE: ZPTA) but ceased operations in October 2024 after defaulting on financing obligations to Sandia Investment Management. Savoie resigned as CEO and nearly all employees were terminated. In 2025 the company reemerged as Zapata Quantum under CEO Sumit Kapur (former CFO), completing $3M in bridge financing and converting $10M+ of debt to equity. The restructuring preserved 50+ patents and IP developed over seven years. Now rebuilding operations and pursuing re-listing on a national exchange, targeting cryptography, pharmaceuticals and defence applications. Retains a role in DARPA’s Quantum Benchmarking Initiative. A cautionary tale in quantum SPAC valuations, though the reemergence signals continued belief in the underlying technology. QC Ware🇺🇸 US Quantum algorithm development and enterprise consulting firm, founded by CEO Matt Johnson and KP Prabhu (former SAP executive). Raised $33M in funding from In-Q-Tel, Citi and Samsung. Headquartered in