Top Diamond NV-Centre Quantum Computing Companies in 2026

Insider Brief

• This guide examines the state of diamond NV-centre quantum technology in 2026, highlighting leading companies, commercial applications, and the technology’s current maturity.
• Diamond NV technology has achieved the greatest commercial success in quantum sensing, while quantum computing applications remain at an earlier stage of development with limited qubit counts.
• The article profiles companies across quantum computing, sensing, materials, medical imaging, and precision timing, and compares the commercial outlook for each segment.

Most quantum computing discussions start with superconducting chips in dilution refrigerators, or ion traps in vacuum chambers the size of a washing machine. Diamond NV centers are a different story. The qubit is a defect in a carbon crystal. It runs at room temperature. It fits in your hand and in 2026, it is already shipping products to hospitals and semiconductor factories.

The two paths for diamond NV technology are not moving at the same speed. Sensing has moved into production while computing works at small qubit counts and has not yet demonstrated a clear route to scaling. Most of the commercial activity in 2026 is in sensing, and the funding is following it.

What a Nitrogen-Vacancy Center Is

A nitrogen-vacancy (NV) center forms when a nitrogen atom takes the place of a carbon atom in a diamond crystal, leaving a gap in the lattice alongside it. That defect creates a quantum system whose electron spins can be controlled with microwave radiation and read using light. But the same properties that make it useful for quantum computing also make it exceptionally sensitive as a sensor.

The headline engineering advantage is that NV centers operate at or near room temperature. Superconducting qubits require cooling to around 20 millikelvin, which demands dilution refrigerators costing $500K-$3 million. Trapped-ion systems require ultra-high vacuum chambers. Diamond NV systems eliminate both constraints. That simplification is what allows the technology to move into industrial and medical settings where cryogenic infrastructure is not practical.

The coherence times achievable in diamond also exceed what superconducting qubits typically reach by several orders of magnitude. For sensing applications, this means more time to accumulate signals. For computing, it means longer circuits before errors accumulate. Still, engineering and connecting more than a few dozen NV centers in a controllable way remains a genuine challenge. Current diamond NV quantum computers are measured in single digits to low tens of qubits. The relationship between qubit quality and system scale remains a key factor in determining where quantum systems can provide practical value.

Companies Working With Diamond NV-Centre Technology

The following is a non-exhaustive selection. The landscape is evolving rapidly, and the inclusion or omission of any company should not be interpreted as a ranking or endorsement. Furthermore, the entries span the full spectrum of commercial maturity – from companies with products in production deployment to early-stage research spinouts at pre-revenue stage..

Quantum Brilliance (Australia)

Quantum Brilliance, founded in 2019 and headquartered in Canberra with operations in Germany, is the most commercially advanced diamond NV quantum computing company. The company manufactures compact, room-temperature quantum accelerators and has deployed systems at supercomputing facilities including Oak Ridge National Laboratory in the US and Fraunhofer IAF in Germany, and at the Pawsey Supercomputing Centre in Australia. Its Quoll quantum computer was named one of TIME’s Best Inventions of 2025. 

In 2025, Quantum Brilliance opened the world’s first commercial Quantum Diamond Foundry in Melbourne to manufacture quantum-grade diamond at scale. Total funding raised is approximately $58 million, including a $20 million Series A in January 2025 backed by Main Sequence and In-Q-Tel. 

Element Six (UK)

Element Six, De Beers’ industrial diamond subsidiary, manufactures the synthetic diamond that most NV-center quantum companies use as their starting material. Without high-purity, isotopically controlled diamond, NV-center performance degrades significantly. Element Six’s DNV-B1 product line is the first commercially available quantum-grade diamond, with its DNV-B14 variant offering over ten times the NV spin center density of the original. 

The company operates manufacturing facilities in the UK, Ireland, Germany, South Africa, and the US, and works with AWS on quantum technology development. Element Six is infrastructure for the NV sector – its diamond quality determines what downstream companies can achieve. 

NVision (Germany)

NVision, founded in 2015 as a spinout from the University of Ulm, develops quantum-enhanced medical imaging technology. Its primary product is POLARIS, a hyperpolarization system that boosts MRI signal strength more than 10,000 times, enabling real-time metabolic imaging on standard MRI scanners. 

The technology uses parahydrogen-induced polarization and NV diamond techniques to make cell metabolism visible in ways conventional MRI cannot achieve. NVision has deployed POLARIS at Memorial Sloan Kettering Cancer Center and established a European research hub at the University of Cambridge in 2026, targeting liver cancer and multiple sclerosis applications. The company raised $30 million in a Series A led by Playground Global in 2023, followed by approximately $50 million Series B. 

Qnami (Switzerland)

Qnami, a Swiss company founded in 2017 as a spinout from the University of Basel, builds NV-center based scanning probe microscopes for nanoscale magnetic imaging. Its ProteusQ system is used by semiconductor manufacturers, materials science researchers, and magnetic storage companies to image magnetic fields at the nanometer scale – a capability no classical instrument can replicate. 

In May 2026, Qnami was acquired by Quantum Design International, a global scientific instrumentation company, marking its second quantum technology acquisition of 2026 following the NanoScience division of Oxford Instruments. 

QuantumDiamonds (Germany)

QuantumDiamonds, founded in 2022 as a spinout from the Technical University of Munich, develops Quantum Diamond Microscopy (QDM) systems for semiconductor chip inspection. Its systems use NV centers to map electrical current inside chip packages with micrometer precision, non-destructively and without opening the package, a capability that becomes essential as chips adopt increasingly complex 2.5D and 3D architectures.

According to the company, QuantumDiamonds has completed proof-of-concept projects with nine of the ten largest chip manufacturers in the world, with deployments in Europe and installations in the US and Taiwan in 2026. In July 2026, the company raised €91 million, consisting of €15 million in private equity led by World Fund and €76 million in EU Chips Act grants from the German federal government and the Free State of Bavaria. The first phase of a planned €152 million production facility in eastern Munich is expected to become operational later in 2026.

SBQuantum (Canada)

SBQuantum, a Canadian company founded in 2017 in Sherbrooke, Quebec, develops diamond magnetometers for navigation in GPS-denied environments, defense, and public safety applications. 

In March 2026, SBQuantum launched a diamond quantum magnetometer into orbit via SpaceX in partnership with Spire Global, as part of the US National Geospatial-Intelligence Agency’s MagQuest Challenge to develop new technologies for monitoring Earth’s magnetic field, a model that underpins navigation systems used worldwide.

The company has since opened a US subsidiary, Zero Drift Technologies, in Cambridge, Massachusetts to commercialize its sensors for the US defense market. SBQuantum’s sensors also have potential applications in magnetoencephalography, a method for detecting weak magnetic fields from neural activity, though the company’s primary commercial focus is navigation and security. 

Diatope (Germany)

Diatope, founded in 2021 as a spinout from the Institute for Quantum Optics at Ulm University, supplies engineered synthetic diamonds with controlled NV center properties to quantum technology companies. The company’s positioning, in its own words, is as “a key enabler helping our customers with reliable supply of tailored NV diamond.” Its work covers CVD diamond growth, ion implantation, and color center fabrication.

Customers include companies building quantum magnetometers, quantum sensors, and quantum computers. Diatope has delivered NV diamond material to the DLR Quantum Computing Initiative as part of the DiaQ project. 

SaxonQ (Germany)

SaxonQ, founded in 2021 as a spinout from the University of Leipzig, develops mobile NV diamond quantum computers designed for room-temperature industrial deployment. Its systems run from a standard wall outlet without cryogenic infrastructure. In April 2026, SaxonQ unveiled its QC2026 Dual Core at Hannover Messe, a third-generation system featuring two parallel NV diamond processors at 5 qubits per core, the first mobile dual-core quantum computer publicly demonstrated under operating conditions. 

Fraunhofer IWU in Dresden has deployed a SaxonQ system for its own research projects, and Bechtle’s Quantum Technologies Center of Excellence in Bonn is also using the system. TGFS (Technology Start-up Fund Saxony) invested a seven-figure sum in November 2025. 

XeedQ (Germany)

XeedQ, founded in 2021 and based in Leipzig with R&D operations in Ulm, develops diamond NV-center quantum computers for room-temperature operation in office and industrial environments. Its XQ series, including the five-qubit XQ1 system marketed as “Baby Diamond,” is designed to be mobile, energy-efficient, and operable without cryogenic infrastructure. In December 2022, XeedQ was awarded a €30 million grant by the DLR Quantum Computing Initiative to develop a scalable, fault-tolerant 32-qubit NV diamond quantum computer by 2026.

A prototype has been delivered to DLR. In 2024, XeedQ installed its Baby Diamond system at Goethe University Frankfurt, the first deployment of an NV-center quantum computer at a German university. The company is also coordinating the TruQuaC consortium, a €3.06 million German federally funded distributed quantum computing project running June 2026 through May 2029.

Adamant Quanta (Sweden) 

Adamant Quanta, founded in 2022 and headquartered in Lund, Sweden, develops diamond-based chip-scale atomic clocks and precision timing components for navigation, communications, and metrology applications. Its flagship product is a chip-scale atomic clock that uses diamond crystal defects as the frequency reference, offering timing holdover performance in a compact, rugged package suited for GPS-denied environments.

The company raised SEK 9.2 million in 2023 from Industrifonden, Almi Invest, and Navigare Ventures to scale product delivery. Adamant Quanta targets positioning, navigation, and timing (PNT) applications in defence, aerospace, and telecommunications, where compact and resilient alternatives to GPS-dependent timing are in active demand.

Comparison Table: Diamond NV Companies

Sensing vs. Computing: Where Diamond NV Stands in 2026

The clearest distinction in diamond NV technology is between sensing and computing, and the two tracks have different commercial trajectories.

Quantum sensing with NV centers is already generating revenue. Magnetometers, nanoscale imaging instruments, and hyperpolarization MRI systems based on NV technology are in production use at semiconductor fabs, research institutions, and hospitals. The advantage over classical sensors is measurable, the hardware is manufacturable, and the cost proposition is clear. Companies like Qnami, QuantumDiamonds, and NVision are past the research stage.

Quantum computing with NV centers is a different story. The room-temperature advantage is real, but qubit counts remain low, gate fidelities are still below what fault-tolerant computing requires, and the path to scaling beyond a few dozen qubits remains an engineering challenge. Quantum Brilliance has demonstrated the most progress here – deployed systems at major supercomputing facilities and a foundry for manufacturing quantum-grade diamond at scale. But no NV-based quantum computer has demonstrated advantage over classical computers or over superconducting alternatives on a practical problem.

The most likely near-term trajectory is that NV technology continues to lead commercially in sensing while computing applications develop more slowly. The two tracks complement each other: the same diamond fabrication and NV control expertise that enables better sensors also improves qubits.

For now, diamond NV is doing what diamonds do best – holding its value where it counts, and taking its time everywhere else.

For readers looking to explore further, the following posts are good options: quantum chip companies in 2026, trapped-ion quantum computing companies, and quantum computing companies in Germany. 

Frequently Asked Questions

Is diamond NV quantum sensing commercially available?

Yes. NV-based quantum magnetometers and diamond-based atomic clocks are in active commercial use. QuantumDiamonds has completed proof-of-concept deployments at major semiconductor manufacturers. NVision’s POLARIS platform is installed at cancer research institutions including Memorial Sloan Kettering. Adamant Quanta is targeting commercial delivery of chip-scale diamond atomic clocks for navigation and timing. Several of these products are past the research stage and in active deployment, with commercial revenue growing across the sector.

How much does a diamond NV quantum computer cost?

Quantum Brilliance’s portable systems are reportedly priced under $500K, significantly below the $500K-$3 million cost of a dilution refrigerator and the additional cryogenic infrastructure required by superconducting systems. Smaller NV systems from XeedQ are aimed at early adopters and priced for accessible deployment in office and industrial environments, though specific pricing is not publicly disclosed. Room-temperature operation removes the largest infrastructure cost in quantum computing, which changes the total cost of ownership calculation considerably even where capital costs are comparable.

Which problems are diamond NV quantum computers best suited for?

Quantum simulation of molecular and materials systems is the primary use case, where NV coherence times allow simulating longer quantum dynamics than superconducting systems can sustain before errors accumulate. Optimization problems that exploit NV qubit connectivity are a secondary area. Sensing applications, including magnetometry, precision timing, and navigation, are already proven and commercial. General-purpose quantum algorithms that depend on large qubit counts and deep circuit execution (Shor’s algorithm, surface code error correction) are not a realistic near-term target for NV computing systems.

Will diamond NV computing eventually compete with superconducting systems?

Unlikely as a general-purpose platform. Superconducting systems have a multi-year lead in qubit counts, investment, and industry backing from IBM, Google, and others. NV computing is more likely to occupy a durable niche: useful where room-temperature operation, portability, and specific coherence properties matter more than raw qubit scale. The more probable outcome is multiple platforms coexisting for different workloads, with superconducting for general computation, NV for sensing and simulation, trapped ions for high-fidelity operations, and photonics for networking, rather than a single dominant architecture.