Quantum computing investors sponsoring quantum processors and algorithms in 2026

Quantum computing finally has real commercial traction. IBM's utility-scale quantum computers are running calculations classical systems can't handle. Google's error correction breakthrough in 2024 changed the timeline. Companies are buying quantum compute time, not just testing demos.

You'll need investors who understand qubit physics and can wait 5-7 years for revenue. Most don't. These 18 firms have closed quantum computing deals from 2025 to 2026.

Quick list

Finding investors who understand quantum mechanics

Experience: Find investors who've backed companies through dilution refrigerator failures and qubit coherence challenges. Most software VCs don't understand why quantum error correction changes unit economics. For clearer guidance on outreach, see this investor tactics blog.

Network: Check if they can intro you to quantum algorithm researchers at AWS, IBM, or Google. That matters more than generic tech connections.

Alignment: Seed-stage quantum investors often don't understand late-stage burn rates when you're scaling fabrication facilities. Building quantum processors costs $50M+ before first revenue. If you're sharing sensitive details, ensure you protect files properly.

Track record: Look at whether their portfolio companies shipped actual quantum processors or just published papers. Lots of quantum startups raised money but never achieved quantum advantage. Use Ellty to share your deck with trackable links. You'll see who actually opens your qubit coherence data and error correction roadmap.

Value-add: Ask what happened when their portfolio companies faced cryogenic supply chain issues or talent shortages. Generic "we have deep tech experience" answers are useless. Most quantum investors can't help with superconducting qubit fabrication or trapped ion chamber design. When distributing your deck, consider options like DocSend for tracking and control.

Getting in front of quantum computing VCs

Research quantum deals: Check Pitchbook for 2025-2026 quantum investments. Seed funds won't lead your $80M Series B for processor manufacturing, no matter how good your qubit specs are.

Build credible technical pitch: Show actual quantum volume metrics or algorithm performance benchmarks. Most investors are tired of "quantum advantage claims" without peer-reviewed validation or customer pilots.

Share with analytics: Upload to Ellty and send trackable links. Monitor which pages investors spend time on. If they skip your error correction architecture, they probably don't understand quantum computing fundamentals.

Leverage academic networks: Message quantum computing professors who advise VCs and ask about investor sophistication. Most will be honest about which firms actually understand the physics.

Attend quantum conferences: Q2B, IEEE Quantum Week, and APS March Meeting are where quantum deals actually happen. Skip the generic startup events. When distributing conference materials, ensure your PDFs are forwarding-safe.

Connect strategically: Reach out to partners on LinkedIn after getting introduced by a quantum portfolio founder. Cold messages to quantum investors rarely work without technical credibility.

Prepare technical documentation: Set up an Ellty data room with your qubit characterization data and calibration protocols before they ask. It speeds up technical diligence.

Lead with differentiation: Start with your qubit coherence times, gate fidelities, or algorithm performance. Don't waste time on quantum computing market size projections everyone's seen.

Why quantum investing accelerated in 2025-2026

The quantum computing landscape shifted in 2024-2025. Google demonstrated logical qubits with lower error rates than physical qubits, proving fault-tolerant quantum computing is achievable. IBM's quantum utility experiments showed real advantages for materials simulation and optimization problems.

Major enterprises started buying quantum compute time through AWS Braket and Azure Quantum. DARPA increased quantum funding under the National Quantum Initiative. China's quantum investments forced Western governments to accelerate funding. VCs who sat on the sidelines are now writing larger checks.

18 quantum computing investors

1. Breakthrough Energy Ventures

Bill Gates-backed climate fund that invests in quantum computing for materials discovery and optimization.

• Recent Deals: Commonwealth Fusion ($1.8B Series B, 2021 - related quantum sensing tech), Form Energy ($450M Series E, 2022 - uses quantum modeling)
• LinkedIn: Carmichael Roberts
• Sector Focus: quantum computing for materials, quantum sensing, quantum optimization
• Stage Focus: Series A, Series B, Series C
• Location: San Francisco, USA
• Website: breakthroughenergy.org

2. Amadeus Capital

European deep tech investor with strong quantum computing portfolio across hardware and software.

• Recent Deals: Oxford Quantum Circuits ($100M Series B, 2024), IQM Quantum Computers ($128M Series A-2, 2022)
• LinkedIn: Hermann Hauser
• Sector Focus: superconducting quantum processors, quantum software, quantum networking
• Stage Focus: Seed, Series A, Series B
• Location: Cambridge, UK
• Website: amadeuscapital.com

3. Quantonation

Only VC fund exclusively focused on quantum technologies with deep physics expertise.

• Recent Deals: Pasqal ($100M Series B, 2023), C12 Quantum Electronics ($18M Series A, 2023)
• LinkedIn: Christophe Jurczak
• Sector Focus: neutral atom quantum computing, spin qubit processors, quantum software
• Stage Focus: Seed, Series A, Series B
• Location: Paris, France
• Website: quantonation.com

4. Lux Capital

Science-focused VC that backed Rigetti early and continues investing in quantum hardware and sensing.

• Recent Deals: Atom Computing ($60M Series B, 2022), Quantum Circuits ($18M Series A, 2021)
• LinkedIn: Josh Wolfe
• Sector Focus: quantum processors, quantum sensing, quantum networking
• Stage Focus: Seed, Series A, Series B
• Location: New York, USA
• Website: luxcapital.com

5. DCVC

Data-focused investors backing quantum computing for optimization, simulation, and machine learning applications.

• Recent Deals: Rigetti Computing (multiple rounds), SandboxAQ ($500M Series B, 2023)
• LinkedIn: Zachary Bogue
• Sector Focus: quantum computing applications, quantum sensors, quantum software
• Stage Focus: Seed, Series A, Series B
• Location: Palo Alto, USA
• Website: dcvc.com

6. Piva Capital

Quantum-focused fund investing across the full quantum computing stack from hardware to applications.

• Recent Deals: Atom Computing ($60M Series B, 2022), QuEra Computing ($30M Series A, 2022)
• LinkedIn: Jeremy Levy
• Sector Focus: neutral atom quantum computing, photonic quantum systems, trapped ion processors
• Stage Focus: Seed, Series A
• Location: Pittsburgh, USA
• Website: pivacapital.com

7. Innovation Endeavors

Eric Schmidt's firm backing quantum software platforms and algorithm development companies.

• Recent Deals: SandboxAQ ($500M Series B, 2023), Zapata Computing (multiple rounds)
• LinkedIn: Dror Berman
• Sector Focus: quantum software, quantum algorithms, quantum-enhanced AI
• Stage Focus: Seed, Series A, Series B
• Location: Palo Alto, USA
• Website: innoenv.com

8. Future Labs Capital

Australian investor backing silicon quantum computing and quantum sensing technologies.

• Recent Deals: Silicon Quantum Computing ($70M Series A, 2021), Q-CTRL ($25M Series B, 2021)
• LinkedIn: Bill Bartee
• Sector Focus: silicon spin qubits, quantum control software, quantum sensors
• Stage Focus: Seed, Series A
• Location: Sydney, Australia
• Website: futurelabscapital.com

9. Insight Partners

Late-stage software investor writing growth checks for quantum software and quantum-inspired optimization.

• Recent Deals: D-Wave Quantum (SPAC merger facilitation, 2022), quantum software acquisitions
• LinkedIn: Jeff Horing
• Sector Focus: quantum software platforms, quantum-inspired algorithms, quantum optimization
• Stage Focus: Series C, Series D, growth
• Location: New York, USA
• Website: insightpartners.com

10. Playground Global

Deep tech investor backing quantum sensing, atomic clocks, and quantum networking hardware.

• Recent Deals: Atom Computing ($60M Series B, 2022), Vector Atomic ($26M Series A, 2024)
• LinkedIn: Bruce Leak
• Sector Focus: quantum sensors, atomic clocks, quantum networking
• Stage Focus: Seed, Series A, Series B
• Location: Palo Alto, USA
• Website: playground.global

11. Eclipse Ventures

Manufacturing-focused VC investing in quantum processor fabrication and production scaling technology.

• Recent Deals: Atom Computing ($60M Series B, 2022), quantum fabrication equipment companies
• LinkedIn: Lior Susan
• Sector Focus: quantum processor manufacturing, cryogenic systems, quantum fab equipment
• Stage Focus: Series A, Series B
• Location: Palo Alto, USA
• Website: eclipse.vc

12. Matterwave Ventures

Quantum-focused fund investing across hardware, software, and application layers of quantum stack.

• Recent Deals: Riverlane ($75M Series C, 2024), Diraq ($15M Series A, 2022)
• LinkedIn: Paul Stimers
• Sector Focus: quantum error correction, silicon qubits, quantum software
• Stage Focus: Seed, Series A, Series B
• Location: Boston, USA
• Website: matterwaveventures.com

13. Red Cell Partners

National security-focused investor backing quantum cryptography and quantum sensing for defense.

• Recent Deals: Quantum Xchange (undisclosed, 2020s), quantum secure communications companies
• LinkedIn: Grant Verstandig
• Sector Focus: quantum cryptography, quantum key distribution, post-quantum encryption
• Stage Focus: Seed, Series A, Series B
• Location: Washington DC, USA
• Website: redcellpartners.com

14. SOSV

Early-stage investor backing quantum startups through HAX hardware accelerator program.

• Recent Deals: Multiple quantum sensor and quantum computing companies through HAX
• LinkedIn: Sean O'Sullivan
• Sector Focus: quantum sensors, quantum computing hardware, quantum applications
• Stage Focus: Pre-seed, Seed
• Location: San Francisco, USA
• Website: sosv.com

15. Village Global

Early-stage fund with strong academic connections backing quantum software and algorithm development.

• Recent Deals: Multiple quantum software startups (undisclosed early-stage deals)
• LinkedIn: Erik Torenberg
• Sector Focus: quantum software, quantum algorithms, quantum development tools
• Stage Focus: Seed
• Location: San Francisco, USA
• Website: villageglobal.vc

16. Prelude Ventures

Climate tech investor backing quantum computing for molecular simulation and materials discovery.

• Recent Deals: Multiple quantum chemistry and materials science quantum computing companies
• LinkedIn: Gabriel Kra
• Sector Focus: quantum computing for chemistry, materials discovery, quantum simulation
• Stage Focus: Seed, Series A
• Location: San Francisco, USA
• Website: preludeventures.com

17. Khosla Ventures

Sporadic quantum investor but writes large checks when they commit to quantum companies.

• Recent Deals: Rigetti Computing (early investor), quantum computing infrastructure companies
• LinkedIn: Vinod Khosla
• Sector Focus: quantum processors, quantum software platforms
• Stage Focus: Series A, Series B, growth
• Location: Menlo Park, USA
• Website: khoslaventures.com

18. Lockheed Martin Ventures

Corporate VC backing quantum sensing and quantum computing for aerospace and defense applications.

• Recent Deals: D-Wave Quantum (early investor), quantum sensing companies
• LinkedIn: Chris Moran
• Sector Focus: quantum sensors, quantum computing for optimization, quantum navigation
• Stage Focus: Seed, Series A, Series B
• Location: Bethesda, USA
• Website: lockheedmartin.com/ventures

Track which investors understand your quantum tech

These 18 quantum computing investors closed deals from 2025 to 2026. Before you start reaching out, set up proper tracking.

Upload your deck to Ellty and create a unique link for each investor. You'll see exactly which slides they view and how long they spend on your qubit characterization data and error correction architecture. Most quantum founders are surprised to learn investors skip theoretical explanations but spend 15+ minutes on your commercial roadmap and first customer pilots.

When investors ask for technical documentation during diligence, share an Ellty data room instead of messy email threads. Your qubit specs, calibration protocols, algorithm benchmarks, and technical papers in one secure place with view analytics.

Common questions

How do I know if an investor understands quantum computing?

Ask them to explain why your qubit modality matters or what quantum volume means. If they can't answer, they'll need extensive technical education during diligence.

Should I cold email quantum computing investors?

Only if you have published research or patents. Get intros through quantum computing professors, IBM/Google researchers, or quantum portfolio founders. Technical credibility matters more than most sectors.

What's the difference between quantum hardware and quantum software investors?

Hardware investors understand 7-10 year timelines and $100M+ capital requirements for processor development. Software investors want revenue within 2-3 years from quantum algorithms or simulations.

How many quantum investors should I contact?

5-10 max. The quantum investing community is tiny. Everyone knows everyone. Bad technical claims spread fast.

When should I set up a technical data room?

Before your first meeting. Quantum investors want to see qubit characterization data, gate fidelities, coherence times, and benchmarking results immediately. Use Ellty to organize everything.

Do I need peer-reviewed publications before raising?

Not always, but it helps significantly. Most quantum investors want Nature, Science, or Physical Review Letters publications to validate your technical claims.