Top Quantum Computing Investors in 2026

Insider Brief

• The article examines the leading quantum computing investors in 2026, covering dedicated quantum funds, venture capital firms, corporate investors, sovereign funds, and government-backed investment programs.
• It outlines each investor’s investment focus, portfolio companies, preferred funding stage, and role in supporting quantum computing, sensing, communications, and enabling technologies.
• The article also discusses current quantum funding trends and provides guidance for startups seeking investment in the sector.

Quantum computing investment has moved through several distinct phases. The hype-driven cycle of 2018-2020, when capital flowed toward anything with “quantum” in the pitch, gave way to a more selective period in 2022-2024, when investors demanded evidence of technical progress.

Then came 2025. According to QED-C’s State of the Global Quantum Industry 2026 report, private venture capital in quantum reached $4.9 billion in 2025 – more than doubling the prior year’s record high, with US-headquartered companies alone raising more than $2.7 billion. Hardware development now dominates funding allocation, reversing the software-heavy pattern of 2023-2024. The market appears to be prioritizing companies with credible paths to fault tolerance over those with near-term software applications. 

Three events in 2025 illustrate how the landscape changed. In September, PsiQuantum raised $1 billion in a Series E led by BlackRock at a $7 billion valuation – the largest single private funding round in quantum computing history. That same month, NVIDIA’s venture arm NVentures invested in three quantum hardware companies within a single week –  Quantinuum, PsiQuantum, and QuEra, spanning all three major hardware modalities.

In 2026, the pattern started to recalibrate. The QED-C report projects the global quantum market is on track to double by 2028, reaching $3 billion in revenue. The mega-rounds that defined 2025 are giving way to a higher volume of mid-range raises, with more strategic investment from hyperscalers, defense primes, and industrial conglomerates. China’s Q1 2026 quantum investment nearly matched its full-year 2025 total, signaling that capital concentration in the US and Europe is no longer the whole story. 

The government is also moving from backstop to direct participant. On June 22, 2026, President Trump signed an executive order directing a new national quantum strategy, a federally backed quantum computer for scientific research, and agency-level PQC migration deadlines – the most expansive federal quantum policy action since the National Quantum Initiative Act of 2018. The DOE followed the next day with Quantum Genesis, targeting a fault-tolerant quantum computing capability by 2028. Earlier in May, the US government reported plans to award approximately $2 billion in grants and equity stakes to nine quantum companies, with IBM expected to receive around $1 billion.

This article profiles the investors behind that capital – dedicated quantum venture funds, corporate strategic investors, and government-backed programs – covering who they are, what they have backed, and what they are looking for.

Top Quantum Computing Investors

The following is a non-exhaustive selection. The landscape is broad and evolving rapidly, and the inclusion or omission of any investor should not be interpreted as a ranking or endorsement.

For each investor, only confirmed quantum portfolio companies are listed – portfolio links are provided where available for readers who want the full picture.

Quantonation

Quantonation closed its second fund above target at €220 million in February 2026, more than doubling its first €91 million vintage and becoming the largest dedicated quantum investment firm globally by assets under management. The Paris-based firm has backed 27 companies since 2018 through its first fund and has already deployed into 12 companies through Fund II, targeting a portfolio of approximately 25. Confirmed portfolio companies include PASQAL, Nord Quantique, Multiverse Computing, Diraq, and Pioniq. Limited partners include Vertex Holdings (Temasek), Bpifrance, the European Investment Fund, Novo Holdings, and Toshiba. Quantonation invests from pre-seed to Series A across quantum computing, sensing, communications, error correction, and enabling technologies.

For a complete portfolio overview, visit – quantonation.com/portfolio.  

55 North

55 North, headquartered in Copenhagen, announced a €134 million first close of its €300 million inaugural quantum technology fund in October 2025. Led by Managing Partner Owen Lozman alongside General Partners Helmut Katzgraber and Kai Hudek, the fund targets the full quantum value chain across computing, sensing, and communications. Approximately 75% of capital is directed toward European companies, with one quarter specifically targeting Nordic firms. Anchor investors include EIFO and Novo Holdings. 

For a complete portfolio overview, visit – https://www.55n.vc/#portfolio

Firgun Ventures

Firgun Ventures, launched in late 2025 from London, completed a $70 million first close backed by the Qatar Investment Authority, targeting $250 million for what it describes as the first VC fund focused on early growth-stage quantum technology companies. Firgun invests globally across quantum computing, sensing, communications, and applications in healthcare, climate, finance, and cybersecurity. Early investments include Photonic Inc. in Canada and Quantum Elements in the US. 

For a complete portfolio overview, visit – https://firgun.vc/portfolio

Quantum Coast Capital

Quantum Coast Capital (QCC), based in Palm Beach and founded in 2024, is one of a small number of US venture firms dedicated entirely to quantum investment. QCC targets early-stage quantum technology startups across the US and NATO countries, covering quantum computing, quantum-enabled technologies, AI, advanced sensors, networking, and post-quantum cybersecurity. In October 2025, QCC signed an MOU with the Florida Opportunity Fund to jointly identify and co-invest in quantum technology companies.

Quantum Exponential

Quantum Exponential Group (QEG) is the UK’s first specialist quantum technology investment company. In November 2025, QEG launched fundraising for a £100 million venture capital fund dedicated to UK quantum technologies, with approximately two-thirds directed toward UK-based companies. QEG has an existing track record managing a dedicated quantum portfolio with eight portfolio companies, all revenue generating, and has an MOU with the Harwell Quantum Cluster, home to the National Quantum Computing Centre. 

In-Q-Tel

In-Q-Tel has been backing quantum technologies as the US intelligence community’s primary quantum venture vehicle. In-Q-Tel invests without traditional VC exit pressure or timeline constraints, maintaining strategic focus on cryptography, quantum sensing, and national security applications. Confirmed portfolio companies include Quantum Brilliance (diamond-based room-temperature systems), Infleqtion, and Lightsynq (acquired by IonQ in June 2025).

For a complete portfolio overview, visit – https://www.iqt.org/portfolio

Lux Capital

Lux Capital invests in quantum through a fundamental physics-based company thesis, focusing on organizations with long commercialization timelines. Confirmed quantum portfolio companies include Rigetti Computing (seed through IPO). Lux’s patient capital structures supporting 10+ year development timelines position it for early-to-growth stage quantum ventures. 

For a complete portfolio overview, visit – https://www.luxcapital.com/companies

Playground Global

Playground Global, based in Palo Alto, specializes in early-stage deep-tech companies at the intersection of computation and the physical world. The firm’s quantum portfolio is anchored by PsiQuantum, which started at Playground’s warehouse with three employees before growing into one of the best-funded quantum companies globally. 

Playground closed its $475 million Fund IV in May 2026, bringing total assets under management to approximately $1.6 billion, with next-generation computing, including quantum hardware and superconducting systems – as one of its four investment pillars.

For a complete portfolio overview, visit – https://www.playground.vc/portfolio

Samsung Ventures

The Samsung Catalyst Fund (SCF), Samsung Electronics’ evergreen venture capital arm, has committed capital to quantum technologies with a thesis rooted in Samsung’s semiconductor and device physics expertise. SCF co-led IonQ’s $55 million funding round alongside Mubadala Capital in 2019. Samsung’s broader venture activity in quantum also includes Samsung Next’s participation in Classiq’s $110 million Series C in 2025. 

Robert Bosch VC

Robert Bosch Venture Capital invests in quantum computing with a focus on automotive, manufacturing, and IoT applications. Bosch’s industrial background positions it to evaluate quantum applications in sensor technology, optimization, and materials simulation. 

For a complete portfolio overview, visit –  https://bosch.ventures/portfolio/

Airbus Ventures

Airbus Ventures, headquartered in Silicon Valley with offices in Toulouse and Tokyo, funds quantum technologies with aerospace and defense applications. Confirmed quantum investments include IonQ, and Q-CTRL. Airbus also co-ran the Quantum Computing Challenge with BMW Group in 2024, attracting over 420 teams to develop quantum solutions for aviation and automotive applications including fuel cell catalyst simulation and logistics optimization. 

For a complete portfolio overview, visit –  https://www.airbusventures.vc/portfolio

Amadeus Capital Partners

Amadeus Capital Partners, founded in 1997 in Cambridge and London, has built one of the most consistent UK quantum portfolios among generalist deep-tech VCs.

Confirmed investments include Riverlane, planqc, Quantum Motion Technologies, and Nu Quantum. The firm also manages the Amadeus-Apex Technology Fund with Austria’s Apex Ventures for early-stage European deep tech including quantum. 

For a complete portfolio overview, visit – https://www.amadeuscapital.com/our-companies/

BMW i Ventures

BMW i Ventures, BMW Group’s independent venture capital fund based in Silicon Valley, invests around the future of mobility, energy, and AI. BMW’s quantum engagement operates primarily at the corporate level – the company expanded its multi-year quantum computing partnership with Quantinuum in May 2026 focused on materials science for advanced mobility, and co-ran the Quantum Computing Challenge with Airbus in 2024. 

For a complete portfolio overview, visit – https://www.bmwiventures.com/portfolio

Felicis Ventures

Felicis Ventures is an early backer of Rigetti Computing, having participated in an early funding round alongside Y Combinator. The firm’s quantum exposure is limited relative to dedicated quantum funds, but the early Rigetti position reflects Felicis’s willingness to back frontier technology companies at the earliest stage. 

For complete portfolio information, visit – https://www.felicis.com/portfolio

High-Tech Gründerfonds

High-Tech Gründerfonds (HTGF) is a Bonn-based seed investor backed by the German Federal Ministry for Economic Affairs, KfW Capital, and Fraunhofer-Gesellschaft, with approximately €1.4 billion under management across four funds since 2005. Confirmed quantum portfolio companies include Aegiq, Delft Circuits, HQS Quantum Simulations, Kiutra, and Pixel Photonics. HTGF’s LP structure, which includes major German industrial and public sector partners, positions it naturally within Germany’s domestic quantum supply chain ecosystem. 

For complete portfolio information, visit – https://www.htgf.de/portfolio/

Mubadala Investment Company

Mubadala, Abu Dhabi’s sovereign investment fund, has held a confirmed quantum position since co-leading IonQ’s $55 million funding round alongside Samsung Catalyst Fund in 2019 – one of the earliest major sovereign fund entries into quantum hardware. Mubadala’s long investment horizon and cross-sector portfolio across technology, life sciences, and infrastructure make it a natural fit for quantum companies operating on extended commercialization timelines.

For complete portfolio information, visit – https://www.mubadala.com/en/what-we-do/

Parkwalk Advisors

Parkwalk Advisors is a UK-based venture fund manager specializing in university spinouts, with £500 million in assets under management and a description of itself as the UK’s most active investor in the university spinout sector. The firm has been part of IP Group since 2017 and has close ties to Oxford, Cambridge, and Bristol – three of the UK’s primary quantum research institutions. Confirmed quantum portfolio companies include Oxford Quantum Circuits (OQC), Quantum Motion Technologies, Phasecraft, and Riverlane. 

For complete portfolio information, visit parkwalk.vc/portfolio. 

Prelude Ventures

Prelude Ventures is a San Francisco-based climate and deep-tech fund with a confirmed quantum position in Atom Computing, the neutral-atom hardware company that delivered the first 1,000+ qubit neutral-atom system and is partnering with Microsoft on Magne, an error-corrected system targeting commercial availability by end of 2026. Prelude’s focus on foundational technology with long development timelines positions it for the extended commercialization cycles typical of quantum hardware companies.

For complete portfolio information, visit – https://www.preludeventures.com/portfolio

SGInnovate

SGInnovate, Singapore’s government-backed deep-tech venture builder, invests in quantum technologies as part of Singapore’s national quantum strategy. Singapore’s Quantum Engineering Programme has committed S$23.5 million to national quantum platforms covering quantum computing, quantum-safe communications, and quantum device manufacturing. 

SGInnovate’s portfolio spans quantum computing, sensing, and communications, with confirmed investments including SpeQtral, the quantum communications startup developing satellite-based quantum key distribution. SGInnovate’s mandate emphasizes translating Singapore’s quantum research output into commercial ventures with Asia-Pacific market reach.

For complete portfolio information, visit – https://www.sginnovate.com/our-portfolio

Google Ventures (GV)

Google Ventures holds confirmed quantum positions in IonQ and QuEra Computing. Google Ventures operates independently from Google Quantum AI’s internal research program, giving Alphabet commercial equity exposure across trapped-ion and neutral-atom modalities alongside its internal superconducting work. 

For complete portfolio information, visit gv.com/portfolio. 

IBM Ventures

IBM Ventures invests in quantum startups that complement IBM Quantum’s platform and customer base. Confirmed portfolio companies include QEDMA (quantum error mitigation), QunaSys (quantum chemistry algorithms), and Strangeworks (quantum software platform). IBM Ventures typically invests at Series A and beyond in companies that integrate with IBM Quantum services and Qiskit. 

For complete portfolio information, visit ibm.com/ventures. 

Microsoft Ventures (M12)

Microsoft M12 invests in quantum companies aligned with Azure Quantum and Microsoft’s broader quantum strategy. Confirmed investments include PsiQuantum, which uses GlobalFoundries silicon photonic manufacturing to target million-qubit fault-tolerant systems. Microsoft also provides strategic backing for companies building on Azure Quantum, including 1QBit and Quantinuum through the Azure Quantum partnership. 

For complete portfolio information, visit m12.vc/portfolio. 

Amazon AWS

Amazon invested in IonQ as an early strategic investor, participating from early funding rounds through IonQ‘s public listing. Amazon’s quantum investment strategy is tied to its AWS Braket cloud platform, which provides quantum access across IonQ, Rigetti, D-Wave, and Oxford Quantum Circuits hardware. Companies in Amazon’s quantum orbit gain integration with classical cloud services including SageMaker and Lambda for hybrid quantum-classical workflows. 

For more information, visit aws.amazon.com/braket. 

Temasek

Temasek, Singapore’s sovereign wealth fund, has built quantum exposure through direct investments and fund commitments. Confirmed positions include co-leading PsiQuantum’s $1 billion Series E in September 2025 alongside BlackRock and Baillie Gifford, and limited partner commitments to Quantonation II through its Vertex Holdings subsidiary. 

For complete portfolio information, visit temasek.com.sg. 

SBI Investment

SBI Investment, the venture arm of Japan’s SBI Group, invests in quantum computing companies as part of Japan’s national technology strategy. Japan has allocated ¥1.05 trillion ($7 billion) for next-generation semiconductor and quantum computing research combined, with METI labeling 2025 as the “first year of quantum industrialization.” SBI has backed QunaSys, the Tokyo-based quantum chemistry and algorithm company. 

For complete portfolio information, visit https://www.sbinvestment.co.jp/en/portfolio/list/

Andreessen Horowitz (a16z)

Andreessen Horowitz has backed quantum computing through its confirmed investment in Rigetti Computing, participating in the superconducting hardware company’s Series A alongside Lux Capital and holding through Rigetti’s public listing. 

For complete portfolio information, visit a16z.com/portfolio. 

Investor Overview

Investor	Type	Geography	Stage Focus
Quantonation	Dedicated Quantum VC	France	Pre-seed to Series A
55 North	Dedicated Quantum VC	Denmark	Seed to growth
Firgun Ventures	Dedicated Quantum VC	UK/Global	Early growth (Series A-B)
Quantum Coast Capital	Dedicated Quantum VC	USA	Early stage
Quantum Exponential	Dedicated Quantum VC	UK	Early stage
In-Q-Tel	Government VC	USA	All stages
Lux Capital	VC	USA	Seed to growth
Playground Global	VC	USA	Seed to Series A
Andreessen Horowitz	VC	USA	Series A to growth
Felicis Ventures	VC	USA	Seed
Prelude Ventures	VC	USA	Seed to growth
Samsung Catalyst Fund	Corporate VC	South Korea	Series A+
Google Ventures (GV)	Corporate VC	USA	Series B+
IBM Ventures	Corporate VC	USA	Series A+
Microsoft M12	Corporate VC	USA	Series A+
Amazon	Corporate/Strategic	USA	Early to growth
Airbus Ventures	Corporate VC	USA/Europe	Early to growth
Robert Bosch VC	Corporate VC	Germany	Seed to Series A
BMW i Ventures	Corporate VC	USA	Strategic partnerships
Amadeus Capital Partners	VC	UK	Seed to Series C
Parkwalk Advisors	VC	UK	Seed to Series B
High-Tech Gründerfonds	VC	Germany	Seed
Temasek	Sovereign Fund	Singapore	Growth stage
Mubadala	Sovereign Fund	UAE	Growth stage
SGInnovate	Government VC	Singapore	Seed to Series A
SBI Investment	VC	Japan	Series A+

How to Pitch to Quantum Investors

Successful quantum pitches require clarity on three elements: technical differentiation, commercialization timeline, and team credibility.

On technical differentiation, investors expect specific metrics instead of general quantum advantage claims. Gate fidelities, coherence times, qubit counts against roadmap projections, and error rates relative to competing platforms are all expected. Vague claims signal inexperience.

On commercialization, a realistic path to revenue within three to seven years – through hardware sales, software licensing, or quantum services partnerships – is now a standard expectation. The 2025 funding surge did not abandon commercial rigor; it rewarded companies with credible fault-tolerance roadmaps paired with near-term revenue strategies.

On team, lead founders with either deep quantum physics research backgrounds or proven track records building hardware or software companies carry the most credibility. Corporate VCs particularly value prior exits or operational experience scaling deep-tech companies. Government investors prioritize scientific credibility and peer-recognized expertise.

Lastly, understanding which investor to approach matters as much as the pitch itself. VCs seeking seed-stage companies differ fundamentally from corporate venture arms seeking strategic alignment. Government funds prioritize national security and economic competitiveness. Approaching Google Ventures or IBM Ventures before reaching Series B with demonstrated technical validation is unlikely to be productive. For early-stage companies, dedicated quantum funds including Quantonation, 55 North, and Prelude Ventures – and government sources such as NSF SBIR grants, DARPA, and national quantum initiatives – are the more productive starting points.

Funding Trends

Early-stage quantum funding increasingly flows through government grants and academic spinout programs. Series A and B rounds are growing larger as companies scale hardware manufacturing and software platforms. Late-stage rounds now regularly involve corporate strategic investors alongside traditional growth equity. The next two to three years are expected to bring consolidation, with successful companies acquiring complementary teams and IP from earlier-stage competitors.

The most well-capitalized quantum companies in 2026 share a funding structure: government research grants providing patient capital for long-horizon work, venture capital for scaling and commercialization, and corporate partnerships providing market access and technical integration. Organizations that secure only one of these sources tend to be more exposed to timeline risk than those that have built across all three.

For additional context on quantum investment trends, see TQI’s coverage of global quantum funding, quantum computing companies worldwide, and quantum computing jobs and salaries in 2026.

Frequently Asked Questions

What is the difference between VC and corporate venture investing in quantum?

Dedicated VCs typically invest on 7-10 year cycles targeting venture-scale returns, with faster decision-making and broader portfolio network access. Corporate venture arms such as Google Ventures, IBM Ventures, Microsoft M12 – invest primarily for strategic fit with internal quantum programs. Corporate investors generally move more slowly, expect tighter integration with parent company technology, and tend to exit through acquisition or strategic partnership rather than IPO. 

For quantum startups, the distinction matters a lot – corporate VCs offer direct access to cloud infrastructure, enterprise customers, and hardware partnerships that dedicated funds cannot provide, but come with alignment requirements that may constrain a company’s strategic direction.

How much funding does a quantum startup typically need?

Quantum hardware companies are capital-intensive. Seed rounds in the sector now average approximately $10 million, up from around $2 million in 2018, reflecting the infrastructure costs involved in early-stage hardware development. Series A rounds typically fall in the $15-40 million range; Series B rounds have grown substantially and frequently exceed $50-100 million as companies scale manufacturing. 

Quantum software companies require less capital at early stages – Series A rounds in the $5-20 million range are common. Government grants through programs like NSF SBIR ($150K-$2M) and national quantum initiatives provide non-dilutive capital that can extend the runway without equity dilution. Most hardware companies typically raise three to four rounds over five to eight years before reaching meaningful revenue or acquisition.

What metrics do quantum investors focus on?

Hardware investors examine qubit count, gate fidelity, coherence times, and error rates against published roadmap projections. A company claiming a milestone without peer-reviewed or independently verified data carries less weight than one with published results. Software investors look at customer adoption, use case validation, and revenue traction – even early revenue signals product-market fit in a field where many companies have not crossed that threshold. Across both categories, investors expect to see credible near-term milestones: chip iterations, software releases, or customer pilots that demonstrate execution, not just research progress.

Should a quantum startup seek government funding or venture capital?

Both, where possible. Government grants fund fundamental research and long development timelines – typically five to ten years – without equity dilution. Venture capital funds commercialization, market entry, and scaling on shorter two to seven year horizons. The most well-capitalized quantum companies in 2026 include Atom Computing, PsiQuantum, Quantinuum – they have secured both simultaneously, using government funding for research and VC for commercialization.

Companies with long R&D timelines and applications in national security or defense tend to have more natural access to government programs. Companies targeting commercial markets first are better suited to venture capital as a primary source.