Top Deep Tech Investors
Founders Fund tops mid-2026's list with roughly $20 billion behind frontier bets from SpaceX to Anduril. Firms are ranked by capital committed to deep-tech strategies, not general tech exposure.
Largest deep-tech platform: Founders Fund (~$20B est.) · Flagship Pioneering: $14B AUM after a $3.6B raise · Deep tech's share of global VC funding in 2025: over 20% (BCG)
Deep tech is capital for companies built on hard science and engineering risk: fusion, space, robotics, semiconductors, and engineered biology, where the technical milestone matters as much as the market. This ranking orders firms by capital committed to deep-tech strategies, not by general technology exposure or headline AUM. Founders Fund leads with an estimated $20 billion or more under management behind SpaceX, Anduril, Palantir, and Neuralink; the firm closed a roughly $4.6 billion third growth fund and is targeting a larger successor, per its fund announcements. Khosla Ventures follows at roughly $15 billion, with fusion developer Commonwealth Fusion Systems in the portfolio and about $3.5 billion in new seed, core, and growth funds being raised. Flagship Pioneering ranks third at $14 billion; the Cambridge firm that originated Moderna raised $3.6 billion in its latest capital campaign. ARCH Venture Partners and Eclipse complete the top five.
The deep-tech label stretches across two kinds of firm, and the ranking deliberately holds both. Multi-strategy investors such as Founders Fund, Khosla, and Bessemer carry large deep-tech books inside broader portfolios, while the pure specialists run smaller but fully dedicated pools: Lux Capital closed its largest-ever fund at $1.5 billion and now manages $7 billion with a team of 44, Eclipse raised $1.3 billion across two vehicles for industrial technology, and DCVC keeps roughly $4 billion pointed at computational deep tech. Below them sits a bench of scientific-origin funds. Playground Global closed a $475 million Fund IV for hardware and compute, and MIT-born Engine Ventures passed $1.1 billion after a $398 million third fund. Committed capital, dry powder, and invested assets blur together in public figures, so the ordering reflects scale and focus rather than an audited league table.
The sector's share of venture capital keeps climbing. Deep tech claimed more than 20 percent of global VC funding in 2025, per BCG, with estimates of the total ranging from about $48 billion to more than $170 billion depending on how broadly the category is defined. Europe is an increasing part of the story: European deep-tech funding reached an all-time high of $20.3 billion, about 32 percent of all European venture capital. That flow shows up down this list, from Air Street Capital's $232 million third fund in London to Radical Ventures' growth past $2.5 billion in Toronto with CPP Investments among its backers. Deep tech is no longer a specialist corner of venture; it is where much of the largest new capital formation now happens. Every firm below links to its Altss profile, covering funds, leadership, and portfolio activity.
Top Deep Tech Investors: by the numbers
- Founders Fund manages an estimated $20 billion or more; its roughly $4.6 billion third growth fund has closed and a larger successor is in the market, per the firm's fund announcements.
- Khosla Ventures runs roughly $15 billion and is targeting about $3.5 billion across new seed, core, and growth funds.
- Flagship Pioneering reached $14 billion in AUM after raising $3.6 billion, per the firm's announcement.
- Lux Capital closed its largest fund, Lux Ventures IX, at $1.5 billion and manages $7 billion, per the firm.
- Deep tech claimed more than 20 percent of global VC funding in 2025, per BCG.
- European deep-tech funding hit an all-time high of $20.3 billion, about 32 percent of all European venture capital.
Top Deep Tech Investors
mid-2026 (Q2-Q3 reporting window)
Firms are ordered by reported or estimated capital committed to deep-tech, frontier, and hard-science strategies, favoring firm disclosures and fund closes over headline AUM. Pure specialists and multi-strategy firms with large deep-tech books appear side by side; the notes distinguish them.
| # | Firm | Scale | Headquarters |
|---|---|---|---|
| 1 | Founders FundMulti-stage frontier tech investor (SpaceX, Anduril, Palantir, Neuralink); closed large growth vehicles including a roughly $4.6B Growth III and is targeting a larger Growth IV; a generalist-leaning platform with a heavily deep-tech portfolio. | ~$20B+ (est.) | San Francisco, USA |
| 2 | Khosla VenturesAudacious deep tech (fusion, climate, AI infra, biotech); targeting ~$3.5B across new seed/core/growth funds. Portfolio includes Commonwealth Fusion Systems. | ~$15-16B | Menlo Park, USA |
| 3 | Flagship PioneeringBio-platform / deep science company creator (Moderna originator); raised $3.6B to reach $14B AUM / $10.9B capital pool. Pure deep-tech biotech focus. | $14B | Cambridge, USA |
| 4 | ARCH Venture PartnersEarly-stage life sciences / physical sciences deep tech specialist; Fund XIII >$3B (2024). Heavy biotech and science focus. | ~$10-12B | Chicago, USA |
| 5 | EclipsePhysical industries / industrial deep tech (robotics, manufacturing, energy); raised $1.3B (Fund VI $720M + Early Growth III $591M) bringing AUM to ~$10B. | ~$10B | Palo Alto / multi-office, USA |
| 6 | Lux CapitalPure deep-tech / frontier science (AI infra, defense, biotech, space); closed largest fund Lux Ventures IX at $1.5B; 44 people manage $7B. | $7B | New York / Menlo Park, USA |
| 7 | 8VCTech + bio-sciences / industrial / national capability focus; Fund VI $998M (2025), subsequent larger closes pushing past $6B; strong deep-tech exposure. | ~$6-7B+ | Austin, USA |
| 8 | Bessemer Venture PartnersMulti-stage generalist with a dedicated deep-tech and defense roadmap and portfolio, Rocket Lab among them; publishes State of Deep Tech and the XB100; a multi-strategy platform rather than a dedicated deep-tech fund. | ~$20B total (significant deep-tech allocation) | Menlo Park / multi, USA |
| 9 | DCVCPure deep-tech (compute, energy, defense, bio); DCVC Bio III $400M; portfolio raises nearly $2B in Q4 2025 alone; publishes annual Deep Tech Opportunities Report. | ~$4B | Palo Alto, USA |
| 10 | Prime Movers LabBreakthrough science commercialization (energy, transport, space, manufacturing); early-stage + growth funds totaling >$1.2B historically, now ~$2.5B AUM; portfolio Boom, Axiom. | ~$2.5B | Jackson / multi, USA |
| 11 | Radical VenturesAI / deep-tech focused; grew to >US$2.5B AUM with major LPs like CPP; large AI-exclusive early-stage funds + growth vehicle. | ~$2.5B | Toronto, Canada |
| 12 | Two Sigma Ventures (now Deviation Capital spinout)Quant and deep-tech crossover spanning data, AI, and bio; spun out managing ~$2B AUM and now operates as an independent firm. | ~$2B | New York, USA |
| 13 | Playground GlobalPure early-stage deep tech / hardware / compute (Andy Rubin et al.); closed Fund IV $475M (total capital raised since inception ~$1.7B). | ~$1.7B total raised / ~$1.2B+ AUM | Palo Alto, USA |
| 14 | Innovation EndeavorsTechnical frontier / deep tech (Eric Schmidt co-founded); largest Fund V $630M for science/tech visionaries. Exact total AUM less transparent. | ~$2B+ est. (Fund V $630M) | Palo Alto / multi, USA |
| 15 | The Engine / Engine Ventures (MIT)Tough tech / lab-to-market (MIT-origin); Fund III $398M bringing AUM >$1B / $1.1B. Provides lab infrastructure. | $1.1B | Cambridge, USA |
| 16 | Breakthrough Energy VenturesClimate / energy deep tech (Bill Gates-led); Fund III ~$839M; multi-fund total $3B+. Strategic climate focus. | ~$3B+ | USA (global) |
| 17 | In-Q-Tel (IQT)Strategic nonprofit VC for US intelligence and national-security dual-use technology; government-funded, without traditional AUM; a strategic investor rather than a commercial fund. | ~$0.5-1B+ assets / strategic capital | Tysons / Virginia, USA |
| 18 | Air Street CapitalAI-first / deep tech specialist (solo GP model); Fund III $232M bringing AUM ~$400M. Europe-focused AI deep tech. | ~$400M | London, UK |
No authoritative league table of deep-tech capital exists. This list mixes pure specialists such as Lux, DCVC, Playground, Flagship, and Engine Ventures with multi-strategy firms carrying large deep-tech books, and public AUM figures lag fund closes, blend dry powder with invested assets, or reflect total raised rather than current value. Strategic entities such as In-Q-Tel and Breakthrough Energy Ventures differ in mandate and capital structure. Scope favors US and European frontier, hard-tech, and biotech investors.
How the list is ordered
Ordering follows reported or estimated firm-level capital committed to deep-tech, frontier, hard-tech, and scientific strategies, preferring firm disclosures and fund closes to secondary estimates.
Comparability has limits: pure specialists sit beside multi-strategy firms with significant deep-tech allocations, public AUM updates lag fund closes, and several figures include growth vehicles or broader technology holdings rather than strictly deep-tech capital.
Top Deep Tech Investors — common questions
What is the largest deep tech investment firm?
What actually counts as deep tech?
Is Flagship Pioneering a venture firm or a company creator?
Why do In-Q-Tel and Breakthrough Energy Ventures appear here?
The full picture, firm by firm
Altss keeps a live profile on each investor above, from fund closes to team moves, alongside coverage of 30,000+ institutional investors, RIAs, and family offices.