The most active deep tech startup investors
212 investors hold three or more deep tech startups each, 837 portfolio startups in all. The most active here are Plug and Play (51), Techstars (49) and Y Combinator (34). 42 of them are accelerators.
Investors by their portfolio companiesRebuilt 7 Nov 2026
investors
212
portfolio startups
837
of them raised in 12 months
4
accelerators
42
Investors backing startups worldwide
| Investor | Startups here | Portfolio rounds, 12 mo | Latest activity |
|---|---|---|---|
 Plug and PlayAccelerator · United States · Multiverse Computing, EneCoat Technologies, TopoLogic | 51 | 155 | Nov 2026 |
 TechstarsAccelerator · United States · Kyoto Fusioneering, Mast Reforestation, Derq | 49 | 97 | Oct 2026 |
 Y CombinatorAccelerator · United States · REGENT, Andromeda Surgical, Rigetti Computing | 34 | 254 | Oct 2026 |
| HHelmholtzAccelerator · Germany · AeroDesignWorks, Panosome, 6221 421620Additional legal info European Plasmid Repository GmbH | 18 | 9 | Oct 2026 |
 QuantonationVenture capital · France · Quandela, Multiverse Computing, Pasqal | 18 | 8 | Aug 2026 |
 Lowercarbon CapitalVenture capital · United States · Living Carbon, Remora, Commonwealth Fusion Systems | 16 | 16 | Sep 2026 |
 ForesightAccelerator · Canada · Momentenergy, Sawback Technologies Inc., Muddy River Technologies | 15 | 4 | Sep 2026 |
 High-Tech GründerfondsAccelerator · Germany · kiutra, Gilytics, Tubulis | 14 | 47 | Nov 2026 |
 Global BrainVenture capital · Japan · REGENT, Commonwealth Fusion Systems, EneCoat Technologies | 14 | 30 | Oct 2026 |
 AudaciaVenture capital · France · Quandela, Multiverse Computing, Nord Quantique | 14 | 5 | Aug 2026 |
| PParkwalk AdvisorsVenture capital · Quantum Motion, Riverlane, Phasecraft | 13 | 58 | Oct 2026 |
 SOSVAccelerator · United States · Mesa Quantum, OneSkin, Clarity | 13 | 37 | Nov 2026 |
 DCVCVenture capital · United States · Kairos Power, REGENT, Q-CTRL | 13 | 27 | Nov 2026 |
 YES!DelftAccelerator · Netherlands · Qblox, VSParticle, Single Quantum | 13 | 3 | Jun 2026 |
 Future Planet CapitalVenture capital · United Kingdom · REGENT, UK Research and Innovation, 44.01 | 12 | 39 | Sep 2026 |
 Elemental ImpactAccelerator · United States · Mast Reforestation, Vibrant Planet, Fervo Energy | 12 | 11 | Sep 2026 |
| KKAUSTAccelerator · Saudi Arabia · Pasqal, Equal1, ATLANT 3D | 12 | 4 | Jul 2026 |
 SFC CapitalVenture capital · United Kingdom · Europlanet, UK Research and Innovation, Phyta Biodesign | 11 | 81 | Oct 2026 |
 Entrepreneur FirstAccelerator · United Kingdom · Polymerize, Atomionics, Entropica Labs | 11 | 58 | Oct 2026 |
 500 GlobalAccelerator · United States · Seventhsense, Atomionics, Briza | 10 | 35 | Oct 2026 |
 EndeavorAccelerator · United States · Meta Materials, Ecocoast, XOCEAN | 9 | 55 | Oct 2026 |
 Hub71Accelerator · United Arab Emirates · Vesta /, 44.01, AIRMO | 9 | 18 | Oct 2026 |
 Toyota VenturesVenture capital · United States · Living Carbon, Arcturus, Haiqu | 9 | 17 | Oct 2026 |
 Aramco VenturesVenture capital · Saudi Arabia · Carbon Clean, SLB, Spiritus | 9 | 9 | Aug 2026 |
 Oxford Science EnterprisesAccelerator · United Kingdom · Quantum Motion, PQShield, ORCA Computing | 8 | 42 | Nov 2026 |
 CDP Venture CapitalAccelerator · Italy · Multiverse Computing, Phononic Vibes S.r.l, Deep Ocean Capital | 8 | 4 | Oct 2026 |
 Graycliff PartnersPrivate equity · United States · Fulham, 2026 VLS Environmental Solutions, LLC, MakoRabco | 8 | – | – |
 FACITAccelerator · Canada · University of Waterloo, McMaster University, Sunnybrook Health Sciences Centre | 8 | – | – |
 Lightspeed Venture PartnersVenture capital · United States · Discovered Materials, Supercritical, Helion Energy | 7 | 85 | Nov 2026 |
 AntlerAccelerator · Singapore · Klimate, QMill, Shapemaker | 7 | 53 | Nov 2026 |
 BGFVenture capital · United Kingdom · OrganOx, Nuada, Mach42 | 7 | 52 | Nov 2026 |
 Battery VenturesVenture capital · United States · Quantum Machines, Octave, LI-COR | 7 | 35 | Sep 2026 |
 One Planet Capital LimitedVenture capital · United Kingdom · Earthly, Lineat Seed, Clear Waste Route | 7 | 28 | Sep 2026 |
 RedstoneVenture capital · Germany · QphoX, Renewabl, Multiverse Computing | 7 | 16 | Sep 2026 |
 Space CapitalVenture capital · United States · Matidor, Panthalassa, SpeQtral | 7 | 13 | Oct 2026 |
 Clean Energy VenturesVenture capital · United States · SABIC, MassCEC, Nth Cycle | 7 | 10 | Oct 2026 |
 Nucleation CapitalVenture capital · Atomic Insights, Focused Energy, CORE POWER | 7 | 6 | Sep 2026 |
 BRYCK Startup AllianceAccelerator · Germany · SaferPlaces, ICODOS, HalioGen Power | 7 | 4 | Jan 2026 |
 New Mountain CapitalPrivate equity · United States · Pearce Services, 3E, TRC Companies | 7 | 2 | Sep 2026 |
 General CatalystVenture capital · United States · SAIC, Lila Sciences, Oratomic | 6 | 122 | Nov 2026 |
The most backed startups worldwide
REGENT
Commonwealth Fusion Systems
Rigetti Computing
planqc
Kyoto Fusioneering
HQS Quantum Simulations
Panthalassa
AIRMO
Supercritical Solutions
Multiverse Computing
Quantum Motion
Living Carbon
Helion Energy
Pacific FusionRaising a round?
Tell us about your startup once: Alion matches it to the investors that back companies like it and tells you when a fund starts backing startups in .
Questions
Who invests in deep tech startups?
212 investors hold three or more deep tech startups each, 837 portfolio startups in all. The most active here are Plug and Play (51), Techstars (49) and Y Combinator (34). 42 of them are accelerators.
How is this list built?
From what each investor holds: the portfolio page it publishes, the Y Combinator directory and the announced rounds that name it. An investor counts for a sector when at least three of its portfolio companies are based there; the list is rebuilt every night from 2,414 portfolios.
Source: investors' portfolio pages and announced rounds, 2,414 portfoliosUpdated 7 Nov 2026MethodologyJSONCC BY-SA 4.0