Co-investors · Accelerator · United States

Who invests with Cleantech Open

21 investors have backed two or more of the 99 startups Cleantech Open has backed in rounds we track. Grouped by kind, each ranked by how many of these startups it shares; National Science Foundation shares the most, 23.

21co-investors
3kinds
National Science Foundationmost shared (23)
VC firmsmost common kind

Cleantech Open's whole portfolioCleantech Open's profile

VC firms

11

Accelerators

6

Government funds

4

Segment by segment

VC firms

11 investors

  1. MCMassachusetts Clean Energy CenterVC firmUnited States8 backed
  2. MassVenturesVC firmUnited States5 backed
  3. TechstarsVC firmUnited States4 backed
  4. KatapultVC firmNorway3 backed
  5. SOSVVC firmUnited States3 backed
  6. MGMeyer GlobalInvestment firm-2 backed
  7. Climate CapitalVC firmUnited States2 backed
  8. Red Cedar VenturesVC firmUnited States2 backed

Accelerators

6 investors

  1. MassChallengeAcceleratorUnited States6 backed
  2. Los Angeles Cleantech IncubatorAcceleratorUnited States3 backed
  3. HAXAcceleratorUnited States2 backed
  4. AcceliCITY powered by Leading CitiesAcceleratorUnited States2 backed
  5. LuminateAcceleratorUnited States2 backed
  6. SVG VenturesAcceleratorUnited States2 backed

Government funds

4 investors

  1. National Science FoundationGovernment fundUnited States23 backed
  2. US Department of EnergyGovernment fundUnited States11 backed
  3. California Energy CommissionGovernment fundUnited States3 backed
  4. Innovation WorksGovernment fundUnited States2 backed

How this map is made. Every investor here has backed two or more of the same startups as Cleantech Open, in rounds we track. Grouped by kind, each ranked by how many startups it shares with Cleantech Open. Rebuilt nightly; updated 15 November 2026.

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