First Star Ventures is a pre-seed venture capital fund based in Cambridge, Massachusetts that backs visionary research-driven founders and engineers working on frontier technologies including GenAI, robotics, biotechnology, cybersecurity, and energy.
Their most common stage is seed (57% of deals). Average disclosed round size is $8.4M (across 19 rounds with reported amounts).
Portfolio
18
Fund Size
$40M
Top Stage
Seed
Last 12 Mo
0
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
21 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| EExtellis | Unknown | $6.8M | Jan 2025 |
 Bedrock Energy | Seed | $8.5M | Oct 2023 |
 Robigo | Seed | $10M | May 2023 |
 Genialis | Series A | $13M | Mar 2023 |
| CChiselstrike | Seed | $7M | Jul 2022 |
 FYTO | Series A | $15M | Jul 2022 |
 VistaPath | Seed | $4M | Jun 2022 |
| CChiselstrike | Seed | $7M | Jan 2022 |
| EEnPowered | Seed | $10.3M | Jan 2020 |
| WWinterLight Labs | Series A | — | Nov 2019 |
 Plus One | Series A | $8.3M | Nov 2018 |
 Worthy | Series B | $8M | Oct 2015 |
 Phaseshift Technologies | Seed | $3M | — |
 Salient | Seed | — | — |
 Bot Auto | Series A | $20M | — |
| Bot Auto | Seed | $20M | — |
 Enzymit | Series A | $10M | — |
 Tranquil Data | Seed | $1.8M | — |
| IiOrganBio | Unknown | $2M | — |
| PPhaseShift | Seed | $3M | — |
| WWinterLight Labs | Seed | $1M | — |
Top Co-Investors
Wireframe Ventures2 shared
Innospark Ventures2 shared
Draper Associates2 shared
Linear Capital2 shared
EnvisionX Capital2 shared
UpHonest Capital2 shared
Cherubic Ventures2 shared
Welight Capital2 shared
Blumberg Capital2 shared
Essence VC2 shared
Norwest Venture Partners2 shared
Mango Capital2 shared
Flyer One Ventures1 shared
Boldstart Ventures1 shared
Charge Ventures1 shared
New Climate Ventures1 shared
Long Journey Ventures1 shared
Cantos1 shared
Toba Capital1 shared
Divergent Capital1 shared
Last updated: 8 September 2026