
The OpenAI Startup Fund is the corporate venture capital arm of OpenAI, investing $175 million in early-stage AI companies where artificial intelligence can have a transformative effect. Founded in 2021, it is based in San Francisco, California.
Deal activity increased 186% year-over-year (20 deals in the last 12 months). Average disclosed round size is $101.0M (across 71 rounds with reported amounts).
Portfolio
66
Fund Size
$175M
Top Stage
Seed
Last 12 Mo
17
Team
BL
Brad Lightcap
Managing Director
IH
Ian Hathaway
Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
87 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| Series B | $70M | Mar 2026 | |
| Series C | $94M | Mar 2026 | |
| Seed | $5.8M | Mar 2026 | |
| Pre-Seed | — | Feb 2026 | |
| Pre-Seed | $10M | Feb 2026 | |
| SSB Energy | Growth | $1B | Jan 2026 |
| Series B | $40M | Jan 2026 | |
| Growth | $1B | Jan 2026 | |
| Series A | $40M | Jan 2026 | |
| Series B | $81M | Dec 2025 | |
| Series B | $130M | Dec 2025 | |
| SSpiich Labs | Pre-Seed | — | Nov 2025 |
| VValthos | Seed | $30M | Oct 2025 |
| Series A | $15M | Oct 2025 | |
| Seed | $300M | Sep 2025 | |
| Series C | — | Sep 2025 | |
| Series A | — | Sep 2025 | |
| Series A | $55M | Sep 2025 | |
| Series A | — | Aug 2025 | |
| Series A | — | Aug 2025 | |
| Series C | — | Jul 2025 | |
| Series C | $243M | Jul 2025 | |
| OOraion | Pre-Seed | — | Jul 2025 |
| Series E | $300M | Jun 2025 | |
| Seed | $4.5M | Apr 2025 |
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Top Co-Investors
Y Combinator9 shared
Kleiner Perkins9 shared
Sequoia Capital8 shared
Thrive Capital8 shared
Khosla Ventures7 shared
Accel6 shared
Neo6 shared
Figma Ventures6 shared
Google DeepMind6 shared
Abstract Ventures5 shared
Coatue Management LLC5 shared
Andreessen Horowitz5 shared
NVentures5 shared
Tiger Global Management, LLC4 shared
M124 shared
Optum Ventures4 shared
Lux Capital4 shared
GV4 shared
Oak HC/FT4 shared
SV Angel4 shared
Last updated: 9 September 2026