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# Hydrazine Capital
- URL: https://www.whiteroseintelligence.com/hydrazine-capital/
- Published: 2026-03-08T18:57:00.000Z
- Updated: 2026-03-08T19:29:31.000Z
- Author: Liam Sturgess
- Tags: Profiles, #docs, #organization, Organization, United States, California, Venture Capital, #toc

**Hydrazine Capital** is an American venture capital firm based in San Francisco, California.

## History

[Sam](https://www.whiteroseintelligence.com/Sam-Altman) and Jack Altman founded Hydrazine Capital in April 2012.[\[1\]](#fn1)[\[2\]](#fn2)

## Organization

| Name                                                           | Position             | Notes                                                                                                                                                                                                      |
| -------------------------------------------------------------- | -------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [Sam Altman](https://www.whiteroseintelligence.com/Sam-Altman) | Co-founder           | [OpenAI](https://www.whiteroseintelligence.com/OpenAI), [Tools for Humanity](https://www.whiteroseintelligence.com/Tools-for-Humanity), [Y Combinator](https://www.whiteroseintelligence.com/Y-Combinator) |
| Jack Altman                                                    | Co-founder           | Lattice                                                                                                                                                                                                    |
| Ryan Cohen                                                     | Partner[\[3\]](#fn3) | \-                                                                                                                                                                                                         |

### Portfolio

Companies currently or formerly in Hydrazine's portfolio include:[\[3:1\]](#fn3)[\[4\]](#fn4)

- BuildZoom
- Cambrian Genomics
- Flexport
- Oyster
- Patreon
- Soylent
- Starsky Robotics
- Studio SBV
- TriNet Zenefits
- ValueBase
- Verbling
- Wevorce

## External links

- [CB Insights](https://www.cbinsights.com/investor/hydrazine-capital)
- [Crunchbase](https://www.crunchbase.com/organization/hydrazine-capital)
- [Golden](https://golden.com/wiki/Hydrazine%5FCapital-W4B6EKR)
- [PitchBook](https://pitchbook.com/profiles/investor/57660-49#overview)

---

1. *Hydrazine Capital LP - Company Profile and News.* Bloomberg. Retrieved July 27, 2023, from <http://archive.today/2023.07.27-204255/https://www.bloomberg.com/profile/company/1003986D:US> [↩︎](#fnref1)
2. HYDRAZINE CAPITAL GP, LLC. (2023). *Form ADV - Uniform Application for Investment Adviser Registration and Report by Exempt Reporting Advisers.* Securities and Exchange Commission. <https://reports.adviserinfo.sec.gov/reports/ADV/165781/PDF/165781.pdf> [↩︎](#fnref2)
3. *Hydrazine Capital Overview.* PitchBook. Retrieved July 27, 2023, from <http://archive.today/2023.07.27-211224/https://pitchbook.com/profiles/investor/57660-49%23overview> [↩︎](#fnref3) [↩︎](#fnref3:1)
4. *Query | 9 results.* Golden. Retrieved July 24, 2023, from <https://web.archive.org/web/20230727211957/https://golden.com/query/p/WzYsW1sxODgsW1stMSwwLCJhbnkiLGZhbHNlLFs1MzYxMTMxXSxudWxsXV1dXSxmYWxzZSxbXSxbXV0/> [↩︎](#fnref4)