San Francisco, US · Partner
Sam Altman
Partner at Apollo Projectcs
StagesSeedSeries ASeries B
BacksBiotechAIAerospace & SpaceWellness
Latest rounds
- Longshot Space TechnologiesVenture · $5MJun 2026
- Retro BiosciencesVentureMay 2026
- Red Queen BioSeed · $15MMar 2026
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Rounds they were named in
- Rounds
- 82
- Led
- 0
- Disclosed
- $3.1B
- Active
- 2010–26
- Longshot Space TechnologiesVenture$5MUSJoined · +3 investors
Retro BiosciencesVentureUSJoined
Red Queen BioSeed$15MUSJoined · +4 investors
Arcadia MedicineSeed$9.3MUSJoined
teachme.toSeed$3MUSJoined · +4 investors- Coco RoboticsRound$80MUSJoined · +3 investors
- Longshot Space TechnologiesVentureUSJoined · +2 investors
cocoSeries B$80MMXJoined · +2 investors
Helion EnergySeries f$425MUSJoined · +10 investors- Retro BiosciencesSeries A$1BUSJoined
- Ashvattha TherapeuticsSeries B$50MUSJoined · +1 investor
NOYACKSeed$3MUSJoined · +1 investor
The latest 12 of 82. Rounds where a report named this person rather than a firm, matched on name: read it as a strong hint, not proof, since people share names.
Where they are named on record
Filings
- SEC Form D · Company raisingTools for Humanity CorpExecutive Officer, Directorsince 2022
- SEC Form D · Company raisingJourney Colab Corp.Directorsince 2021
- SEC Form D · Venture Capital fundOpenAIManager of the General Partneron 2 filings · since 2021
- SEC Form D · Venture Capital fundAPOLLO PROJECTS SPV-BMANAGING MEMBER OF THE GENERAL PARTNER OF THE ISSUERsince 2021
- SEC Form D · Company raisingTools for Humanity CorpDirectorsince 2021
- SEC Form D · Company raisingReddit, Inc.Directoron 4 filings · since 2017
- SEC Form D · Company raisingHelion Energy, Inc.Directorsince 2015
Each row is a document a firm filed with a regulator: somebody signed it, and it carries a date.
Their book
Startup Playbook
Sam Altman
4.47 from 595 ratings on Goodreads
About the book
http://playbook.samaltman.com/ .. We spend a lot of time advising startups. Though one-on-one advice will always be crucial, we thought it might help us scale Y Combinator if we could distill the most generalizable parts of this advice into a sort of playbook we could give YC…
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