What does Greg Brockman invest in?
Greg Brockman invests most often at Seed and Series A (50% of the rounds on record).

Last cheque observed May 2026; 5 cheques on record.
Investment firmDeploying now
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1 cheques in the last 12 months
Mostly Seed and Series A: 50% of its rounds
Every round we can evidence, newest first5 appearances
1 round
2 rounds
1 round
1 round
An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.
We hold 1 person at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.
From their own portfolio page (on their website)
GigaomKspliceOpenAIQuoraStripekeynotevideovideoGit internals -Harvard Computer SocietyLinervaLogging best practicesOSCONOn miningOverclocking SSLPythonQConSFTestimonyThe Debian policy manualUnicode and character setsXVMbuffer overrunpublishedscripts.mit.eduslidestranscript
Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.
The investors most often in the same rounds as Greg Brockman. A count of rooms they were both in, not a relationship either has claimed.
The latest companies Greg Brockman put money into.
6 episodes naming Greg Brockman in the title, and 4 more that mention it.

The Changing Physics of Cybersecurity and Drug Development with OpenAI President Greg Brockman
MentionsGreg Brockman

Greg Brockman on Why OpenAI Says We’re Entering the AGI Era
MentionsGreg BrockmanBen Horowitz

Math Wars, GG Navier Stokes, Greg Brockman Joins | Dan Wright, Eric Seufert, Scott Wu, Sahir Jaggi, Andrew Borovsky, Harry Mellsop
MentionsGreg Brockman

Greg Brockman on Astra and the Future of OpenAI
MentionsGreg Brockman

OpenAI's Greg Brockman: Why Human Attention Is the New Bottleneck
MentionsGreg BrockmanAlfred Lin

OpenAI Day: GPT-5 Unveiled | Mark Chen, Greg Brockman, Sarah Friar, Max Schwarzer, Brad Lightcap & More
WithBrad Lightcap
MentionsGreg Brockman

Why We Need Ferries and Tugboats in Space w/ Orbital Operations | E2208

Cheeky Pint hosted by Stripe cofounder John Collison

Inside marketing at Stripe, OpenAI and Retool | Krithika Muthukumar (VP of Marketing at OpenAI, ex-Stripe, Retool, Dropbox, Google)

BREAKING: Sam Altman fired from OpenAI, chaos ensues! | E1851
Greg Brockman invests most often at Seed and Series A (50% of the rounds on record).
5 investments on record, 1 of them in the last 12 months. The most recent was in May 2026.
Its most recent investments on record: Netomi (Series C, May 2026), Hugging Face (Undisclosed round, Dec 2019) and Rasa (Series A, Apr 2019).
The median round it joins is $14M.
Rarely, if at all: none of its 5 investments on record names it as the lead.
Yes: it is actively investing, with 1 investments in the last 12 months.
Most often Sam Altman (2 rounds together).
Greg Brockman is an investment firm.
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Built from the rounds we watched, its filings and its own website, refreshed every night. How we count · Report a correction · Is this your firm? Claim it