Greg Brockman
Unicorn founderCo-founder & President at OpenAI · Founding Engineer, then first CTO at Stripe
San Francisco, CA
Writes $100K – $5M checks · typically $1.5M
FoundedOpenAI$852B
Find your path to Greg
602 people in our graph share verified history with Greg — schools, employers, funds. One of them is your warm intro.
Hemant TanejaunlockedGreg: together at Stripe (2011–2015)
×4Greg: together at Stripe
×4Greg: together at Harvard University
Greg: together at Massachusetts Institute of Technology
About
Greg Brockman co-founded OpenAI in 2015 and, as its President, is worth an estimated $25.5 billion on the company's $852 billion March 2026 valuation. A math-olympiad kid from Thompson, North Dakota (pop. ~1,000) who won silver at the 2006 International Chemistry Olympiad, he left Harvard, then MIT, to become one of Stripe's first engineers — its first CTO, scaling engineering from 5 to 205 people. At OpenAI he was CTO, then President, personally live-demoing GPT-4 on launch day; when the board fired Sam Altman in November 2023, Brockman quit within hours and returned with him five days later.
Likely emails· guessed from name + firm domain, not firm-published
- g•••@openai.comreveal90% confident
- g•••@openai.comreveal75% confident
Beyond investing
- Founded
- Brockman co-founded OpenAI in December 2015 alongside Sam Altman, Ilya Sutskever and others, initially operating from his living room. Left MIT in 2010 to become one of Stripe's first engineers, then its first CTO, scaling the team from 5 to 205.
- Education
- Studied at Harvard University Studied at Massachusetts Institute of Technology Studied at Red River High School Studied at University of North Dakota Attended Canada/USA Mathcamp three times (2003, 2005, 2007) — a math-camp kid before a startup kid.
- Charities
- Brockman made a $5.5 million donation to the nonprofit Friends of Big Bear Valley to help save a wildlife habitat for the eagles Jackie and Shadow.
- Communities
- Brockman helped found Leading the Future, a super PAC focused on AI deregulation, with Andreessen Horowitz co-founders Marc Andreessen and Ben Horowitz. Grew up in Thompson, North Dakota, population about a thousand. With his wife donated $5.5M to Friends of Big Bear Valley, the bald-eagle nest-cam nonprofit.
- Awards
- Brockman won a silver medal in the 2006 International Chemistry Olympiad. Brockman was the first finalist from North Dakota to participate in the Intel Science Talent Search since 1973.
- Hobbies
- As a high schooler Brockman attended Canada/USA Mathcamp in 2003, 2005, and 2007.
- Family
- Brockman married Anna Brockman in November 2019 at OpenAI's offices, with Ilya Sutskever officiating the wedding. Brockman was born in Thompson, North Dakota, to Ron Brockman and Ellen Feldman. Married Anna at the OpenAI office in November 2019, with co-founder Ilya Sutskever officiating.
- More
- Personally live-demoed GPT-4 in OpenAI's launch-day developer livestream on March 14, 2023.
Mentioned above: the Massachusetts Institute of Technology mafia → · the Stripe mafia →
From Greg's own website — common ground for a warm intro.
Co-founder & President at OpenAI
Intro paths
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In turn, Greg can intro founders to OpenAI's investors below.
OpenAI's investors · 61
A.Capital VenturesSan FranciscoA'Z AngelsLos GatosAdvent InternationalBoston · $1.1B checksAlpha Wave GlobalMiamiAltimeter CapitalMenlo Park · $1M – $25M checks · since 2026Andreessen HorowitzMenlo Park · $500K – $50M checksAntiSan Juan · $250K – $30M checksBedrockLos Angeles · $5M – $30M checksboldstart venturesMiami · $1M – $3M checksCoatue ManagementNew York · $1M – $20M checksCosmic Venture PartnersAustin · $100K – $5M checksDragoneer Investment GroupSan Francisco · $100K – $5M checks · since 2025Eastlink Capital PartnersMenlo Park · $100K – $5M checksEmerson Collective InvestingPalo Alto · $100K – $1M checksEverybody Ventures$100K checksFelicis VenturesSan Francisco · $500K – $15M checksFirestreak VenturesFounders FundSan Francisco · $500K – $5M checksFrontier VenturesCupertino · $100K – $5M checksGaldana VenturesBarcelonaGestio CapitalLondonGlynn Capital ManagementMenlo ParkGreylock PartnersSan Francisco · $100K – $200M checksHOF CapitalNew York · $25K – $15M checksICONIQSan FranciscoIneffable VenturesStamfordKaleida CapitalSan DiegoKhosla VenturesMenlo Park · $5K – $50M checksLakeside CapitalTampa · $100K – $250K checksMadrona Venture GroupSeattle · $2M – $10M checksMastrySan FranciscoMaverick VenturesSan Francisco · $3M – $10M checksMech VenturesLas VegasMGXAbu Dhabi · since 2025Next Legacy PartnersPortola ValleyNVIDIASanta ClaraOssian CapitalPeter ThielRiverbend CapitalWashingtonRosecliff VenturesNew York City · $500K checksSanctor CapitalNew YorkSequoia CapitalMenlo Park · $4.4M – $214M checksSGH CapitalParisSoftBank GroupTokyoSoftBank Vision FundLondonSoma CapitalSacramento · $100K – $300K checksSound VenturesSanta MonicaSparkLabs KoreaPalo AltoSquareOne CapitalMiamiStack CapitalTorontoStandard CapitalSan FranciscoSV AngelSan FranciscoT. Rowe PriceBaltimore · since 2025Thrive CapitalNew York · $500K – $25M checks · since 2025Touring CapitalSan FranciscoType One VenturesLos Angeles · $100K – $5M checksValkyrie Ventures Management, LlcPark CityVU Venture PartnersSan Francisco · $200K – $1M checksWAGMI VenturesWealthUnion$10K checksXYZ Venture CapitalSan Francisco · $10K – $5M checks
Co-founders at OpenAI
SA
Sam AltmanCo-founder & CEO
EM
Elon MuskCo-founder & former Co-chair / board member
IS
Ilya SutskeverCo-founder & Chief Scientist
WZ
Wojciech ZarembaCo-founder
JS
John SchulmanCo-founder (departed 2024)
AK
Andrej KarpathyCo-founder
TB
Trevor BlackwellCo-founder
VC
Vicki CheungCo-founder
Founding Engineer, then first CTO at StripeYC S09
Intro paths
YC
Greg went through Y Combinator (Summer 2009) — any YC alum in your network can reach them through the YC community.
→
In turn, Greg can intro founders to Stripe's investors below.
Stripe's investors · 67
500 GlobalSan Francisco · $150K checks · since 2014Advaita CapitalBostonAglae VenturesParis · $108K – $5.4M checksAir Street CapitalSt. Peter Port · $500K – $10M checksAlkeon InnovationNew YorkAltos VenturesBurlingame · $1M – $3M checksAlvenParisAndreessen HorowitzMenlo Park · $500K – $50M checks · since 2026AtomicoLondonBase PartnersSão PauloBoxGroupNew York · $1M checksCapitalGSan Francisco · $50M – $100M checksCoatue ManagementNew York · $1M – $20M checksDesigner FundSan Francisco · $100K – $1M checksDria VenturesNew YorkEmerson Collective InvestingPalo Alto · $100K – $1M checksEntrée CapitalTel Aviv · $150K – $15M checksFelicis VenturesSan Francisco · $500K – $15M checksFirestreak VenturesFirstMark CapitalNew York · $500K – $8M checks · since 2024Founders FundSan Francisco · $500K – $5M checksFourth RealmMenlo ParkGaldana VenturesBarcelonaGeneral CatalystSan Francisco · $30M checksGlade Brook Capital PartnersGreenwichGlynn Capital ManagementMenlo ParkGolden Gate VenturesSingapore · $473K – $60M checksGoose Valley VenturesStockholm · $870K checksGreen Meadow VenturesWest Hollywood · $500K – $3M checksGreenoaksSan Francisco · $1M – $50M checksHeavybitSan Francisco · $500K – $5M checksICONIQSan FranciscoImaginary Venture CapitalNew York · $1M – $10M checksInterplay Ventures Early Stage Management LlcNew York · $1M checksInvestXVancouverJuniperoMiamiKhosla VenturesMenlo Park · $5K – $50M checksKleiner PerkinsMenlo Park · $500K – $15M checksLowercase CapitalJacksonMoment Ventures, LlcPalo AltoNew Wavesince 2024Night CapitalCapitolaNotable CapitalSilicon Valley · $5M – $50M checksParadigmSan Francisco · $1M – $100M checksPreston-Werner VenturesSan Francisco Bay Area · $500K – $3M checksPrime VenturesAmsterdam · $5.4M – $16.2M checksQuest VenturesSingapore · $50K – $10M checksRedpoint VenturesWoodside · $100K – $10M checksSciFi VCSan Francisco · $100K – $1M checksSeiho Investment WorksKyoto · $67K – $670K checksSequoia CapitalMenlo Park · $4.4M – $214M checks · since 2024Sherpalo VenturesMenlo ParkSignalFireSan Francisco · $250K – $15M checks · since 2024Sixth StreetSan Francisco · $50M – $2.5B checksSouth QuadSquare Peg CapitalMelbourneSquareOneBerlin · $378K – $3.8M checksSquareOne CapitalMiamiStandard CapitalSan FranciscoSV AngelSan FranciscoThe Players' ImpactThrive CapitalNew York · $500K – $25M checks · since 2026Union Square Ventures (USV)New York City · $1M – $8M checksWAGMI VenturesWealthUnion$10K checksXYZ Venture CapitalSan Francisco · $10K – $5M checksY CombinatorSan Francisco · $500K checks · since 2009
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Co-founders at Stripe
JC
John CollisonCo-founder & President
PC
Patrick CollisonCo-founder & CEO
Experience
Podcasts & interviews
featuring Greg BrockmanNetwork1
Investors connected to Greg in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Greg Brockman?
- Greg Brockman co-founded OpenAI in 2015 and, as its President, is worth an estimated $25.5 billion on the company's $852 billion March 2026 valuation. A math-olympiad kid from Thompson, North Dakota (pop. ~1,000) who won silver at the 2006 International Chemistry Olympiad, he left Harvard, then MIT, to become one of Stripe's first engineers — its first CTO, scaling engineering from 5 to 205 people. At OpenAI he was CTO, then President, personally live-demoing GPT-4 on launch day; when the board fired Sam Altman in November 2023, Brockman quit within hours and returned with him five days later.
- Where does Greg Brockman work?
- Greg Brockman is Co-founder & President of OpenAI and Founding Engineer, then first CTO at Stripe.
- What check size does Greg Brockman write?
- Greg Brockman typically writes checks of $100K – $5M.
- What companies did Greg Brockman found?
- Greg Brockman founded OpenAI.
- Where did Greg Brockman go to school?
- Greg Brockman studied at Massachusetts Institute of Technology (Computer Science); Harvard University (Mathematics and Computer Science).
- What awards has Greg Brockman received?
- Brockman won a silver medal in the 2006 International Chemistry Olympiad. Brockman was the first finalist from North Dakota to participate in the Intel Science Talent Search since 1973.
- What podcasts and interviews feature Greg Brockman?
- Tracked appearances include "Greg Brockman on OpenAI's Road to AGI", "The inside story of ChatGPT's astonishing potential", "Greg Brockman: OpenAI and AGI".
Founder mafias
Massachusetts Institute of Technology mafia1,220
Also came through, then founded or led a company.
Elad GilPhDFounded Brain Co. +1Hemant TanejaM.Eng.Founded Hippocratic AINat FriedmanBachelor of ScienceFounded XamarinBrad FeldS.B.Founded TechstarsMatt HuangB.S.Founded Paradigm +1Delian AsparouhovDropoutFounded Nightingale +1
+ 1,213 more
Stripe mafia152
Also came through, then founded or led a company.
Hemant TanejaInvestor (former Board Member)Founded Hippocratic AIMatt HuangBoard MemberFounded Paradigm +1Patrick CollisonCo-founder & CEOFounded AuctomaticDaniela AmodeiEarly employee — Risk ManagerFounded AnthropicArvid LunnemarkSoftware EngineeringFounded CursorParker ConradMember Board of DirectorsFounded Zenefits +1
+ 145 more
Same school
Also attended Massachusetts Institute of Technology2,000
Fred WilsonCo-founder & Partner at Union Square VenturesElad GilSolo general partner investing through Gil CapitalAileen LeeFounder & Managing Partner of Cowboy VenturesHemant TanejaCEO & Managing Director of General CatalystPhilippe LaffontFounder & CIO of Coatue ManagementNat FriedmanCo-lead of Meta Superintelligence Labs; co-founder of NFDG
+ 1,994 more
Also attended Harvard University2,000
Ron ConwayFounder of SV AngelAlfred LinPartner at Sequoia CapitalChris DixonFounder & Managing Partner of a16z crypto at Andreessen HorowitzSarah TavelVenture Partner at BenchmarkDanny RimerPartner at Index VenturesLaela SturdyManaging Partner at CapitalG
+ 1,994 more
Shared employers
Also worked at OpenAI180
Reid HoffmanCo-founder of LinkedIn; Partner at GreylockPat GradyPartner at Sequoia CapitalIlya SutskeverCo-founder of OpenAI; co-founder & CEO of Safe SuperintelligenceAravind SrinivasCo-founder & CEO of Perplexity AIDario AmodeiCo-founder & CEO of AnthropicDaniela AmodeiCo-founder & President of Anthropic
+ 174 more
Also worked at Stripe234
Hemant TanejaCEO & Managing Director of General CatalystMatt HuangCo-founder and Managing Partner at ParadigmLuciana LixandruPartner at Sequoia CapitalPatrick CollisonCo-founder & CEO of StripeJohn CollisonCo-founder & President of StripeDaniela AmodeiCo-founder & President of Anthropic
+ 228 more