Investing Profile

Sam Altman

AngelInvestorFounder
Co-founder and CEO of OpenAI
blog.samaltman.comSan Francisco, California
Photo of Sam Altman, Angel

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Y Combinator Network
37 CONNECTIONS
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Angel
$100K - $5.0M
$1.5M
157
CompanyStageDateRound SizeTotal Raised
Boom Supersonic
Series ADec 2024$100M
Series BApr 2019$100M
Series AMar 2017$33M
SeedMar 2016$6M
$330M
Co-investors: Avichal Garg (Electric Capital), Josh Buckley (Buckley Ventures), Reid Hoffman (Greylock), Wei Guo (UpHonest Capital), Matthew Bellamy (Helium-3 Ventures), Luigi Bajetti (LombardStreet Ventures), Michael Marks (Celesta), Zia Huque (Prime Movers Lab), Harshul Sanghi (American Express Ventures), Eric Lefkofsky (Lightbank), Jude Gomila (Jude Gomila Rolling Fund), Alexander Piskunov (KAAN Ventures), Max Altman (Saga), Alexander Gerko, Louis Beryl, Michael Moritz, Mattia Astori, Matt Bellamy, Sahin Boydas, Paul Graham
GALY
Series BSep 2024$33M
$34M
Co-investors: Carmichael Roberts (Breakthrough Energy Ventures), Tim Draper (Draper Associates), Jamie Goldstein (Pillar VC)
Beacon AI
Series AAug 2024$15M
SeedOct 2021$5M
$20M
Co-investors: Jackson Moses (Afore Capital), Jai Malik (Countdown Capital), Bradley C. Harrison (Scout Ventures), Lauren Farleigh (Mischief Venture Capital), Zach Perret (Mischief Venture Capital), Greg Sands (Costanoa Ventures), Jim Lockheed (JetBlue Technology Ventures)
Slope
Series UnknownJul 2024$15M
Series ASep 2023$30M
$77M
Co-investors: Darian Shirazi (Gradient Ventures), Marcelo Lima (monashees), John Buttrick (Union Square Ventures), Rebecca Kaden (Union Square Ventures), Donald Stalter (Global Founders Capital), David Helgason (foobar.vc), Max Altman (Saga), Brad Flora (Y Combinator), Surbhi Sarna (Y Combinator), Jack Altman (Alt Capital), Jared Friedman (Y Combinator), Alex Bouaziz (Sarona Ventures), Drew Houston, Stanley Tang, Arash Ferdowsi, Tim Griffin, William Hockey, Mathilde Collin, Eric Wu
ValueBase
SeedJun 2024$6M
Pre SeedFeb 2023$2M
$8M
Co-investors: Nat Friedman (C2 Investment), Erik Torenberg (Village Global), Julian Weisser (Kepler Operator’s Fund), Sahil Lavingia
APEX
SeedMay 2024$7M
$7M
Co-investors: Bogomil Balkansky (Sequoia Capital), Shardul Shah (Index Ventures), Min Teo (Ethereal Ventures)
Airchat
UndisclosedApr 2024
Exowatt
SeedApr 2024$20M
$20M
Co-investors: Viviana Faga (Felicis Ventures), Katherine Boyle (Andreessen Horowitz), Aydin Senkut (Felicis Ventures), Jack Abraham (Atomic)
President Y Combinator2016 - 2019