Investing Profile

Ian Hathaway

AdvisorVCInvestor
Partner at OpenAI
openai.comSan Francisco, California
Photo of Ian Hathaway, Partner at OpenAI

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OpenAI Network
44 CONNECTIONS
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OpenAI Partner
$100K - $5.0M
$1.5M
14
CompanyStageDateRound SizeTotal Raised
Adaptive Security
Series BDec 2025$81M
Series AApr 2025$55M
$140M
Co-investors: Enrique Salem (Bain Capital Ventures), Zane Lackey (Andreessen Horowitz)
Harvey
Series EOct 2025$59M
Series EJun 2025$300M
Series DFeb 2025$300M
Series CJul 2024$100M
Series BDec 2023$80M
SeedNov 2022$5M
$1.2B
Co-investors: Sangeen Zeb (GV (Google Ventures)), Patrick Grady (Sequoia Capital), Anas Biad (Sequoia Capital), Elad Gil (Gil Capital / Gil & Co), Brian Halligan (Propeller VC), Saurabh Gupta (DST Global), Kris Fredrickson (Verified Capital), Ilya Fushman (Kleiner Perkins)
Endex
Series UnknownAug 2025$14M
$14M
Ambience Healthcare
Series CJul 2025$240M
Series BFeb 2024$70M
$320M
Co-investors: Julie Yoo (Andreessen Horowitz), Immad Akhund (Y Combinator), Mamoon Hamid (Kleiner Perkins), Vignesh Chandramouli (Oak HC/FT)
Speak
Series CDec 2024$78M
Series BNov 2022$27M
$150M
Co-investors: Josh Buckley (Buckley Ventures), Sven Strohband (Khosla Ventures), Jeff Weiner (Next Play Ventures), Lachy Groom (Physical Intelligence), Ben Quazzo (Accel-KKR), Gokul Rajaram (gokulrajaram.com), Justin Mateen, Paul Graham, Arash Ferdowsi, Drew Houston
Anysphere (Cursor)
SeedJul 2023$8M
$2.4B
Co-investors: Marco Mascorro (Andreessen Horowitz), Martin Casado (Andreessen Horowitz), Matt Bornstein (Andreessen Horowitz), Joshua Kushner (Thrive Capital), Michael Fertik (Heroic Ventures), Nat Friedman (Self-employed), Arash Ferdowsi, Patrick Collison
Partner OpenAIPresent
Investor Haystack2017 - 2021
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