AC
Altimeter CapitalA Boston-based technology-focused investment firm managing public and private capital, founded and led by Brad Gerstner, known for major growth-stage bets in AI, cloud, and infrastructure companies.
2 Pulse stories
O
OpenAIOpenAI is the maker of ChatGPT and the GPT model family, serving roughly 900M weekly active users with 50M+ paid subscribers — it filed its S-1 on June 8, 2026 ahead of a planned IPO.
196 Pulse stories
Total Raised
$180B
Altimeter CapitalOpenAI
Last Valuation
$852B
Altimeter CapitalOpenAI
AI infra
Sector
AI infra
2008
Founded
2015
Boston, Massachusetts
HQ
San Francisco, California, USA
Private
Status
Private
Altimeter Capital investors
No investors on record.
OpenAI investors
MicrosoftSoftBankNvidiaAmazonThrive CapitalSequoia CapitalKhosla Ventures
Data from Value Add Pulse coverage and company research — see the full threads for Altimeter Capital and OpenAI.