Altimeter Capital
Brad Gerstner's technology crossover fund; led Baseten's Series F and co-led Anthropic's Series H.
Investing activity
Altimeter Capital appears in 11 AI deals tracked by the AI Lounge deals desk, rounds totalling $81.4B, and led 7 of them. The rounds are mostly Seed, Series F and Series H+, with a median round size of $230M and the largest at $65B. The most recent are Arda (Venture round, $230M, Oct 2026), SciFin (Seed, $44M, Sep 2026) and Attestable (Seed, $20M, Aug 2026).
Altimeter Capital most often invests alongside Nvidia, Striker Venture Partners, Andreessen Horowitz and Menlo Ventures, and the companies it backs on AI Lounge are mostly in AI, AI manufacturing and AI infrastructure.
Deals
Frequently asked questions about Altimeter Capital
What AI companies has Altimeter Capital invested in?
Altimeter Capital's AI investments include Arda, SciFin, Attestable, Volta, Elorian AI, Baseten, Anthropic and Elorian. The 11 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Altimeter Capital based?
Altimeter Capital is based in Menlo Park, US.
What stage does Altimeter Capital invest at?
In the rounds tracked on AI Lounge, Altimeter Capital has invested at Seed, Series F, Series H+ and Growth, with a median round of $230M. Altimeter Capital led 7 of those rounds.
Who does Altimeter Capital co-invest with?
Altimeter Capital's most frequent co-investors on AI Lounge are Nvidia (3 deals), Striker Venture Partners (3 deals), Andreessen Horowitz (2 deals), Menlo Ventures (2 deals) and Sequoia Capital (2 deals).
How can founders reach Altimeter Capital?
Founders on AI Lounge can see Altimeter Capital's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with the firm under Warm Paths, and add Altimeter Capital to their Investor Pipeline to track the conversation.