Antiportfolio Ventures
Antiportfolio Ventures appears in 2 AI deals tracked on Lounge in 2026.
Investing activity
Antiportfolio Ventures appears in 2 AI deals tracked by the Lounge deals desk, rounds totalling $60M. The rounds are mostly Seed, with a median round size of $40M. The most recent are Twin1 AI (Seed, $20M, Aug 2026) and Sandstone (Seed, $39.6M, Jan 2026).
Antiportfolio Ventures most often invests alongside Tribeca Venture Partners, Aramco Ventures, Bessemer Venture Partners and AGI House Ventures, and the companies it backs on Lounge are mostly in AI.
Deals
Frequently asked questions about Antiportfolio Ventures
What AI companies has Antiportfolio Ventures invested in?
Antiportfolio Ventures's AI investments include Twin1 AI and Sandstone. The 2 rounds on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Antiportfolio Ventures invest at?
In the rounds tracked on Lounge, Antiportfolio Ventures has invested at Seed, with a median round of $40M.
Who does Antiportfolio Ventures co-invest with?
Antiportfolio Ventures's most frequent co-investors on Lounge are Tribeca Venture Partners (1 deal), Aramco Ventures (1 deal), Bessemer Venture Partners (1 deal), AGI House Ventures (1 deal) and KittyHawk Ventures (1 deal).
How can founders reach Antiportfolio Ventures?
Founders on Lounge can see Antiportfolio Ventures'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 Antiportfolio Ventures to their Investor Pipeline to track the conversation.