13books
Investing activity
13books appears in 1 AI deal tracked by the Lounge deals desk, and led 1 of them. The rounds are mostly Seed, with a median round size of $8M. The most recent is Seapoint (Seed, €7.5M, Apr 2026).
13books most often invests alongside Portfolio Ventures, Frontline Ventures, Tapestry and Ventures Together, and the companies it backs on Lounge are mostly in AI.
Deals
Frequently asked questions about 13books
What AI companies has 13books invested in?
13books's AI investments include Seapoint. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does 13books invest at?
In the rounds tracked on Lounge, 13books has invested at Seed, with a median round of $8M. 13books led 1 of those rounds.
Who does 13books co-invest with?
13books's most frequent co-investors on Lounge are Portfolio Ventures (1 deal), Frontline Ventures (1 deal), Tapestry (1 deal) and Ventures Together (1 deal).
How can founders reach 13books?
Founders on Lounge can see 13books'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 13books to their Investor Pipeline to track the conversation.