Founder Factor
Founder Factor is an investment syndicate based in London, focused on early-stage venture investing. The firm is led by Y Combinator alumni and former founders, emphasizing its commitment to supporting top-performing startups emerging from Y Combinator, particularly those in the top 5-10% of batches. The company offers startup investing through its syndicate, providing not just capital but also support for selected Y Combinator startups. Its investment process includes an AI-assisted screening method combined with human review by experienced ex-YC founders. Founder Factor aims to give investo
Investing activity
Founder Factor appears in 1 AI deal tracked by the AI Lounge deals desk. The rounds are mostly Seed, with a median round size of $7M. The most recent is Constellation Space (Seed, $6.5M, Mar 2026).
Founder Factor most often invests alongside SGH CAPITAL, Founders Future and Y Combinator, and the companies it backs on AI Lounge are mostly in AI.
Deals
Frequently asked questions about Founder Factor
What AI companies has Founder Factor invested in?
Founder Factor's AI investments include Constellation Space. The 1 round on AI Lounge are listed on this page with amounts, dates and co-investors.
What stage does Founder Factor invest at?
In the rounds tracked on AI Lounge, Founder Factor has invested at Seed, with a median round of $7M.
Who does Founder Factor co-invest with?
Founder Factor's most frequent co-investors on AI Lounge are SGH CAPITAL (1 deal), Founders Future (1 deal) and Y Combinator (1 deal).
How can founders reach Founder Factor?
Founders on AI Lounge can see Founder Factor'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 Founder Factor to their Investor Pipeline to track the conversation.