Fifty Years
Fifty Years is a venture capital firm based in San Francisco, California, that focuses on pre-seed and seed investments in deep tech startups. Founded in 2015, the firm supports entrepreneurs, particularly scientists and engineers, who are using advanced technology to tackle significant global challenges such as climate change, health issues, and food security. Fifty Years aims to transform scientific breakthroughs into scalable solutions that contribute to Sustainable Development Goals. The firm provides early-stage capital and comprehensive support to its portfolio companies, which include
Investing activity
Fifty Years appears in 2 AI deals tracked by the AI Lounge deals desk, rounds totalling $50M, and led 1 of them. The rounds are mostly Seed, with a median round size of $50M. The most recent are Wafer (Seed, $4M, Apr 2026) and Adaption Labs (Seed, $50M, Feb 2026).
Fifty Years most often invests alongside Jeffrey Dean, Liquid 2 Ventures, Wojciech Zaremba and Y Combinator, and the companies it backs on AI Lounge are mostly in AI.
Deals
Frequently asked questions about Fifty Years
What AI companies has Fifty Years invested in?
Fifty Years's AI investments include Wafer and Adaption Labs. The 2 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Fifty Years based?
Fifty Years is based in San Francisco, California, United States.
What stage does Fifty Years invest at?
In the rounds tracked on AI Lounge, Fifty Years has invested at Seed, with a median round of $50M. Fifty Years led 1 of those rounds.
Who does Fifty Years co-invest with?
Fifty Years's most frequent co-investors on AI Lounge are Jeffrey Dean (1 deal), Liquid 2 Ventures (1 deal), Wojciech Zaremba (1 deal), Y Combinator (1 deal) and Emergence Capital (1 deal).
How can founders reach Fifty Years?
Founders on AI Lounge can see Fifty Years'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 Fifty Years to their Investor Pipeline to track the conversation.