Mosaic Ventures
We back European founders who are reimagining the world with AI. We invest $1-10m at Seed and Series A. Our partners have worked in leading Silicon Valley startups since the dawn of the Internet and have collectively amassed over 50 years in tech on both sides of the Atlantic. We are a small team of investors and startup operators who typically make just a small number of new investments per year, so every relationship matters. We appreciate that success is not built overnight; we are in it for the long haul. Read about our thesis-driven approach to investing and what you can expect when working with us on our website. Per Crunchbase, Mosaic Ventures has made 99 investments, 27 as lead investor across 68 portfolio companies, with 28 exits including 6 IPOs.
Investing activity
Mosaic Ventures has made 99 investments according to Crunchbase across 68 portfolio companies, and has led 27 rounds and seen 28 exits, 6 of them by IPO.
Mosaic Ventures appears in 2 AI deals tracked by the AI Lounge deals desk, rounds totalling $14M, and led 1 of them. The rounds are mostly Seed, with a median round size of $14M. The most recent are Klarent (Seed, $8M, Oct 2026) and Cortea (Seed, €12M, Jun 2026).
Mosaic Ventures most often invests alongside Jürgen Galler, Harris Barton, AngelInvest Ventures and Moonfire, and the companies it backs on AI Lounge are mostly in AI.
Deals
Frequently asked questions about Mosaic Ventures
What AI companies has Mosaic Ventures invested in?
Mosaic Ventures's AI investments include Klarent and Cortea. The 2 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Mosaic Ventures based?
Mosaic Ventures is based in London, England, United Kingdom.
What stage does Mosaic Ventures invest at?
In the rounds tracked on AI Lounge, Mosaic Ventures has invested at Seed, with a median round of $14M. Mosaic Ventures led 1 of those rounds.
Who does Mosaic Ventures co-invest with?
Mosaic Ventures's most frequent co-investors on AI Lounge are Jürgen Galler (1 deal), Harris Barton (1 deal), AngelInvest Ventures (1 deal), Moonfire (1 deal) and Dawn Capital (1 deal).
How can founders reach Mosaic Ventures?
Founders on AI Lounge can see Mosaic 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 Mosaic Ventures to their Investor Pipeline to track the conversation.