Portfolio Ventures
Portfolio Ventures is a London-based venture capital firm and angel network, established in October 2014 by Will Martin and Will Brooks. The firm specializes in early-stage investments, focusing on technology sectors such as Fintech, Insurtech, B2B SaaS, and Enterprise Software, with a particular interest in verticalized AI and SaaS companies. Portfolio Ventures is authorized and regulated by the UK Financial Conduct Authority and is known for its extensive network of over 1,000 strategic angel investors, family offices, and VCs. The firm operates through its PV Angel Fund, which invests betw
Investing activity
Portfolio Ventures appears in 5 AI deals tracked by the AI Lounge deals desk. The rounds are mostly Seed, with a median round size of $6M and the largest at $9M. The most recent are IMMIX (Seed, $3.5M (EUR 3.1M), Oct 2026), Cleavr (Seed, €8M, Oct 2026) and Nettle (Seed, $4.8M, Oct 2026).
Portfolio Ventures most often invests alongside Ventures Together, BTSE, Crane Venture Partners and Varsity, and the companies it backs on AI Lounge are mostly in AI.
Deals
Frequently asked questions about Portfolio Ventures
What AI companies has Portfolio Ventures invested in?
Portfolio Ventures's AI investments include IMMIX, Cleavr, Nettle, Prolo and Seapoint. The 5 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Portfolio Ventures based?
Portfolio Ventures is based in London, England, United Kingdom.
What stage does Portfolio Ventures invest at?
In the rounds tracked on AI Lounge, Portfolio Ventures has invested at Seed, with a median round of $6M.
Who does Portfolio Ventures co-invest with?
Portfolio Ventures's most frequent co-investors on AI Lounge are Ventures Together (2 deals), BTSE (1 deal), Crane Venture Partners (1 deal), Varsity (1 deal) and Kima Ventures (1 deal).
How can founders reach Portfolio Ventures?
Founders on AI Lounge can see Portfolio 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 Portfolio Ventures to their Investor Pipeline to track the conversation.