Join Capital
Join Capital GmbH is a Berlin-based deep tech venture firm that invests between €1 million and €5 million in companies from Pre-Seed to Series A stages. The firm focuses on founders developing deep tech solutions with real intellectual property and a competitive edge over traditional systems. In addition to its headquarters in Berlin, Join Capital has offices in London and Milan to enhance its global reach. The company manages a closed-end fund, the Join Capital Global Strategic Technologies Fund III GmbH & Co. KG, which has a minimum investment requirement of €200,000. Investors are expected
Investing activity
Join Capital appears in 1 AI deal tracked by the AI Lounge deals desk, and led 1 of them. The rounds are mostly Seed, with a median round size of $5M. The most recent is enclaive (Seed, $4.8M (EUR 4.1M), Feb 2026).
Join Capital most often invests alongside Amadeus APEX Technology Fund and Auriga Cyber Ventures, and the companies it backs on AI Lounge are mostly in AI.
Deals
Frequently asked questions about Join Capital
What AI companies has Join Capital invested in?
Join Capital's AI investments include enclaive. The 1 round on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Join Capital based?
Join Capital is based in Berlin, Berlin, Germany.
What stage does Join Capital invest at?
In the rounds tracked on AI Lounge, Join Capital has invested at Seed, with a median round of $5M. Join Capital led 1 of those rounds.
Who does Join Capital co-invest with?
Join Capital's most frequent co-investors on AI Lounge are Amadeus APEX Technology Fund (1 deal) and Auriga Cyber Ventures (1 deal).
How can founders reach Join Capital?
Founders on AI Lounge can see Join Capital'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 Join Capital to their Investor Pipeline to track the conversation.