J12 Ventures
J12 Ventures is a Swedish venture capital firm based in Stockholm, focusing on investments in the pre-seed and seed stages. The firm specializes in supporting technical founders across Europe who are building within the data and AI landscape. With a team of experienced founders and operators, J12 Ventures aims to partner with exceptional entrepreneurs to create generational companies. The firm invests in two main segments of the AI landscape: enablers, which include data infrastructure and developer tools, and applications that leverage AI technologies to enhance enterprise workflows. J12 Ven Per Crunchbase, J12 has made 58 investments, 23 as lead investor across 41 portfolio companies, with 2 exits.
Investing activity
J12 Ventures appears in 2 AI deals tracked by the Lounge deals desk, and led 1 of them. The rounds are mostly Seed and Pre-seed, with a median round size of $3M. The most recent are Volve (Seed, $3M, Aug 2026) and Galdera Labs (Pre-seed, €1.5M, Mar 2026).
J12 Ventures most often invests alongside Antler Elevate (Antler), Skyfall Ventures, Daniel Kjorberg Siraj and StartupLab, and the companies it backs on Lounge are mostly in AI.
Deals
Frequently asked questions about J12 Ventures
What AI companies has J12 Ventures invested in?
J12 Ventures's AI investments include Volve and Galdera Labs. The 2 rounds on Lounge are listed on this page with amounts, dates and co-investors.
Where is J12 Ventures based?
J12 Ventures is based in Stockholm, Stockholm County, Sweden.
What stage does J12 Ventures invest at?
In the rounds tracked on Lounge, J12 Ventures has invested at Seed and Pre-seed, with a median round of $3M. J12 Ventures led 1 of those rounds.
Who does J12 Ventures co-invest with?
J12 Ventures's most frequent co-investors on Lounge are Antler Elevate (Antler) (2 deals), Skyfall Ventures (1 deal), Daniel Kjorberg Siraj (1 deal), StartupLab (1 deal) and OBOS Ventures (1 deal).
How can founders reach J12 Ventures?
Founders on Lounge can see J12 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 J12 Ventures to their Investor Pipeline to track the conversation.