Carbon13
Carbon13 is a venture builder and climate-tech investor based in Cambridge, UK, with an expansion in Berlin, Germany. Founded in 2019, the company focuses on creating and supporting startups that aim to address the climate emergency by significantly reducing or removing carbon emissions. Carbon13's mission is to empower thousands of entrepreneurs to develop ventures capable of mitigating at least 10 million tonnes of CO₂e per year at scale. The company offers structured programs that guide founders from the initial concept to early funding and market entry. These programs include the Venture
Investing activity
Carbon13 appears in 1 AI deal tracked by the AI Lounge deals desk. The rounds are mostly Pre-seed, with a median round size of $1M. The most recent is TetraxAI (Pre-seed, €1.2M, Jan 2026).
Carbon13 most often invests alongside The Footprint Firm and Norrsken Evolve, and the companies it backs on AI Lounge are mostly in AI.
Deals
Frequently asked questions about Carbon13
What AI companies has Carbon13 invested in?
Carbon13's AI investments include TetraxAI. The 1 round on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Carbon13 based?
Carbon13 is based in Cambridge, England, United Kingdom.
What stage does Carbon13 invest at?
In the rounds tracked on AI Lounge, Carbon13 has invested at Pre-seed, with a median round of $1M.
Who does Carbon13 co-invest with?
Carbon13's most frequent co-investors on AI Lounge are The Footprint Firm (1 deal) and Norrsken Evolve (1 deal).
How can founders reach Carbon13?
Founders on AI Lounge can see Carbon13'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 Carbon13 to their Investor Pipeline to track the conversation.