Carbon13

Carbon13 is a venture builder focused on addressing the climate emergency by helping founders create scalable startups that contribute significantly to reducing carbon emissions. Based in Cambridge and Berlin, Carbon13’s programs support entrepreneurs from the earliest stages of ideation through to pre-seed investment. Their goal is for each venture to eventually reduce 10 million tonnes of CO2e annually once scaled. The organization has launched over 70 climatetech ventures since 2021, including notable startups like Kita, which offers the world’s first carbon removal insurance, and Materials Nexus, which uses AI and quantum mechanics to design low-carbon materials​. Carbon13's venture builder program focuses on both technical and commercial founders, fostering collaborations between scientists, engineers, and entrepreneurs to build impactful solutions. Participants gain access to a vast network of domain experts and investors, including partnerships with organizations like Barclays and EY. The program emphasizes a dual focus on achieving commercial success and measurable carbon reduction. The fund actively invests through its SEIS Funds, targeting ventures that align with its mission of achieving net-zero emissions by 2050.