Carbon13

Carbon13 is a distinctive venture builder based in Cambridge, United Kingdom, specifically designed to address the climate emergency by fostering high-impact climate tech startups. Unlike traditional venture capital firms, Carbon13 operates as an accelerator that brings together aspiring founders, scientists, and entrepreneurs to develop innovative solutions from the ground up. Their core mission is to launch ventures with the potential to collectively abate at least 500 million tonnes of CO2e. They focus on creating scalable businesses that can significantly contribute to decarbonization and climate resilience across various sectors.

The organization runs a rigorous Venture Builder Programme, typically spanning several months, where participants are guided through idea validation, team formation, business model development, and fundraising preparation. Carbon13 provides a structured environment, mentorship, and access to a network of climate experts and investors. Upon successful completion of the program and the formation of a viable venture, Carbon13 makes an initial pre-seed investment. This first cheque is typically £50,000, which translates to approximately $63,000 USD, provided in exchange for an equity stake.

Carbon13's model is designed to de-risk early-stage climate ventures, making them more attractive for subsequent funding rounds. Since its inception, Carbon13 has supported over 200 founders, leading to the launch of more than 50 climate-focused companies. These ventures often go on to raise significant follow-on capital from a broader network of angel investors and venture capital firms, leveraging the foundational support and strategic guidance received during their time with Carbon13. Their unique approach positions them as a crucial early-stage catalyst for climate innovation, bridging the gap between scientific discovery and commercial viability.