Carbon13

Carbon13 serves as a dedicated venture builder addressing the climate crisis through entrepreneurial innovation. Established with the mission to support thousands of entrepreneurs, the organization focuses on developing ventures capable of significantly reducing carbon emissions—specifically targeting businesses with potential to decrease or eliminate at least 10 million tonnes of CO2e annually at scale. Since its founding, Carbon13 has cultivated a reputation for identifying and nurturing climate-focused startups across diverse sectors including agriculture, renewable energy, construction, food systems, and materials science.

The investment portfolio of Carbon13 has grown impressively since 2021, encompassing 64 climate-tech startups with a combined valuation of £140 million. These portfolio companies are collectively working toward an ambitious goal of 500 million tonnes of emissions reduction by 2040, demonstrating Carbon13's commitment to measurable climate impact. The venture builder typically engages with early-stage companies, providing not only capital but also specialized mentorship and resources tailored to scaling climate solutions effectively.

Among Carbon13's notable portfolio companies are several breakthrough innovators addressing different aspects of the climate challenge. Kita has pioneered carbon insurance solutions, while Biozeroc focuses on agricultural carbon sequestration technologies. Other successful alumni include Infyos, Nium, and Bluemethane, which addresses methane emissions from water bodies. Samudra Oceans, Cocoon Carbon, and Tierra Foods represent the venture builder's investments in ocean-based solutions, carbon capture, and sustainable food systems respectively. Additional portfolio standouts include AED Energy, Preoptima, and Kestrix, each targeting specific decarbonization opportunities.

Carbon13 operates through a cohort-based model, regularly opening applications for new climate entrepreneurs seeking support and investment. The venture builder employs a rigorous selection process to identify founders and innovations with the highest potential for carbon impact. Beyond financial backing, Carbon13 provides technical expertise, market access strategies, and connections to follow-on investors—creating a comprehensive support ecosystem for climate-tech startups. Entrepreneurs interested in joining this climate-focused venture building program can register for upcoming cohorts through the organization's website, carbonthirteen.com, where they can access application details and program information.