Entrepreneurs in Residence (EIRs) are our closest circle of supporters. From Phase 2 onwards, they are mentors and sparring partners for our teams and bring a wealth of experience from entrepreneurship and technical understanding. We would like to introduce you to our...
Carbon13 builds and backs ventures addressing Earth’s critical life support systems. Initially this means addressing the most urgent problem of our time – climate change.
Determined People
The climate crisis needs determined founders committed to this challenge, including scientists, engineers, and serial entrepreneurs. The average age of our cohorts is 37, and a third hold PhDs.
CARBON AT OUR CORE
Every startup we build has the potential to reduce or remove CO₂e emissions by net 10 million tonnes per year when at scale.
OUR MISSION IS CLIMATE
Our community is rooted in our mission to fight the climate emergency, and driven by our scalability ethos. This is where climate tech startups will succeed on a global scale.
FROM CAMBRIDGE TO BERLIN
Our Cambridge origins have taught us the importance of commercial, carbon and scientific understanding. Our growth to Berlin fuels our ecosystem of domain expertise, investors, and partners.
Read our latest impact report
At Carbon13, our focus is not only on Carbon emissions or protecting Earth’s systems for the sake of Impact alone. Developing a scaling mentality from day one is essential to tackling an urgent and sizable problem—one that is increasingly shaped by the growing commercial drivers emerging from the fact that the cost of inaction on climate change now outweighs the cost of action. This dual imperative continues to shape how we support founders in building ventures that are both impactful and resilient.
OUR APPROACH TO CARBON STARTS WITH PEOPLE
Million tonnes (net) of CO2e – the potential annual mitigation of each Carbon13 venture
Number of invested ventures built through our programmes since 2021
Number of founders developed through our programmes
Number of Domain Experts working with our ventures
Our Mission
We will select and support thousands of entrepreneurs to build ventures with the potential to mitigate over 400 million tonnes of CO2e per annum by 2040. We have set this target because humanity has just a few years to reduce our emissions and slow the pace of global warming, and the innovation delivered by entrepreneurs can play a significant role within this fight.
We simply don’t have time for founders to waste on dead ends or incremental solutions, or to build companies which don’t make a true impact on emissions. The future is Net Zero. Our startups are already building it.
listen to our podcast
Welcome to Carbon13’s podcast “Climate Takes” where we ask special guests for their “takes” on their industry and climate challenge, as well as setting a call to action, asking what will it take to solve the climate emergency?
Our Programmes
Whether you’re already a founder or ready to become one, explore our programmes to see how we’ll work with you to innovate on solutions for the climate emergency.
Venture Builder Cambridge
An eight-month programme for a cohort of 80 determined individuals from the UK and beyond, who don’t have a startup yet but want to find a co-founder and build a climate-tech startup.
Venture Builder Berlin
For founders resident in the EU, our Berlin Venture Builder combines the entrepreneurial and academic spirit of Cambridge with the DACH climate tech scene.
Venture Launchpad
The Venture Launchpad is a fully remote startup accelerator where teams work on their Carbon Case, their growth strategies, and their investment readiness for pre-seed and beyond.
News, raises & milestones
Learn more about Carbon13’s progress and community. Here we share fundraising news from our ventures, collaborations with our partners, and our own news, opinion, and milestones.
Carbon13’s Impact Report 2023-2024
Welcome to our second Impact Report, where we share data and insights into our impact during the years 2023 and 2024. The ONGOING COMMITMENT TO REPORT Our mission underpins everything we do at Carbon13. It was the founding stone of the company and it remains our...
Carbon13 invests in more breakthroughs in biotechnology and AI
Carbon13 is delighted to invest in five more high potential climatetech startups drawn from all three of our programmes: the Venture Builders UK and EU, and the Venture Launchpad.
The five ventures span diverse sectors such as agriculture, the built environment, infrastructure, and energy, and yet are unified by the use of two of the most exciting areas of research in the world today: AI and biotechnology.
Astracite Secures Investment to Turn CO₂ into High-Performance Battery Materials
Can carbon emissions become the building blocks of clean energy? Astracite, a cleantech startup born in Carbon13’s Berlin Cohort 3, believes they can—and they’re proving it. The Flemish venture has just secured €50,000 in funding from a BAN Flanders business angel,...
Two Carbon13 ventures on Cleantech Group’s 50toWatch List
We’re proud to announce that two of Carbon13’s portfolio ventures have been recognised by Cleantech Group as part of the prestigious 2025 “50 to Watch” list—highlighting the most promising early-stage companies driving innovation in climate tech. KI Hydrogen, born out...
Carbon13 invests in seven European startups
Carbon13 is delighted to announce investments into seven more high-potential cleantech startups. Three are alumni of our EU Venture Builder, testament to our mission to be Europe’s leading climatetech Venture Builder and the bridge for the EU-UK climatetech...
Our Upcoming Events & Webinars
Whether investor, partner or participant. We show you how Carbon13 is organised and look forward to your questions and ideas. Our regular webinars and in-person events offer a great opportunity to get to know us better.


















