Often starting as experiments in the lab or software, climate tech needs to scale, be adopted by industry and become financially sustainable to succeed. Domain Expert Felix Rossknecht provides one-to-one support for our ventures, helping them turn innovation into a...
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.
Apply Now to The super advisor for ambitious climate startups
Applications Now Open Carbon13’s Venture Accelerator Programme
Investing in over 100 climate-tech start-ups since 2021, Carbon13 now offers a Venture Accelerator Programme.
Early-stage software or deep-tech-science start-ups: Move from building your
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 ACCELERATOR
The Venture Accelerator is for pre-seed startups looking to raise their first round and want a superadvisor accelerator to work on product/market fit, go-to-market and investment readiness.
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.
CO₂, Catalysts, and Clean Fuels
Ike Omambala and Raj Lakshman, CEO and CTO of COOloop talk about their metal-organic framework (MOF) catalyst that turns hydrogen and CO2 into e-ethanol. Learn about the unique industry benefits that would unlock cheaper e-ethanol in the road fuel, sustainable...
Recycling, Robots, Redesign, with TeraSort
Going past maximising efficiency to redesigning the process, Johnny Longden and Phil Worthington have used robots and AI to design a recycling module that does the entire sorting process. This allows waste sites can re-capture the value of their waste using a...
Carbon13’s SEIS Fund is Closing soon – Here’s Why It Matters
Carbon13's SEIS Fund X is closing at the end of October. You can download the brochure on Syndicate Room, but here's why early, exclusive access matters for this fund. *Don't invest unless you're prepared to lose all the money you invest. This is a high-risk...
Rowboats, not kayaks: Cohort 11 sets off in Cambridge
Carbon13’s Cohort 11 has started in Cambridge: 27 nationalities, 57% serial founders and a rowing lesson on the Cam that explains why we back teams.
Viridys bio, volatile organic compounds, visibility
Starting this time last year, Viridys Bio co-founders Stuart Dixon and Rotem Berman have already raised £792k in funding across grants and equity including investment from Carbon13. Their bio-tech solution detects Volatile Organic Compounds (VOC) that measure if a...
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.


















