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Carbon13 Europe

Launching the European Venture Builder programme  located in Berlin designed for those who are able to work within the EU.

Next cohort start date: 9th January 2024  

Become a founder of a high impact climatetech venture

Carbon13’s Venture Builder is expanding to Europe, located in Berlin, and linking the deep climatetech ecosystem in Cambridge with the heart of innovation in the EU. The programme is open to those who are currently able to work in the EU. 

Carbon13 Europe has one goal, to fast-track founders, from individuals with purpose to high performance teams building scalable climatetech ventures, each with the potential to reduce CO2e emissions by 10 million tonnes a year.

"Berlin is now one of the most attractive cities for climatetech entrepreneurs, thanks to its vibrant culture and location in the heart of the EU, a region leading the world in climatetech innovation, action, and investment. By building this bridge between Berlin and the Cambridge innovation hotspot, Carbon13 cohorts will be able to leverage both ecosystems. I'm very excited to see what our founders will build.
Michael Langguth
Cofounder of Carbon13, leading our work in Germany

Watch the recap of our launch in Berlin

You have the potential. Now make the progress.

Carbon13’s Venture Builder is for founders who are pre-investment or pre-team or even pre-idea.

You bring your talent and commitment to reducing CO2e emissions. We bring everything else you need to make progress on a venture. 

You do not need to be based in Berlin or Germany.

Applications are closed now for our Cohort 1 for Europe which starts 18th April 2023.

The next application phase for the second cohort for Europe – which starts in October – will open in June.

With our Venture Builder, you will:

  • Find a complementary cofounder and build a “dream team with the expertise, credibility, network and commitment to take an idea to market.
  • Actually make an impact on carbon emissions. This is Doing not Talking. 
  • Get past the prototype and transition technical ideas into a commercial success.
  • De-risk the startup building process. The planet doesn’t have time for false starts.

At a glance

Carbon13 Europe Cohort 1 will start on the 18th April 2023. Most of the Venture Builder is virtual, however there are mandatory in-person days in Berlin. The dates for Phase 1 are:

18-20 Apr, 2-4 May, 15-17 May.

Applications are open now. You will need to be able to work within the EU to apply for this programme. If that is not the case then please review our Cambridge Venture Builder programme which does take applications from both the UK and around the world. 

Structure of the Venture Builder

Our Venture Builder programme is delivered in three Phases over eight months.   

It’s an intense programme, dedicated to one purposehelping you take your potential and talent and turn it into a scalable venture that can significantly reduce CO2e emissions by delivering solutions to customers—whether consumers or enterprises. 

Below is a brief overview of the purpose of each Phase. To explore the programme structure in full, click below.

Phase 1: Teaming/Ideation (six weeks)

Phase 1 focuses on Teaming. You match with cofounders to form a team capable of building a game-changing venture which can reduce carbon emissions by millions of tonnes.

Although much of the venture builder will be delivered virtually, some of Phase 1 will be delivered face to face without streaming, and attendance in Berlin (Germany) for this part of the programme is mandatory. Other than that, it is for you and your team to decide how and where you will work.

The mandatory in-person component of Phase 1 for EU Cohort 1 is planned to be on the following dates in Berlin in 2023: 18 – 20 April, 02 – 04 May, and 15 – 17 May.

Only founders on the programme who successfully complete Phase 1 by forming a team will continue to Phase 2: Validation.  

Phase 2: Validation (nine weeks)

Phase 2 focuses on building proof points around the venture—especially its customers, the problem you are solving, and your value proposition.  

At the end of Phase 2, teams who have met our criteria for progress become eligible to present to the Investment Committee, who will decide which ventures receive £120,000 and continue to Phase 3. You can read more about how our investment works in our FAQs

Phase 3: Acceleration (four months)

Once you are in Phase 3, Carbon13 has invested in you and is your business partner.  We work with an incredible network of enablers in Cambridge and Berlin, and with our corporate and financial partners, to help you build customer traction and momentum for your venture, including preparing a funding strategy for post-Carbon13 life and helping you bring in the next round of finance.    

Your Founder Type

Each cohort on the Venture Builder is formed of four founder types to give the complementarities and depth that our ventures needAs part of the application process, we’ll ask you to help us understand which founder type best matches your profile, but of course, there is no such thing as a typical entrepreneur or team. If you want to build a venture that reduces carbon emissions, then to us, you’re a founder. 

Technical Founders (Science/Engineering): You are likely a scientist, an engineer, or someone with specialist technical knowledge relating to one of the CO₂e emitting sectors. You’ll be highly motivated to work on the biggest problems of Net Zero, and see entrepreneurship as your chance to build something significant. You may already be working on a prototype or IP, or wish to apply your skillset to the biggest challenges in decarbonisation. In a venture, you will likely be the CTO, responsible for leading the development of the technology to at least proof of concept stage.

Technical Founders (Software, Data & ML): This founder type is for software developers, data scientists, and/or AI/ML specialists. You may be relatively new to the Net Zero space but now relish the challenge of using your skills to reduce emissions and save the climate. You are not expected to have an idea and may be more interested in teaming up with a commercial or hard tech founder who’s bringing their own idea or expertise in a particular sector. Your age and experience are less important than your ability. In a founding team, you may take a CTO role, or a role similar to a Chief Data Officer or Chief Information Officer – leveraging the potential for data analysis, software, intelligent automation, and machine learning.

Commercial Founders: You have eight or more years post-Bachelors experience, either as a serial entrepreneur/in startups, or if you’ve gained your experience in industry, it will likely be in one of our “carbon emitting sectors”. You will be responsible for building the critical relationships the venture needs, and for leading the building of the execution team.

Venture Catalyst Founders: You have strong expertise and/or social capital in one of our target industries (energy, transport, buildings, agri/food, manufacturing) or a strong skillset in startups (sales, product management, design). We sometimes call these our “wild card founders”- if you are an extraordinary talent that doesn’t fit one of the other categories, this is where you fit.

Get a sense check

Should you apply to Carbon13 Venture Builder Europe? Talk to us to understand how Carbon13 could help you achieve your goals.

Fill out this short sense-check form and we’ll get in touch by email to discuss whether the Venture Builder is right for you.

Fill out this short sense-check form and we’ll get in touch by email to discuss whether the Venture Builder is right for you.

Or, come to one of our webinars and ask your questions about how Carbon13 works and who we look for. 

Find your cofounder

The first 6 weeks (Phase 1) of our programme is dedicated to you finding a cofounder who is both impact-driven and ready to start now.

You’ll join a diverse cohort of 70+ talented, purpose-driven individuals, all looking for a cofounder, all prioritising launching a venture.

During the 6 weeks you’ll be supported to build the right cofounding team for you, one which is complementary, has healthy teaming habits, and has the potential to execute a breakthrough venture for the climate. Click below to learn more about Carbon13’s approach to teaming.

Across our first two cohorts, over 90% of Carbon13 founders successfully joined a team in Phase 1.

Carbon13 is the only venture builder for the climate where you can do this.

Our ventures

Since 2021, we have invested in 32 ventures built through our programmes. To view our complete portfolio click here.

These ventures received investment from the Carbon13 SEIS Fund. Investors can find more information here.

Ready to join?

Kita’s purpose is to be a new type of insurance company. Our vision is to be the world’s first “carbon insurer”, covering the risk that carbon sequestration solutions under deliver against their promised carbon removal targets (“carbon delivery risk”).

BioZeroc are a biomaterials science company using biotechnology to create carbon-negative construction materials.

Materials Nexus is revolutionising how new low-carbon materials are discovered and developed using their AI platform.

Bluemethane is a technology company developing a breakthrough data platform and hardware solution to sense and capture methane emissions from water.


Preoptima is the world’s first AI platform for real-time carbon planning for buildings and cities. They enable high-accuracy carbon calculations during  the ideation process, and thus, drive carbon reduction of hundreds of megatons.