About Carbon13
Carbon13, an accelerator and incubator program founded in 2019, is based in Cambridge, United Kingdom. With a presence in 4 countries, it has supported around 17 startups in sectors like High Tech, Energy Tech. Most notable companies in
its portfolio include Kita, PuriFire Energy and SamudraOceans. The program is backed by a team of 56 people who primarily support Seed startups based in United Kingdom. Its latest investment was a $615K Seed round in Pure Capture Innovations on Sep 01, 2026, which also saw participation from SFC Capital and British Business Bank.
Key Metrics
Founded Year
2019
Location
Cambridge, United Kingdom
Portfolio Companies
Sectors of Investment
Stages of Investment
Seed & Series A
Locations of Investment
Carbon13's List of Top Investments
Carbon13 has a portfolio of 17 companies. Their most notable investments are in Hexseedtechnology and Nium.Their portfolio spans across United Kingdom, Spain, Belgium and 1 more locations. They have invested in High Tech, Energy Tech, Enterprise Applications and 12 other sectors, across stages such as Seed, Series A stages. Here is the list of top investments by Carbon13:
1. Kita
Online platform for carbon insurance. It offers parametric insurance products including asset-carbon offsets. It also accelerates the development of high-quality solutions to fight the climate crisis. It also provides solutions to remove carbon from the atmosphere.
Key facts about Kita
- Founded Year: 2021
- Location: London (United Kingdom)
- Valuation: $*****
- Stage: Seed
- Total Funding till date: $10.2M
- Employee Count: 346 as on Sep 30, 2026
- Investors: Octopus Ventures, Lloyd’s Lab Accelerator and 22 Others
- Latest Funding Round: Seed, Feb 22, 2023, $*****
- Highlight: Editors' Pick
Developer of hydrothermal treatment technology converting wastewater into green hydrogen and biomethanol. The company’s proprietary reactors produce green hydrogen and carbon dioxide. This carbon dioxide is then converted into biomethanol through catalytic synthesis. The technology aims to decarbonize the shipping and chemicals industries by providing sustainable alternatives. The team includes engineers and scientists focused on scaling technologies.
Key facts about PuriFire Energy
- Founded Year: 2020
- Location: Cambridge (United Kingdom)
- Valuation: $*****
- Stage: Seed
- Total Funding till date: $4.88M
- Employee Count: 16 as on Sep 30, 2026
- Investors: Ukri, MNL Nominees and 11 Others
- Latest Funding Round: Grant (prize money), Aug 28, 2024, $*****
Seaweed farming using robotics, AI, and drones. It monitors farm conditions and crop health using remote monitoring robots. It provides monitoring robots equipped with sensors and cameras to scale seaweed farming.
Key facts about SamudraOceans
- Founded Year: 2022
- Location: London (United Kingdom)
- Valuation: $*****
- Stage: Seed
- Total Funding till date: $1.99M
- Employee Count: 11 as on Sep 30, 2026
- Investors: Village Capital, British Design Fund and 5 Others
- Latest Funding Round: Seed, Sep 25, 2024, $*****
Developer of robotic lab automation and artificial intelligence bioprocess models. This service utilizes high-throughput screening to gather data on microbial growth and protein expression. The collected information informs the creation of digital models that simulate fermentation conditions. These models allow for the virtual testing of parameters to predict outcomes such as biomass density, product yield, and cell viability. The process supports the optimization of media components, strain selection, and downstream processing configurations. By integrating automated data acquisition with predictive modeling, the system assists in the development of scalable and efficient fermentation workflows.
Key facts about Differential Bio
- Founded Year: 2024
- Location: Feldkirchen (Germany)
- Stage: Seed
- Total Funding till date: $2.16M
- Employee Count: 15 as on Sep 30, 2026
- Investors: Climate Capital, Ananda Impact Ventures and 4 Others
- Latest Funding Round: Seed, Mar 26, 2025, $*****
- Highlight: Editors' Pick
5. MannyAI
Developer of AI-powered platform optimizing fashion supply chain management processes. The platform provides tools for product development, industrial engineering, and factory management. It offers features such as automated bill of materials generation, operation breakdowns, and capacity planning. The platform also includes supplier matching, tech pack enhancement, and real-time critical path management. It aims to streamline sourcing, costing, and production planning for fashion brands.
Key facts about MannyAI
- Founded Year: 2023
- Location: West Dulwich (United Kingdom)
- Stage: Seed
- Total Funding till date: $1.33M
- Employee Count: 14 as on Sep 30, 2026
- Investors: Innovate UK, Ukri and 5 Others
- Latest Funding Round: Grant (prize money), Nov 21, 2024, $*****
- Highlight: Editors' Pick
Carbon13's Year-on-Year Investment Trends
Carbon13 has invested in 17 companies over the last 4 years, with an average of 4 new investments annually in the last 3 years. In 2025, it made 1 investment, while as of Sep 2026, it has made 5 investments in this year. Its most recent first time investment was in Pure Capture Innovations and most recent follow-on round was in Kita.Year | No. of Investments | ||
|---|---|---|---|
1st Round | Follow-on | Total | |
2026 (YTD) | 5 | 0 | 5 |
2025 | 1 | 0 | 1 |
2024 | 4 | 0 | 4 |
2023 | 4 | 1 | 5 |
2022 | 1 | 0 | 1 |
Carbon13's Investments by Stage
Carbon13 has made 14 investments in Seed stage with an average round size of $1.28M and 1 investment in Series A stage with an average round size of $934K.Stage of entry | No. of Investments |
|---|---|
Seed | 14 |
Series A | 1 |
Note: We have considered here, only first round of investments
Carbon13's Investments by Sector
Carbon13 has a diverse portfolio, with companies operating in the Sustainability Tech, Environment Tech, High Tech, Energy Tech and Enterprise Applications. Notably, it has invested in 15 Enterprise (B2B) companies, 13 Tech companies, 5 Software companies and at least 3 companies focusing on Social impact.Sector | No. of Investments |
|---|---|
Sustainability Tech | 10 |
Environment Tech | 7 |
High Tech | 6 |
Energy Tech | 5 |
Enterprise Applications | 4 |
Others | 14 |
Note: We have considered here, only first round of investments
Carbon13's Investments by Geography
Carbon13 has made most investments in United Kingdom (10), followed by Spain where it has made 2 investments.Country | No. of Investments |
|---|---|
United Kingdom | 10 |
Spain | 2 |
Belgium | 1 |
Germany | 1 |
Note: We have considered here, only first round of investments
Carbon13's recent investments
Carbon13 has made 5 investments in 2026 so far. Pure Capture Innovations and Hexseedtechnology are the latest among them.Here are the most recent investments by Carbon13:
Date | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Sep 01, 2026 | United Kingdom | Seed | 8329 | [+1] | |
Aug 21, 2026 | - | Seed | 3147 | ||
Jun 16, 2026 | Belgium | Seed | 6379 | [+1] | |
Apr 08, 2026 | United Kingdom | Seed | 4872 | [+1] | |
Jan 29, 2026 | Spain | Seed | 7063 | [+1] |
Team profile of Carbon13
Carbon13 has a team of 56 members including 4 Partners, 11 Venture Partners and 8 Principals located in United Kingdom, Germany and 4 more locations. Carbon13's team sits on the board of 1 company.Here is a list of top team members in Carbon13:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | Berlin | - | ||
Partner | Cambridge | - | ||
Partner | Vienna | - | ||
Partner | Cambridge | - | ||
Venture Partner | United Kingdom | - | - | |
Venture Partner | Bristol | - | - | |
Venture Partner | - | - | ||
Venture Partner | London | - | ||
Venture Partner | Munich | - | - | |
Venture Partner | London | - | ||
Venture Partner | London | - |
Co-investors of Carbon13
Over the past 4 years, 52 investors have co-invested in Carbon13's portfolio companies. This includes funds and angels.
- Invested before Carbon13: Norrsken Evolve has invested before Carbon13.
- Top Co-investors of Carbon13: 42 investors entered a company along with Carbon13. These include investors like SFC Capital (3 companies).
- Invested after Carbon13: A total of 9 investors have invested in Carbon13's portfolio after their investments. Top Investors include Octopus Ventures (1 company) and Chaucer (1 company).
Recent News related to Carbon13
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HexSeed raises over £600,000 in early-stage fundingSemiconductor Today•Aug 20, 2026•Carbon13, Net Zero Technology Centre
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ISC3 and Carbon13 Partner for Sustainable Chemistry Innovation SupportCision•May 21, 2026•Isc3, Carbon13
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TetraxAI closes a pre-seed round of 1.2 million euros led by The Footprint FirmEl Referente•Jan 29, 2026•Norrsken Evolve, Tetrax, Carbon13, NeoTec Manufacturing
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Differential Bio Secures €2 Million in FundingMunich•Mar 28, 2025•Differential Bio, CDTM, Better Ventures, Climate Capital and 3 others
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Munich Startup Differential Bio Raises €2 Million to Transform Biomanufacturing With AIVegan Business Magazine•Mar 26, 2025•Differential Bio, Ananda Impact Ventures, ReGen Ventures, Carbon13 and 3 others
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Syndicate Room: Final chance to invest in Carbon13’s climate-focused SEIS fundMar 04, 2025•Syndicate Room, Carbon13
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MannyAI Raises €1.5 M to reduce overproduction in the fashion industryTech.eu•Nov 21, 2024•MannyAI, Dreamcraft Ventures, Ukri, Alante Capital and 3 others
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Six-Figure Equity Investment to Help Optimise Energy ManagementGreen Economy•Jul 24, 2024•Optimise, Development Bank of Wales, Carbon13

