Carbon13 invests £1.2m into eight ClimateTech startups

The eight companies funded through Carbon13’s first SEIS fund with Syndicate Room demonstrate that ClimateTech continues to attract the interest and commitment of leading founders.
The startups in the latest successful cohort are developing solutions across the built environment, law, automotive circularity, methane monitoring, biopolymers, renewable energy, AI, biotech and next generation hardtech solutions - an extremely broad and brightly coloured canvas.
The latest fundings bring the total amount Carbon13 has invested to over EUR 10 million.
Each company was launched via its Venture Builder programme, which brings together 80 individuals in each cohort who form co-founding teams.
This cohort saw record applications to the Venture Builder, demonstrating that world-class founders are still flocking to mission driven and ambitious startups, despite the VC headwinds of the last two years.
Leaders of the fund say that ClimateTech is adapting and evolving to meet investment headwinds as a horizontal and not a vertical. The backed ventures:
• Temperate is a next generation, sustainable, low cost, air-cooling technology for rental portfolios.
• Greenflip sources and analyses properties with high retrofit potential, providing instant investment analysis to capitalise on the zero energy bill premium.
• Jupiter Lex empowers legal professionals with AI-driven ESG litigation solutions, addressing the lack of corporate accountability for climate harm.
• Loop52 connect End of Life Vehicle (ELV) processors, Plastic Recyclers and OEMs to enable a traceable circular economy for Automotive Plastics.
• Lambda Quantech provides low-cost IoT sensors and an AI-driven analytics platform for real-time monitoring and quantification of fugitive methane emissions at biogas plants.
• Demeter Bio’s flagship product, MelioShield, is a next-generation biopolymer derived from black soldier flies, delivering a high-performance, sustainable alternative to synthetic materials across cosmetics, healthcare, packaging, and biotech industries.
• Orchid Solar is liberating renewables from fossil fuel backups, through capturing sunlight with thermal storage for both industrial and grid power.
– Fetch Energy – Power from the sea which doesn’t cost the earth. A breakthrough design for wave power generators for the maritime industry, to deliver wave power reliably and cost competitively, without reliance on grid infrastructure.
Nicky Dee, CEO and Co-founder, Carbon13, is thrilled by the rise and rise of the sector. She said: “The conversation in 2025 has been on where ClimateTech goes from here, what is its future, do we even call it ClimateTech? Well, ClimateTech has always been a horizontal not a vertical, and that horizontal is still evolving as the world’s approach to Net Zero evolves.
“I would say to founders, investors and innovators alike, when you look at ClimateTech, you’re really looking at deeply committed founders across every sector and there’s some obviously green plays like energy or emissions tracking – but they also include healthcare and law. Yes, a legal AI startup can be ClimateTech.”
“2025 has demanded a renewed focus on how we continue to work on the world’s most urgent problems – ambitious founders want nothing less. And protecting the Earth’s systems remains a magnet to these founders who are now looking to Europe. Cohort 7 exemplifies this, and we couldn't be more excited to have these ventures in our portfolio."
Tom Britton, Co-founder of Syndicate Room, added: “We're incredibly impressed by the range of ambitious ClimateTech companies the Carbon13 Fund VII has invested in. While all are aiming to do their part towards protecting Earth's vital systems, they represent a wide array of industries, technologies and approaches. These are exciting times."