Tech Nation has unveiled the 25 innovative ClimateTech companies joining its 2026 Climate Programme.
Tech Nation, powered by Founder’s Forum Group – described as the UK’s leading growth platform and industry body for startups and their teams – selected high-potential companies tackling some of the most urgent challenges across food systems, industrial decarbonisation, energy, materials and nature restoration.
Collectively, the cohort has raised $250m+ in funding; works with global corporates including Microsoft, Shell, Salesforce, Heathrow, SUEZ and TotalEnergies; and represents a new generation of founders building commercially viable, scalable solutions to the climate and biodiversity crises.
The four-month growth programme accelerates high-potential tech startups that bridge the gap between climate innovation and industry. The programme supports leading ClimateTech companies to scale their impact by accessing the right investors and multinational customers, and by providing founders with a platform to advance climate policy and remove regulatory barriers.
Backed by Tech Nation’s Founding Partner, HSBC Innovation Banking, and Sage, this year’s Climate Programme showcases a diverse and global cohort.
The 2026 programme represents Tech Nation’s most mature programme to date, with companies having raised an average of £9 million, employing 370+ people collectively and 76% planning to expand internationally.
And 23 out of 25 companies are building in hardware or life sciences, signalling a shift toward deep tech climate solutions.
Established in 2020 as part of the UK Government’s Net Zero by 2050 strategy, the Climate Programme has built an incredible network of over 165 leading climate tech companies including Circulor, Foodsteps (acquired by Registrar Corp), Xampla, Olio, Electron and Ox Delivers.
Companies who have been part of the programme have raised 50% more than the industry average and alumni have raised over £1.5 billion since graduating.
Sammy Fry, director of climate and nature at Tech Nation, said: “As global competition around climate technologies intensifies, the UK and Europe has a critical opportunity to lead.
“This cohort demonstrates the strength of our ecosystem. Founders are building solutions that address not only emissions, but energy security, resource constraints and industrial resilience on a global stage.”
The 2026 cohort
Allye Energy – Cloud-connected energy storage enabling distributed power systems
Aquanzo – Organic waste sustainable nutrition for aquaculture, pets and food systems
Bactery – Clean electricity generated from soil
Biozeroc – Developing carbon-negative cement alternatives to decarbonise construction
Epoch Biodesign – Using enzymes to break down plastic waste
Finmile – Optimising delivery operations through intelligent routing and logistics software
Fornax – Simplifying low-carbon heating with integrated systems and flexible payments
H2CHP – Fuel-cell efficiency at generator cost
JUICY – Enabling home energy storage to support decentralised renewable power
Kavaken – Making renewable energy more profitable by combining analytical AI & GenAI
Modern Synthesis – Engineering biomaterials to replace resource-intensive materials
Natural Building Systems – Enabling homes that are healthier and kinder to the planet
NetZeroNitrogen – Reducing agricultural emissions through nitrogen solutions
Odqa – Harnessing solar energy to deliver industrial heat without carbon emissions
Origen Carbon – Capturing & permanently removing carbon dioxide from the atmosphere
Porpoise Power – Generating tidal energy through underwater propulsion systems
Pyri – Detecting wildfires early through bio-based sensing and real-time monitoring
Rensair – Reducing energy consumption of ventilation, while improving indoor air quality
Sorted – Scaling intelligent waste sorting and measurement infrastructure
Tewke – Monitoring and optimising household energy through smart connected systems
Treeconomy – Quantifying and unlocking the value of nature-based carbon removal
Vertus Energy – Producing renewable natural gas from organic waste streams
Vuala – Streamlining food waste recycling for households and businesses
WASE – Converting waste into energy through advanced bioelectrochemical systems
Xampla – Creating innovative materials from plant proteins to replace single-use plastics