Cambridge · Pre-Seed–Series A · 6 people tracked
Investment thesis
OnePlanetCapital invests in UK-based climate tech and environmental businesses actively addressing climate change and major environmental challenges. It targets pre-seed and seed B2B companies eligible for SEIS/EIS advanced assurance, spanning energy technology, recycling, transport innovation, AI, B2B SaaS, and the built environment. The firm backs both pre-revenue and post-revenue companies, helping them reach their first £1m in revenues and scale toward £10m+ by building operations, infrastructure, and funding strategy. It looks for evidence of solving a significant climate problem and proof of value to potential customers, writing checks from £25k to £500k. The team consists of entrepreneurs who have built and sold their own businesses.
Source: firm website, verified Aug 3, 2026.
Team · 6 people
from the firm's websiteWhat they invest in
from 43 of 53 portfolio companiesCleantech ×26Climate Tech ×18Energy ×15Circular Economy ×14New Materials ×10Deep Tech ×9AI & Machine Learning ×7SaaS ×7
HQs:United Kingdom×29
Who they back
founder profiles across 18 portfolio companiesFounding team size:solo founder×92 founders×73 founders×14+ founders×1
Investments · 53 tracked
founders shown can be your intro pathForge Minerals converts carbon dioxide from biogenic emissions into high-purity magnesium carbonates using advanced chemical processes.
CleantechClimate TechNew MaterialsEdinburgh, GB
Ian Spencer(Co-founder | CEO)inSylvain Petitgirard(Co-founder | CSO)inMatthew Vaughan(Co-founder | COO)in
Co-investorsSustainable VenturesOld College CapitalScottish EnterpriseCarbon13
Adaptavate develops bio-based, drop-in building materials designed to reduce or remove CO₂ emissions in construction, including Breathaboard (a wallboard alternative) and Breathaplasta (lime-based plasters).
Climate TechConstruction TechNew Materials
Thomas Robinson(Founder & CEO)
Co-investorsPerivoli Innovations
Agreka Build develops sustainable building materials from agricultural waste, focusing on circular economy solutions for the construction industry.
AgTechCircular EconomyCleantechClimate TechConstruction TechNew MaterialsCheshire, GB
Antoinette Oni(Co-Founder & CEO)My Linh Nguyen(Co-Founder & COO)Han Ming Lai(Co-Founder & CTO)Dr. Vu Viet Dung(Co-Founder & Advisor)
AirEx makes Floorvent, a smart underfloor ventilation and draught-proofing product that reduces heat loss through suspended floors, improving SAP scores and EPC ratings.
CleantechClimate TechEnergyIoTPropTech
Co-investorsSustainable VenturesBritish Business BankBayes Entrepreneurship Fund
Anzen develops thermoelectric heating, cooling, and ventilation technology for residential buildings to reduce carbon emissions cost-effectively.
CleantechClimate TechEnergyHardware
Michael Reid(CTO)
BoardSaffa Riffat(President of World Society of Sustainable Energy)
Co-investorsSustainable Ventures
Arra builds software for acquiring renewable energy infrastructure, providing verified data and due diligence tools to speed up asset transactions and deal closings.
B2B MarketplacesCleantechEnergySaaS
Birl provides fully managed inventory recovery and circular resale solutions for fashion and retail brands, converting unsellable, damaged, or excess stock into revenue through AI-powered listing, dynamic pricing, and resale distribution.
AI & Machine LearningCircular EconomyE-commerceRetail Tech
Cam(Co-Founder)Peter(Co-Founder)
Carbon Cell is a team of designers, engineers, and scientists developing sustainable materials aimed at reducing plastic use and carbon emissions.
Circular EconomyCleantechClimate TechDeep TechNew Materials
Elizabeth Lee(CEO)Eden Harrison(COO)Ori Blich(CPO)in
Co-investorsCounteractGreen Angel VenturesHERmesa
Clyde Hydrogen develops modular hydrogen production systems ranging from 100kW to 100MW+ for applications including emergency backup power, industrial energy storage, and mobility refueling.
CleantechDeep TechEnergyGlasgow, GB
Prof Mark Symes(CTO)Dr Matt Lees(CEO)Dr Jos Trehern(CSO)
Deep Blue Biotech develops sustainable chemicals by re-engineering cyanobacteria to convert CO₂ into high-value molecules, using AI-driven metabolic modelling.
BiotechCleantechNew Materials
Tim Corcoran(Chief Executive Officer)inLucia Burdisso(Chief Scientific Officer)in
Co-investorsCarbon13Sustainable Ventures
Co-investorsBritish Design Fund
Earthly operates a marketplace connecting buyers with nature-based investment projects focused on carbon removal, biodiversity restoration, and community livelihoods across global ecosystems.
Circular EconomyClimate TechEnterprise SoftwareImpact & Social GoodMarketplacesSaaS
Oliver Bolton(Co-founder & CEO)Lorenzo Curci(Co-founder & CCO)
Ecodetect provides AI-powered environmental monitoring systems for offshore energy infrastructure, including wind, tidal, solar, and oil and gas installations, with services spanning consulting, equipment procurement, installation, and compliance reporting.
AI & Machine LearningCleantechClimate TechEnergyImpact & Social GoodIoT
David Gold(Founder & CEO)
Electron provides grid-aware analytics and flexibility market coordination software that helps distribution utilities and network operators make distributed energy resource (DER) flexibility visible, verifiable, and tradeable.
CleantechEnergySaaSLondon, GB
Co-investorsSystemiq CapitalEast InnovateSYSTEMIQ
Co-investorsG-Force
Float Energy provides digital twin software for the hydrogen industry, integrating real-time forecasts of power prices, renewable generation, and CO₂ grid intensity to optimize green hydrogen production for lower cost and higher sustainability.
CleantechClimate TechEnergySaaS
Future Greens builds advanced anaerobic digesters that convert organic waste into biogas energy, targeting breweries and food manufacturers.
AgTechCircular EconomyCleantech
GT Wings builds AirWing, a compact and modular wind-assisted ship propulsion system ("Jet Sail") that can be retrofitted to existing vessels or integrated into newbuilds to cut fuel use, emissions, and compliance costs.
CleantechClimate TechHardware
Co-investorsBlackfinch Ventures
Hychor develops HySET, an electrochemical technology that produces green hydrogen from seawater and renewable electricity, reducing reliance on freshwater and grid connection.
CleantechDeep TechEnergyAberdeen, GB
Jani Shibuya(Chief Executive Officer & Founder)inAlex Colledge(Chief Operating Officer & Co-Founder)in
Co-investorsSustainable Ventures
Co-investorsBlackfinch VenturesMoonstone Venture Capital
Komodo Energy operates a platform called Shuffle that enables energy flexibility by adjusting demand on heat assets like heat pumps and hot water tanks to match renewable energy generation patterns.
CleantechClimate TechEnergy
Lineat develops advanced fibre-forming technology (AFFT) for manufacturing recycled carbon fibre products, including sporting equipment.
Advanced ManufacturingCircular EconomyDeep TechNew MaterialsBristol, GB
Dr. Lourens Blok(CTO, Co-founder)Gary Owen(CEO)Luis Cunha(Director of Engineering)
Co-investorsFuture Planet CapitalOxford Investment Opportunity Network (OION)UK Innovation & Science Seed Fund
Marinatex creates plastic-free coatings and films derived from seafood processing byproducts that are designed to biodegrade safely.
BiotechCircular EconomyCleantechNew Materials
Lucy Hughes
Co-investorsCOREangelsSouth East Angels
Mater-AI designs novel thermoelectric materials using AI, physics-based modelling, quantum methods, and lab validation, aiming for higher efficiency without toxic or rare earth elements.
AI & Machine LearningDeep TechNew Materials
Co-investorsTwin Path Ventures
MDF Recovery develops patented technology to recycle MDF and panel board waste into clean wood fibres for reintegration into panel production or sustainable products like insulation.
Advanced ManufacturingCircular EconomyCleantechUK, GB
UK parent company of the Cress and DICE platforms for accessing, using and managing school and organisational uniforms.
A company offering autonomous drone inspection solutions for manufacturers, particularly for turbine maintenance on onshore and offshore facilities, with AI-powered data analytics and predictive maintenance tools.
AI & Machine LearningDeep TechEnergyRobotics
Co-investorsMetavallon VC
RAD engineers advanced systems architecture for next-generation marine platforms, serving the offshore, defence, and oceanographic sectors.
Deep TechDefense TechHardwareMobility & Transportation
Rich Daltry(Co-founder / director)Dan Hook(Co-founder / CEO)
A waste-to-energy innovator that produces a catalyst to enhance biogas and renewable natural gas plant performance, increasing methane yield and operational efficiency.
AgTechCleantechClimate TechEnergyUK, GB
Ben Pluke(CEO)
Regeno develops modular, plug-and-play wind turbines designed for rapid deployment and lower costs than traditional systems.
CleantechEnergyHardwareUnknown - not stated on page, GB
Renew Risk provides science-based risk modelling and analytics focused on renewable energy infrastructure, covering financial risk, engineering failures, and natural catastrophe exposure.
CleantechEnergyInsurTechLondon, GB
Ashima Gupta(Founder)
Co-investorsInsurtech Gateway FundMolten Ventures
Rollr manufactures natural deodorants and antiperspirants with zero-waste refillable concentrate format, sold directly to consumers with decorative gemstone-topped packaging.
Circular EconomyConsumerDirect to Consumer
SmartResilience offers a climate risk management platform that combines historical datasets with climate modelling to quantify physical risks (floods, storms, wildfires) across current and future scenarios, rank adaptation measures by ROI, and produce audit-ready disclosures for standards such as IFRS S2, TCFD, CSRD, ASRS and UK SRS.
Climate TechEnterprise SoftwareImpact & Social GoodInsurTechSaaSLondon, GB
Snugg operates an online platform that generates personalised home energy efficiency plans from a postcode, helping UK homeowners find grants, trusted installers and payment options to cut fuel bills and reduce carbon emissions.
CleantechClimate TechConsumerEnergyPropTechEdinburgh, GB
Terasort builds fully automated robotic systems for material sorting and recycling, using AI and computer vision to process and separate material types in real time with high-purity outputs.
AI & Machine LearningCircular EconomyRobotics
TravelTime provides location APIs that process vast datasets to deliver accurate multi-modal travel times and spatial analytics for search, routing, and location intelligence applications.
AI & Machine LearningData & InfrastructureDeveloper ToolsLogistics & Supply ChainMobility & TransportationSaaSTravel & HospitalityLondon, GB
Charlie Davies(Co-Founder)Peter Lilley(Co-Founder)
Unio develops patented water treatment technology that uses centrifugal force to remove pollutants and suspended solids from water without barrier membranes.
CleantechClimate TechDeep Tech
VundaHaus makes patent-pending dry-fit cementitious brick facade panels that install without bricklayers or wet trades, marketed as an alternative to conventional external wall insulation (EWI) and brickwork.
Construction TechNew MaterialsPropTech
Adam SladerAlex Whitcroft
Co-investorsCarbon13
Portfolio news
latest coverage across their companiesSmartResilience · ukbaa.org.uk · Aug 17, 2026
Hychor · oneplanet.capital · Aug 12, 2026
Electron · investing.com · Jul 31, 2026
Forge Minerals · businessscotlandmagazine.com · Feb 11, 2026
Future Greens · leadsontrees.com · Dec 19, 2025
Reboxed · techfundingnews.com · Sep 3, 2025
Carbon Cell · carbonherald.com · May 16, 2025
Renew Risk · finsmes.com · Mar 3, 2025
Principals & officers · per Companies House
what is this? ⓘDirector · British · since 2020
Director · British · since 2023
Director · British · since 2020
Tripartite Capital Limited — 25–50% of shares, 25–50% of voting rights
Frequently asked questions
- How many investments has One Planet Capital made?
- One Planet Capital has 53 tracked investments.
- What stage does One Planet Capital invest at?
- One Planet Capital invests at the Pre-Seed, Seed, Series A stages.
- What is One Planet Capital's typical check size?
- One Planet Capital typically writes checks of $32K – $640K.
- What sectors does One Planet Capital focus on?
- One Planet Capital focuses on AI & Machine Learning, Biotech, Circular Economy, Cleantech, Climate Tech, Construction Tech, Energy, Impact & Social Good, IoT, Mobility & Transportation, SaaS.
- Where is One Planet Capital located?
- One Planet Capital is headquartered in Cambridge, GB.
- Who does One Planet Capital co-invest with?
- One Planet Capital most often shares deals with Sustainable Ventures, Carbon13, Blackfinch Ventures, among 21 tracked co-investors.
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