Fundraising FoxCambridge · Pre-Seed–Series A · 6 people tracked
Find your way into One Planet Capital
155 people in our graph share verified history with the One Planet Capital team — schools, employers, funds. One of them is your warm intro.
Investment thesis
One Planet Capital backs UK-based pre-seed and seed climate tech companies tackling climate change and environmental challenges across AI, software and hardware models with real-world impact. It targets B2B climate tech in areas such as energy technology, recycling, transport innovation, AI, B2B SaaS and the built environment, favoring businesses with SEIS/EIS advanced assurance. The firm writes checks of roughly £25k to £500k into pre-revenue or post-revenue companies (post-revenue where EIS applies), looking for evidence of solving a major climate problem and proof of value to customers. It helps founders reach their first £1m in revenue and build the operations, infrastructure and funding strategy to scale toward £10m+.
Source: firm website, verified Sep 27, 2026.
Team · 6 people
from the firm's website
What they invest in
from 45 of 54 portfolio companiesCleantech ×28Climate Tech ×20Circular Economy ×15Energy ×15New Materials ×11Deep Tech ×9AI & Machine Learning ×8Hardware ×7
HQs:United Kingdom×29
Who they back
founder profiles across 25 portfolio companiesFounding team size:solo founder×152 founders×73 founders×24+ founders×1
Where their founders studiedfrom 25 founders with education data
Cardiff University / Prifysgol Caerdydd ×2Durham University ×2Leeds Arts University ×2Saïd Business School, University of Oxford ×2The University of Edinburgh ×2University of Oxford ×2University of Southampton ×2
What their founders studiedfrom 23 founders with field-of-study data
Business & Management ×7Engineering ×5Design & Architecture ×3Economics ×2
Where their founders worked beforefrom 28 founders with career history
Arup ×2Ocean Infinity ×2
5 founders hold a PhD · 3 hold an MBA (of 25 with degree data)
Investments · 54 tracked
founders shown can be your intro pathBy year:2026 · 22025 · 22024 · 15 dated
Forge 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 | Economist)inSylvain Petitgirard(Co-founder | CSO)inMatthew Vaughan(Co-founder | COO)in
Co-investorsSustainable VenturesOld College CapitalScottish EnterpriseCarbon13
Mooncup is a reusable menstrual cup made from medical-grade silicone that collects menstrual fluid and can be worn for up to 12 hours, replacing disposable period products.
Circular EconomyConsumerDirect to ConsumerFemTech
Claire Lettice(Founder)in
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 InnovationsCounteractLow Carbon Innovation Fund
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)inMy Linh Nguyen(Co-Founder & COO)inHan Ming Lai(Co-Founder & CTO)Dr. Vu Viet Dung(Co-Founder & Advisor)
Co-investorsSFC Capital
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
Agnes Czako(Founder and CEO)in
Co-investorsSustainable VenturesBritish Business BankBayes Entrepreneurship FundGreen Angel Ventures
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-investorsGreen Angel VenturesSustainable VenturesAndreessen HorowitzCreator FundLocalGlobeSandbox Industries
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)inEden Harrison(COO)inOri Blich(CPO)in
Co-investorsCarbon13Counteract OneCreative Destruction Lab (CDL)Green Angel VenturesInnovate UK Investor PartnershipsCounteract+1 more
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)
Co-investorsZinc
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
Diode provides sales tools that help consumers make net-zero purchasing decisions through smart integrations, focusing on connecting renewable energy and electric vehicle solutions.
CleantechEnergySaaS
Jon Horsfield(Founder)in
Co-investorsAndreessen HorowitzBoxGroupCaffeinated CapitalY Combinator
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)inLorenzo Curci(Co-founder & CCO)in
Co-investors468 CapitalBessemer Venture PartnersInnovation EndeavorsUncorrelated Ventures
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)in
Co-investorsDevelopment Bank of WalesWales Angel Co-Investment Fund
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
Jo-Jo Hubbard FEI(Founder)in
Co-investorsSystemiq CapitalEast InnovateSYSTEMIQ
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
Co-investorsCarbon13
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
GT Wings develops AirWing, a compact and modular wind-assisted ship propulsion system (marketed as a "Jet Sail") that reduces fuel use, emissions, and compliance costs for shipowners.
CleantechClimate TechHardware
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
Kelpi makes a biodegradable, recyclable barrier coating derived from sustainably-farmed seaweed and vegetable oils, applied to paper, card and fibre packaging as an alternative to plastic.
Circular EconomyCleantechNew Materials
Co-investorsBlackfinch VenturesGreen Angel 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
LaundRe is a UK denim finishing hub that uses laser, ozone, and low-water nebulising wash technologies to re-finish, re-wash, and reshore jeans for brands, retailers, and recyclers.
Advanced ManufacturingCircular EconomyCleantechLondon, GB
Salli Deighton(Founder)in
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)inLuis Cunha(Director of Engineering)in
Co-investorsFuture Planet CapitalGreen Angel VenturesOxford 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
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.
NUUV develops water management products and services aimed at improving efficiency, control, and insight into water usage.
CleantechClimate TechDeep TechHardware
Dr Matt Simpson(Founder & CEO)inRobert Rasbach(Chief Financial Officer)Alister Renton(Chief Technology Officer)in
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-investorsBrookstreet Equity PartnersInvesting for Purpose AEDAKESMetavallon VCTSP Ventures
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)inDan Hook(Co-founder / CEO)in
Co-investorsThe FSE GroupVala Capital
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
Reboxed is an online retailer specializing in refurbished mobile devices such as the Samsung Galaxy A52 5G.
Circular EconomyConsumerE-commerceRetail TechLondon, GB
Phil Kemish(Founder)in
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 risk analytics and consultancy for renewable energy assets, helping developers, investors, lenders, insurers, and asset owners quantify and manage risks such as natural catastrophes, supply chain issues, and asset failure.
CleantechClimate TechEnergyInsurTechLondon, GB
Ashima Gupta(Founder)inSubhamoy Bhattacharya(Co-founder & Chief Scientific Officer)inJoshua Macabuag(Co-founder & CEO)in
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
Milo Pinckney(Founder)in
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.
AI & Machine LearningClimate TechEnterprise SoftwareImpact & Social GoodInsurTechSaaSLondon, GB
Co-investorsBayes Entrepreneurship FundThe FSE Group
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
Robin Peters(Co-Founder & CEO)inNeil Svensen(Co-Founder)in
Swytch designs and manufactures electric-bike conversion kits that enable riders to retrofit existing bicycles with electric assistance technology.
Climate TechConsumerHardwareMobility & Transportation
Co-investorsGreen Angel VenturesCrowdcubeSFC CapitalStartup Funding Club
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)inPeter Lilley(Co-Founder)in
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 SladerinAlex Whitcroftin
Co-investorsCarbon13
Zest Solutions provides an AI-driven platform that helps food and drink manufacturers reduce waste by providing real-time visibility into waste streams, predicting waste patterns, and automating redistribution of surplus food.
AI & Machine LearningClimate TechFoodTech
Dini McGrath(Founder)in
Co-investorsSouth East Angels
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
A pDemeter BioDemeterbioESG360°SkaiyVentrixVentrix LabsVerv
Portfolio news
latest coverage across their companiesPerceptual Robotics · finsmes.com · Aug 3, 2026
Agreka Build · agrekabuild.com · Jun 10, 2026
Future Greens · leadsontrees.com · Dec 19, 2025
Adaptavate · finsmes.com · Apr 23, 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 54 tracked investments, including 5 dated in the last 24 months.
- 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 $25K – $500K.
- 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, New Materials, 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 Green Angel Ventures, Sustainable Ventures, Carbon13, among 31 tracked co-investors.
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