One Planet Capital
Venture capitalCambridge · 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 37 of 53 portfolio companiesCleantech ×22Energy ×14Climate Tech ×13Circular Economy ×9New Materials ×9Deep Tech ×7AI & Machine Learning ×6SaaS ×6
HQs:United Kingdom×22
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)Sylvain Petitgirard(Co-founder | CSO)Matthew Vaughan(Co-founder | COO)
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)
AGREKA BUILD is a UK-based material innovation company that turns agricultural straw waste into thermal and acoustic building insulation, sold under the WHEATEX brand.
Circular EconomyConstruction TechNew Materials
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
Anzen makes a solid-state, thermoelectric climate control system that provides heating, cooling, and fresh air on a per-room basis without refrigerants, compressors, or outdoor units.
CleantechEnergyHardware
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
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)
Clyde Hydrogen is a University of Glasgow spinout developing a decoupled electrolysis technology that produces hydrogen and oxygen from water in separate locations and at different times using a patented liquid mediator, which can store hydrogen and generate it at high pressure without a compressor.
CleantechDeep TechEnergyGlasgow, GB
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)Manuel Rios(Chair of Innovation)
Diode provides a white-label digital platform that helps automotive and banking organisations offer their customers personalised insights and recommendations for Net Zero purchases such as EV charge points and solar.
CleantechEnergySaaS
Earthly runs a marketplace and subscription platform that lets businesses invest in nature-based projects delivering carbon removal, biodiversity restoration and community benefits through carbon and biodiversity credits, tree planting and project origination.
Climate TechImpact & Social GoodMarketplaces
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
Loopi (gothrift.co.uk) is an online marketplace for second-hand clothing where users buy pre-loved fashion and sell items they no longer want.
Circular EconomyE-commerceMarketplaces
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)Alex Colledge(Chief Operating Officer & Co-Founder)
Komodo Energy offers an on-site energy management platform that optimises electrified heating and cooling systems, integrating with solar PV, batteries, and EV chargers to lower electricity costs and increase carbon savings.
CleantechClimate TechEnergy
MarinaTex develops natural polymer materials such as films, coatings, and dissolvables intended to replace plastic while matching plastic-like performance and fitting into existing manufacturing systems.
Circular EconomyCleantechNew Materials
MDF Recovery develops technology that recovers and cleans high-quality wood fibres from waste MDF and particle board using a low-energy, low-water, chemical-free process that integrates into existing panelboard manufacturing lines.
Advanced ManufacturingCircular EconomyCleantech
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)Robert Rasbach(Chief Financial Officer)Alister Renton(Chief Technology Officer)Dr Olivier Autin(Lead Process Scientist)
Perceptual Robotics provides AI-powered autonomous drone inspection for wind turbines, including self-service drone inspections, piloted inspection services, data ingestion, and AI-driven damage detection and reporting.
AI & Machine LearningEnergyRobotics
RAD develops electric marine propulsion systems and autonomous surface platforms engineered for the marine environment.
Deep TechHardwareMobility & Transportation
RAFT Energy makes engineered biochar products (ActiCH4R and ActiSense) from green wood waste to increase biogas methane yield, reduce ammonia emissions in animal housing, and recover nutrients from liquid waste streams.
AgTechCleantechEnergy
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
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
Robin Peters(CEO & Co-founder)Neil Svensen(Co-founder)
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
Terrafend develops a patented aqueous industrial cleaning technology that replaces hydrocarbon solvents, caustics, and heated solutions to remove coatings, oils, greases, resins, adhesives, and sealants from metal and other substrates.
Advanced ManufacturingCleantechNew Materials
TravelTime provides an API for calculating real-world travel and commute times, enabling developers to build location-based features such as commute-time search, filtering, and geospatial analysis.
Data & InfrastructureDeveloper ToolsSaaS
Unio develops patented water treatment technology that uses centrifugal force to remove pollutants and suspended solids from water without barrier membranes.
CleantechClimate TechDeep Tech
An AI-driven platform that gives food and drink manufacturers visibility into their waste streams, with tracking, real-time alerts, and predictive analysis to identify inefficiencies.
AI & Machine LearningClimate TechFoodTech
Dini McGrath(Founder)Daniel Mezzina-Samuels(Fractional Advisory CTO)
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
- 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.
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