Carbon13 — Full Portfolio

Bluemethane develops technology to measure, prevent and recover methane emissions from liquid systems such as wastewater treatment, anaerobic digestion and reservoirs.

CleantechClimate TechEnergy

LPLouise Parlons Bentata(Founder)in

Co-investorsAGAgFunder

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

ELElizabeth Lee(CEO)inEHEden Harrison(COO)inOBOri Blich(CPO)in

Co-investorsCOCounteract OneCRCreative Destruction Lab (CDL)INInnovate UK Investor PartnershipsONOne Planet CapitalCOCounteractGRGreen Angel Ventures+1 more

CBAMBOO provides advisory services and software to help companies manage compliance with the EU's Carbon Border Adjustment Mechanism (CBAM), analyse risk and reduce CBAM costs.

CleantechClimate TechEnterprise SoftwareSaaSLondon, GB

GRGabriel Rozenberg(Founder & CEO)in

Co-investorsPUPUSH VenturesPAPale Blue DotPRPrequel Ventures

Circular11 recycles waste-bound plastic into low-carbon fencing, furniture, and landscaping products such as plastic lumber for the construction and estates sectors.

Circular EconomyCleantechNew Materials

ConnorBGBenjamin Gibbons(Founder)in

Co-investorsTHThe FSE GroupSOSouth West Investment Fund

Coolrun develops technology and sustainable solutions for the global food logistics industry, focusing on reducing emissions and improving efficiency in cold chain operations.

CleantechClimate TechIoTLogistics & Supply Chain

BoardHugh Frost(Chairman)

Co-investorsGRGreen Angel Ventures

Deep Blue Biotech develops sustainable chemicals by re-engineering cyanobacteria to convert CO₂ into high-value molecules, using AI-driven metabolic modelling.

BiotechCleantechNew Materials

TCTim Corcoran(Chief Executive Officer)inLBLucia Burdisso(Chief Scientific Officer)in

Co-investorsONOne Planet CapitalSUSustainable Ventures

Differential Bio offers a virtual scale-up platform for bioprocess optimization, using robotic lab automation to gather microliter-scale fermentation data and AI models to simulate and optimize microbial growth, yield, and cost.

AI & Machine LearningBiotechRoboticsCincinnati, US

Christian(CEO & Co-Founder)Martin(Technical Co-Founder)inConrad VanLandingham(Executive Officer)DBDrew Barontini(Executive Officer)DWDavid Woody(Executive Officer, Director)inSean McCosh(Executive Officer)

Co-investorsANAnanda Impact VenturesBEBetter VenturesCLClimate CapitalREReGen Ventures

Eslando operates a digital marketplace connecting textile waste collectors, recyclers, and manufacturers to scale the circular textile supply chain.

B2B MarketplacesCircular EconomyClimate Tech

Forge Minerals converts carbon dioxide from biogenic emissions into high-purity magnesium carbonates using advanced chemical processes.

CleantechClimate TechNew MaterialsEdinburgh, GB

ISIan Spencer(Co-founder | CEO | Economist)inSPSylvain Petitgirard(Co-founder | CSO)inMVMatthew Vaughan(Co-founder | COO)in

Co-investorsONOne Planet CapitalSUSustainable VenturesOLOld College CapitalSCScottish Enterprise

Future Greens builds advanced anaerobic digesters that convert organic waste into biogas energy, targeting breweries and food manufacturers.

AgTechCircular EconomyCleantech

Co-investorsONOne Planet Capital

Havenwise offers software that automatically controls a home's heat pump based on energy tariffs, weather, and the home's heating behaviour to improve comfort and lower running costs.

Climate TechEnergyIoT

ANAlexander Nelson(Founder)in

Infyos provides a supplier mapping and compliance platform for developers, asset managers, and battery manufacturers to manage regulatory requirements including EU Battery Regulation, UFLPA, and CSRD, while enabling financing and lender due diligence.

CleantechEnergyFintechSaaS

Co-investorsCOConduit ConnectETETCapitalSASatgana

Ki Hydrogen develops a biomass electrolyser that combines renewable electricity with lignocellulosic biomass to co-produce green hydrogen and biogenic carbon.

CleantechClimate TechEnergyLondon, GB

KMKoji Muto(Co-Founder & CEO)inMSMichael Stanton(Co-Founder & CSO)in

Co-investorsG-G-ForceGIGiTV, Inc.

Limetrack develops IoT-connected "SMART" food waste bins with weighing, RFID access management, and blockchain-enabled digital tracking, paired with data analytics to help businesses reduce food waste, cut disposal costs, and comply with separated waste regulations.

Circular EconomyCleantechIoTCranleigh, GB

MatNex (Materials Nexus) is a materials design company that uses first-principles computation, machine learning, and materials engineering to design new materials to customer-defined performance and cost specifications, then owns and licenses the resulting material IP.

AI & Machine LearningDeep TechNew Materials

DJDr Jonathan Bean(CEO & Co-Founder)Dr Robert Forrest(CTO & Co-Founder)

Co-investorsETETCapitalMDMD One VenturesSASamos InvestmentsADAda Ventures

Mozaic offers an AI-native operating system that turns site-level ecological data into continuous, portfolio-wide nature-risk intelligence with audit-ready evidence.

AI & Machine LearningClimate TechSaaS

Sylvain Vaquer(Founder)in

Co-investorsRORockstartVOVolition Capital

Natural Building Systems manufactures ADEPT, a modular low-carbon construction system engineered for easy installation with optimized energy performance and indoor air quality.

Circular EconomyCleantechClimate TechConstruction TechNew Materials

Chloe Donovan(Managing Director)in

Offgrid.finance provides inventory financing to businesses, offering USD loans with risk assessments and loan agreements turned around within 24 hours based on the borrower's credit profile.

FintechLondon, GB

Paulina Sokolova(Founder)inTCTim Chambers(Founder)in

Co-investorsRORockstartANAnkur CapitalSHShell Ventures

Open Hydro develops technology to assess and mitigate greenhouse gas emissions from freshwater systems, including reservoir emissions, providing climate mitigation and resilience insights for hydropower utilities and water industries.

CleantechClimate TechEnergySaaSLondon, GB

Co-investorsECEcho River CapitalSUSustainable Ventures

Orchid Solar develops modular concentrated solar thermal technology, based on patented Oxford University optics, that focuses sunlight to produce industrial heat up to 1,000°C without burning fuel.

CleantechClimate TechEnergyEdinburgh, GB

PVParag Vyas(CEO & Co-founder)inDNDonald Naylor(CTO & Co-founder)in

Preoptima provides software for whole life and embodied carbon assessment, offering real-time carbon data to support low-carbon building design and planning compliance.

CleantechClimate TechConstruction TechLondon, GB

ARAileen Ryan(Founder)in

Reaforma develops carbon-negative cement by integrating novel power-cycles into cement production to remove the cost of carbon capture.

CleantechClimate TechNew Materials

MSMunraj Sembhi(Founder)in

Samudra builds an intelligence layer for the blue economy, developed by a team of ocean scientists, engineers and operators.

AI & Machine LearningClimate TechDeep TechIoT

JDJoyeeta Das(Founder & CEO)inDSDeepak Shakya(COO/CTO)inCTCorinne Thompson(Chief Financial Officer)

Co-investorsBRBritish Design Fund

Sun Bear Biofuture develops genetically modified yeast that produces oil through precision fermentation for sustainable food production.

BiotechClimate TechFoodTechOxford, GB

BWBen Wilding(CEO)inBen Williams(CTO)

Co-investorsUNUnruly Capital

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

ASAdam SladerinAWAlex Whitcroftin

Co-investorsONOne Planet Capital

xtonnes provides carbon accounting and decarbonisation software for product-led businesses and their supply chains, enabling organizations to measure, track, and manage progress toward net-zero emissions targets.

Climate TechEnterprise SoftwareImpact & Social GoodSaaS

AHAndy Hale(Founder)in