Top 30 CleanTech Angel Investors in United Kingdom (May 2026)

Portfolio highlights

• Outverse — A community platform that's easier to use, better organised and designed for real interaction.
• CultureAI — Measure and improve human cyber risks and security behaviours to prevent security incidents. Go beyond security awareness training, start your free trial today.
• finway — finway provides financial guidence to SMEs, plan & control all expenses and budgets in one tool.

Portfolio highlights

• Karat Financial — Karat is the best card for creators, helping you save money, earn rewards, and grow your channel faster - because content IS a business.
• Config — Config combines engineering, operations, and manufacturing to simplify the large-scale shipment of high-quality hardware.
• Ristretto — Ristretto electric bikes - representing the pinacle of superior riding performance - the 512 combines design with sustainable luxury

Portfolio highlights

• Agnikul — Agnikul is a space tech startup that designs, manufactures, tests, and launch orbital-class rockets for micro and nanosatellites. They currently work out of the National Center for Combustion R&D at IIT-Madras. Rocket scientists, engineers, ex-bankers and space lawyers are a part of their team. This unique blend of people is one of theirbiggest strengths. The company was founded in 2017 and is based in Chennai, Tamil Nadu.
• Log 9 Materials — Log 9 Materials Scientific Private Limited is a graphene research and development company. At Log 9 Materials we are determined to accelerate the commercialization of graphene nanotechnology. We have just developed the first commercial product on graphene- 'Smoke-safe'. This innovative graphene based cigarette filter reduces the risk ofgetting cancer by 90%. We offer a wide range of graphene (CVD graphene, rGO) and its derivatives. We bring to you graphene as researchers and not just manufactures, so we understand the triviality of the grade of our products.
• Toffee Ride - Learning App for Classes I - IV — Toffee Ride is a learning App that is singularly focused on helping your child develop a thorough understanding of fundamental concepts.

Portfolio highlights

• Oxwash — Powered by Vanish, Oxwash provides on-demand laundry and eco-friendly dry cleaning services, creating a simple and sustainable laundry service for all.
• Papaya — Papaya offers platform to source, run and manage your electric vehicles.

Portfolio highlights

• Trezy — Trezy is smart & simple software the helps you manage your business with real-time finance insights & automated cash-flow forecasting.
• Basket — Basket lets you keep track of things you want to buy, automatically finding the best prices, saving you time and money. Say hello to your new shopping companion.
• Klasha — At Klasha, we're simplifying borderless payments for commerce in Africa. We help merchants worldwide sell online to Africa and receive payments in local African currencies while enjoying super fast last-mile delivery to customers across the continent.

Portfolio highlights

• Oxwash — Powered by Vanish, Oxwash provides on-demand laundry and eco-friendly dry cleaning services, creating a simple and sustainable laundry service for all.

Portfolio highlights

• Lick — Lick | Paints, Wallpapers and Supplies. Your Room, Covered
• By Rotation — Rent over 25000+ designer fashion items online from our free app. Discover luxury designer dresses, clothing, bags and accessories from your trending favorite brands.
• Anch.ai — Anch.AI is an Ethical AI Governance platform that helps you comply with EU regulations and avoid risks and penalties when developing and using AI as part of your business.

Portfolio highlights

• M3O — Explore the cloud as serverless building blocks
• Isometric — Isometric is a carbon removal registry and science platform
• DLT (short for data load tool) — the data loading library for python

Portfolio highlights

• Berri AI — A website made with Typedream.
• Anarchy — Anarchy builds a cloud platform for AI pioneers to build LLM tools augmented with external interactivity.
• Consensus — Consensus uses AI to extract and summarize scientific insights from peer-reviewed sources. For any question, what's the Consensus?

Portfolio highlights

• Uncapped — Uncapped is a provider of revenue-based financing that enables founders to raise growth capital without interest or equity.
• Typedream — Everything you need to create and sell online - websites, link in bios, forms, blogs, and payments - in one simple creators tool.
• Young Platform — Il crypto exchange italiano dove puoi acquistare e vendere Bitcoin e le migliori altcoin del mercato. Accumula criptovalute e costruisci il tuo futuro finanziario giorno dopo giorno.

Portfolio highlights

• Insempra — Origin.Bio creates synthetic microorganisms that can make many of the same ingredients as traditional chemical industrialization processes today, but with significantly fewer energy requirements and waste produced while eradicating the need for petrochemicals.The company drives the convergence of engineering with biology, using DNA as theprogramming language. Rather than editing genetic material only in or out of DNA, engineers can hack entirely new organisms that have never existed — all powered by computing, automation, and artificial intelligence (AI)/machine-learning while leveraging millions of years of evolution. Operating at an atomic level, the company farms organisms with microscopic precision and integrates them into existing original equipment manufacturer (OEM) manufacturing processes. This asset-light approach enables Origin.Bio to generate sustainable materials at speed in a cost-effective way, without compromising on performance.
• Biomicrogels Group — Biomicrogels Group is the developer and patent holder for biomicrogels - a unique substance produced from agricultural waste such as sugar beet, apple, sunflower pomace - capable of addressing the global environmental and climate change problems.The company's biomicrogel-based solutions add value in produced water treatment, cutting fluidseparation, vegetable oil extraction, cleaning of oil spills at sea and on land.We also manufacture a range of environmentally friendly household cleaning products under own brand, WONDERLAB.
• Legendairy Foods — We're Formo, the future of dairy. Using precision fermentation, we create animal-free cheeses that are delicious and, like, the real deal.

Portfolio highlights

• Altruistiq — Altruistiq is a decision-making environment for business sustainability teams.

Portfolio highlights

• Cargofy — Cargofy it's a mobile assistant, kind of a "Siri" but for truck drivers. We help truckers access to high paying loads through our app, and receive discounts on fuel, maintenance, and truck parts.
• MONET — Embedded finance for agencies and B2B platforms. Frictionless access to white-labelling B2B credit, global payments and new revenue streams. Offer white-label invoice finance to your network, driving growth for you and your suppliers.
• Connect4 — The client-centric platform for you and your team. Consistently deliver outstanding client meetings. Every single time.

Portfolio highlights

• Koos — KOOS is a simple legal and technological solution for motivating and rewarding your community. Boost your growth by sharing success.
• Patch — Patch is your new neighbourhood space for work, community, and events.
• Flow Engineering — Requirements management, made collaborative

Portfolio highlights

• Isometric — Isometric is a carbon removal registry and science platform
• TreesPlease Games — TreesPlease Games develops various computer and online games. The company is headquartered in London.
• Scriptic — Scriptic, interactive story games on mobile.

Portfolio highlights

• Voltaage — Take your fleet operations to the next level. Our comprehensive fleet management solution is perfect for sustainable fleets of all sizes. Discover now!
• Urban SDK — Urban SDK provides a enterprise GIS data and visualization studio for mapping, analytics, and more. Inspired by smarter communities and connected vehicles our analytics software helps you make better urban decisions.
• PowerMarket — A platform for turn-key solar life cycle management.

Portfolio highlights

• Jua — A new paradigm in weather forecasting. AI learning physics. Delivering accuracy beyond expectation. Covering use cases beyond belief. Accessible to everyone, wherever in the world they are. The world's first end to end deep learning model for weather forecasting, delivered on an intuitive platform for anyone to customise it. Startups,governments and large companies alike can now develop global, high frequency and high accuracy weather models within days.
• Altruistiq — Altruistiq is a decision-making environment for business sustainability teams.
• RosieReality — Rosie is an educational app for iPhone and iPad. The app is perfect for curious kids of ages 9 and up. Kids program Rosie the Robot using magical 3D shapes to explore AR puzzles.

Portfolio highlights

• Bippit — Bippit is a financial support system for employees, which provides them with a 1-1 financial coach, powerful tools, and practical resources.Research has shown that 3/4 staff members have financial concerns that directly affect them at work, but only 1/10 have been able to speak to an expert about them. This has a huge impact onbusinesses, as 15% of payroll cost can be lost from reduced productivity, presenteeism, and an increase in staff turnover, due to the financial worries of their workforce.Bippit makes professional financial support completely free for employees, whenever and wherever they need it, and is backed by early stage investors in Monzo, Freetrade, and Calm.
• Wally Health — Unlimited dental cleanings and whitening for $199/year
• Growth Kitchen — Growth Kitchen offers the best locations, satellite kitchens, and digital tools for restaurants that want to scale their delivery network.

Portfolio highlights

• Lukango — Lukango takes care of your insurance so you can focus on growing your business, knowing your dream is protected in the right way.
• Nuon AI — AI powered Insurance Product Lifecycle. Optimise pricing, manage risks, improve renewals with Nuon AI Software.
• Electric Car Scheme — Salary sacrifice lets employees pay for an electric car from their gross salary before tax. It's basically the Cycle to Work scheme but for electric cars.

Portfolio highlights

• Taleemabad — Taleemabad - A home of adaptive learning for teachers, students, parents and school owners. Creative teaching methods with innovative technology.
• Silkhaus — A seamless, sophisticated experience you can rely on. Choose from the wide variety of furnished Boutique Flats and apartments for short and long-term stays from Silkhaus.
• Altruistiq — Altruistiq is a decision-making environment for business sustainability teams.

Portfolio highlights

• ARROE — ARROE software extends the lifespan of battery powered electronics, to reduce carbon emissions and e-waste
• MindLabs — Live sleep and meditation classes for your mind. Led by experts. Backed by neuroscience. Now available to download on the App Store.
• Fanbase — Fan engagement software built for the business of sport. Launch digital ticketing, memberships, hospitality packages in a matter of hours.

Portfolio highlights

• Nova Pangaea Technologies (NPT) — NPT is a cleantech company that has developed a revolutionary process technology called REFNOVA. REFNOVA allows customers to converts non-food plant residues into sustainable products such as biochar, activated carbon, biofuel, biopolymers and biochemicals. Our products help customers replace fossil based products and enable decarbonisation.

Portfolio highlights

• Talyn Air — Inspired by two-stage rockets, our innovative eVTOL uses two flight vehicles to transform flight. Fixed-wing performance with VTOL capabilities.
• BillionToOne — We are a team at the forefront of disease detection focused on moving Prenatal Screening and Liquid Biopsy forward.
• CaSRevolution — A novel disease-modifying approach against neurodegeneration

Portfolio highlights

• Konfir — employment Home page Instantly access employment or income records for any UK-based worker, with their consent
• FUEL — Where everlasting fanbases are built
• Sidekick — Expertly-managed portfolios for the modern investor

Portfolio highlights

• Oxwash — Powered by Vanish, Oxwash provides on-demand laundry and eco-friendly dry cleaning services, creating a simple and sustainable laundry service for all.

Portfolio highlights

• Isometric — Isometric is a carbon removal registry and science platform
• Linear — Linear allows the user to manage software development and track bugs. Built for speed and efficiency.The founders started Linear from their own frustrations building software projects in successful high-growth companies like Airbnb, Coinbase and Uber. The founders wanted to create the tools that focus us and its team in making progress, not getin the way. Tools that are fast and efficient. Speed and performance were the main things Linear focuses on early on and keep focusing on that.
• Getpaid — Payments infrastructure for B2B marketplaces, wholesalers and SaaS platforms. B2B checkout to process all B2B transactions online & offline | payout instantly | automate complex money flows, end-to-end reconciliation.

Portfolio highlights

• Claimer — Claimer is a self-service application that gets credit claims done easily of money spent on research and development. Its platform empowers company owners and advisors to prepare their claims, without any specialist knowledge, no matter how big or small the claim. It also prepares and submits the amended tax return for free.Claimer was founded in2019 by Adam McCann and is headquartered in Croydon, United Kingdom.
• The Garden — The Garden is an online media company.
• Condense — Live-streamed volumetric video into game engines

Portfolio highlights

• Isometric — Isometric is a carbon removal registry and science platform
• Neoplants — The first generation of bioengineered to fight air pollution. We call them neoplants.
• Lilium — Lilium is developing sustainable, high-speed air mobility through its electric vertical take-off and landing aircraft, vertiports and digital service.

Portfolio highlights

• Zumo — Digital assets platform engineered with a focus on compliance and sustainability. Get in touch to learn more.
• Be Nosy — Nosy is wearable tech with data play that helps you breathe purified air anywhere at any time. Our state of the art patented technology developed by former Dyson engineers is more effective at protecting you from pollution, viruses and allergens than any other solution in the market. While our particles and breathing sensor technology will help youknow exactly what is going into your body.
• Togather — Create your event on Togather, the UK's most trusted events booking platform, choose from our roster of over 1,500 of the best and most passionate creators...

Portfolio highlights

• Altruistiq — Altruistiq is a decision-making environment for business sustainability teams.