Top 30 Renewable Energy Angel Investors in United Kingdom (June 2026)

Portfolio highlights

• Zeigo — Zeigo by Schneider Electric provides sustainability software for efficient carbon reduction and supply chain decarbonization, aiming for a carbon-free future.
• Ecolectro — Ecolectro is solving the biggest challenges in making Green Hydrogen. Our alkaline ion-exchange membranes and polymers make clean fuel and decarbonize industry.
• Sniffer Robotics — Comprehensive methane emissions detection and quantification, advanced imagery and analytics; Sniffer Robotics provides advanced solutions that benefit the environment.

Portfolio highlights

• Centivax — Centivax is a healthcare-based agency that provides biotechnology, pharmaceutical, medical device manufacturing, and therapeutic services.
• The Interaction Company of California — The proactive AI assistant in your iMessage, WhatsApp, and more. Texts like a human, really knows you, and integrates with your life in dozens of ways.
• Entrepreneurs First — We turn exceptional individuals into funded founders. We back you first, then give you a bridge to Silicon Valley.

Portfolio highlights

• Robin — Robin AI is a legal tech company based in London, made up of engineers, lawyers, scientists and operations specialists.
• iSIZE Technologies — Sony Interactive Entertainment, the company behind PlayStation, is a global pioneer in video game entertainment.
• Breathe Battery Technologies — Breathe Battery Technologies is a research-led technology company developing advanced battery management algorithms

Portfolio highlights

• Field — Field is a renewable energy company aiming to accelerate the build-out of renewable infrastructure needed to reach net zero.
• SPOKE — Music and lyricism-led mindfulness, aimed at helping the world's most creative minds feel at ease.
• Virmati Energy — Virmati Energy is a Renewables & Environment Company.

Portfolio highlights

• Fundably — Fundably - Get The Right UK Business Loan | Access £1k-£2m
• 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.
• VIAN Therapeutics — VIAN Therapeutics is an early-stage biotechnology company focused on transforming retinal disease treatment. With a first-in-class, non-invasive eyedrop as its lead product, VIAN aims to replace invasive injections for conditions like age-related macular degeneration (AMD) and diabetic macular edema (DME). Backed by strong preclinical data andongoing clinical testing, VIAN is positioned to address significant unmet medical needs and disrupt the $15 billion retinal disease market.

Portfolio highlights

• UrbanChain — Consumers, prosumers, and generators are welcome to make their marketplace.

Portfolio highlights

• Kinema — A social cinema platform for filmmakers and community builders
• Detect — Working on developing rapid molecular tests for point of need care
• Linear Labs — The world has a bottomless appetite for electricity. In fact, 45% of the world's electricity passes through an electric motor. This is equivalent to 1 out of every 2 power plants solely dedicated to electric motors. And yet electric motor designs remain essentially unchanged in last 100 years. Linear Labs, an electric motor company, hascreated an entirely new family of electric motor systems designed for the next generation of electric vehicles, HVAC systems and robotics welcoming in a new era of smarter energy utilization. Our "smart"​ motors shape shift and morph the physical design in real time to adjust for changing conditions. The result is 2x improvements in torque, further range and significantly lowering power consumption.Linear Labs is a Texas based technology company.www.linearlabsinc.com

Portfolio highlights

• Mesg.ai — Mesg.ai automates your research and copywriting process, so your sales team can send personalised outreach emails in one click
• Concured AI — Increase content effectiveness and efficiency with Concured's AI Recommendation Engine. See More Here.
• SEaB Energy — SEaB Energy designs, develops and manufactures micro anaerobic digestion systems which create biogas, water and fertiliser. The patented units can be combined with Combined Heat & Power units, Biogas Fuel Cell or Biogas boiler to use the gas. The fertiliser is available in liquid or solid bagged format.The company is headquartered inLondon. SEaB Energy has developed and patented Muckbuster® and Flexibuster™ as compact easy to install turnkey Anaerobic Digestion (AD) systems in shipping containers. The systems are modular, easily configured and scalable to address food waste and other bio wastes directly at the sites of smaller waste producers who typically generate between 200 and 1000 tonnes of waste per year.Whether you are a farmer, a food processor, a retailer or you are in the catering and accommodation markets, Muckbuster® and Flexibuster™ can reduce your operational costs, enhance your sustainability and generate an attractive return on your investment.

Portfolio highlights

• CEPRO — We work hand-in-hand with developers, impact investors, home owners and occupiers to build clean, affordable community smart grids.

Portfolio highlights

• The Thinking Pod Innovations — TTPi Transforming electronics for sustainable transport and energy systems Delivering energy efficiency We partnered with ITT and the University of Nottingham to develop the technology at the heart of the intelligent motor, which adjusts its speed in response to changing workload, lowering energy usage and CO2 emissions. The first of its kind, the VIDAR motor

Portfolio highlights

• Circular Refining and Products Company — Circular Refining & Products Company is developing and deploying solutions to accelerate net zero target achievement. It employs fossil-fuel-free hydrogen production technologies and model systems to help public and private sector natural gas and diesel users meet decarbonization and net-zero targets sooner than previously anticipated.

Portfolio highlights

• Juro — Juro is an all-in-one contract automation platform that helps legal and business users to agree & manage contracts in one unified workspace.
• Meatable — Meatable is a food production company that produces real and guilt-free meat. With one cell, they are revolutionizing the meat industry's impact on climate change and animal welfare. At the same time they increase food security, without compromising the culinary experience of eating tasty, real meat. They aim to satisfy the world'sappetite for meat without harming people, animals, and the planet.It was founded in 2018 and is headquartered in Delft, South Holland, The Netherlands.
• Skeleton Technologies — Skeleton Technologies is the global leader in ultracapacitor & supercapacitor energy storage and helps companies in automotive, transportation, grid, and industry to save energy.

Portfolio highlights

• Bud — Bud uses Open Banking to help financial companies to access and make sense of messy financial data.
• farillio — They know first-hand how tough it can be to start out in business – and that keeping your business going strong doesn’t get easier. They understand how not knowing, or having access to what you want, gets in your way. They understand how that wastes your time, makes you unnecessarily anxious and costs you way too much money. They know law,business and technology inside out. Their team members have won awards for legal advice, excellence in technology, built online banks, apps and wearables. They’ve held relevant senior roles in leading, progressive household brands, and almost all of us have founded at least one business before. Their experience tells us there’s a better way to do business, and they knew the very best people to build their solution. So, they have joined together with a brilliant community of legal and business experts, each committed to making sure that you can run your business on your terms and in the Farillio way – simply, quickly, confidently and affordably.
• Blackbullion — Blackbullion is the all in one student money space where you can build your money management skills, gain financial confidence and apply for student funding.

Portfolio highlights

• Hgen — Hgen provides affordable green hydrogen for deep decarbonization.
• Heimdal — Thinking big, first, to build the worlds largest most scalable DAC facilities. We operate Bantam, America's largest DAC facility.
• Proper — Proper provides expert property management bookkeeping for property managers, asset managers, and anyone in the world of property. (213 kB)

Portfolio highlights

• yhangry — YHANGRY is a private chef platform where users can book a professional chef to come cook for them at home.
• Fuse Energy — Fuse Energy is building the future of energy with cheaper tariffs, better service, and greener goals. Switch to Fuse Energy today
• Fuse Energy — Tesseract offers commission-free energy; 10x cheaper; 10x better, and 100 percent renewable energy.

Portfolio highlights

• Hiyacar — Discover safe, quality peer-to-peer car rental. Rent a fully insured car from trusted neighbours or list your vehicle to make extra money. Sign up now!
• Riversimple — Riversimple is a new kind of business, designed from scratch to pursue our purpose: the systematic elimination of the environmental impact of personal transport. Our aim is mobility at zero cost to the planet. We’ve designed a radically new car (the Rasa) which emits nothing but a tiny amount of water and will do the equivalent of c250 mpg.Charging takes 3 minutes, and the range is 300 miles. We’re building a fundamentally new form of business system that aligns our interests with our customers’ and the environment’s. There’s no trade off between profit and purpose. We love what we’re doing and we hope you will too. We’re actively seeking commercial partners and employees. We’re always interested to hear from like-minded pioneering people and companies. We are excited to be coming to our first pilot market in the UK this year.
• Plum Fintech — Join over a million people who save and invest without needing to think about it.

Portfolio highlights

• Zinobe — Zinobe has operated in Colombia since 2012 and develops online financial products for the consumer and small business sectors. The company is focused on using technology to provide the highest level of customer experience and has developed a data centric credit model to help target underserved markets in Colombia. Zinobe is backed by firms such asQED Investors, a U.S. based venture capital firm specializing in disruptive financial services companies in the U.S., U.K. and Latin America. For more information, please visit www.zinobe.com, www.lineru.com.
• Atrato — Atrato is a leading buy now pay later company for omnichannel merchants in Mexico
• Grin Scooters — Grin Scooters is a software company that operates network of operational shared electric scooters. Currently, Grin only operates in Mexico City, Guadalajara, Monterrey, Sao Paulo and Bogota but it has plans to expand to other cities throughout Latin America.

Portfolio highlights

• Blloc — The ultimate smartphone experience. Boost your productivity. Focus on what matters.
• Cordless — Bridging the gap between voice and text
• Heygo — Explore places to visit within the UK and around the world on Rest Less. Get inspired and plan trips to holiday destinations with us.

Portfolio highlights

• GreenSpur Wind — Time To ACT plc supports the global transition to Net Zero through the development and commercialisation of world-beating clean technologies

Portfolio highlights

• Sterecycle — Pahami Sebelum Bermain Agar Tidak Melakukan Kesalahan

Portfolio highlights

• Renew Risk — Renew Risk offers science-driven risk analytics and products to secure renewable energy infrastructure and support the energy transition.

Portfolio highlights

• UrbanChain — Consumers, prosumers, and generators are welcome to make their marketplace.

Portfolio highlights

• SandboxAQ — SandboxAQ is an enterprise SaaS company combining AI + Quantum tech to solve hard problems impacting society.
• Panthalassa — Panthalassa is a technology company focused on developing renewable energy systems in the ocean, particularly to power computing and artificial intelligence infrastructure. The company works on harnessing wave energy to generate electricity at sea, which can then be used to run offshore data centers or converted into fuels that are transported backto land.
• Enclave — Enclave is a cybersecurity startup that builds an AI‑native code‑security agent for software development and DevSecOps teams. It analyzes entire codebases to triage scanner noise and surface only the vulnerabilities that truly matter, using cross‑file taint analysis and trust‑boundary mapping. The platform helps engineering teams ship code fasterwhile reducing the risk of exploitable security issues in production. Enclave primarily targets software companies and enterprises that prioritize secure, high‑velocity development.

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

• Parallel Carbon — Affordable direct air capture technology based on wind, sunshine, and abundant minerals. Carbon removal and reduction, in Parallel.

Portfolio highlights

• CEPRO — We work hand-in-hand with developers, impact investors, home owners and occupiers to build clean, affordable community smart grids.

Portfolio highlights

• The Thinking Pod Innovations — TTPi Transforming electronics for sustainable transport and energy systems Delivering energy efficiency We partnered with ITT and the University of Nottingham to develop the technology at the heart of the intelligent motor, which adjusts its speed in response to changing workload, lowering energy usage and CO2 emissions. The first of its kind, the VIDAR motor

Portfolio highlights

• Heatio — Heatio provides affordable renewable energy to homeowners.

Portfolio highlights

• Circular Refining and Products Company — Circular Refining & Products Company is developing and deploying solutions to accelerate net zero target achievement. It employs fossil-fuel-free hydrogen production technologies and model systems to help public and private sector natural gas and diesel users meet decarbonization and net-zero targets sooner than previously anticipated.

Portfolio highlights

• Capsa AI — Providing next-generation investors with a competitive edge.
• FinCrime Dynamics — Our mission is to help make the world’s financial system safer through rapid deployment of effective AI for financial crime analytics, enabled by enriched synthetic data that captures the dynamics of fraud and money laundering and loads them into tailor-made scenarios that explore diverse threats that financial organisations are exposed to.Thisgoal has taken us to the forefront of Synthetic Data and Fincrime Analytics, and we are proud to have in our team people that have helped shape the state-of-the-art of these fields.Keywords: Finacial services, AML, Synthetic Data, Fintech, Machine learning, Big data, Simulation, Fraud Analytics, Compliance
• Applied Computing — Applied Computing delivers industrial AI to the energy industry including oil and gas, refineries, and petrochemical plants, helping critical operations harness 100% of their data and optimise in real time for safer, faster, higher-performing decisions