Top 30 Renewable Energy Angel Investors in United Kingdom in May 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

• 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

• 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

• 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.
• Monaco — Monaco functions as a unified system of record, building total addressable market data, running outbound campaigns, capturing interactions, and managing pipeline activity within a single environment. It includes account databases, intent and signal tracking, sequencing tools, pipeline management, and call recording to support demand generationthrough conversion. Monaco automates account discovery, enrichment, and scoring to keep target markets current. Its onboarding process establishes TAM, configures sequences, overlays signals, and imports existing pipeline data from day one.
• Flow Engineering — Requirements management, made collaborative

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

• 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

• 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

• mmi Analytics — Make better-informed brand communications decisions on a local, global and campaign level. Talk to us about how you can increase your beauty brand sales.
• 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.
• CharitableBookings.com — CharitableBookings.com is an online platform that gives back to charity on the users behalf for free, while users earn deals on hotels and travel, and gain access to lifestyle privileges. Based in London, UK, but offering global travel, hospitality and lifestyle deals to its users. So far the startup has raised investment of over £5m, with keyinvestors including Lord Stanley Fink, former CEO of Man Group plc. https://charitablebookings.com/

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

• 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

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

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

• Bourn — Bourn's technology is designed to automate cash flow management, offering SMEs fast access to capital.
• Capsa AI — Providing next-generation investors with a competitive edge.
• Embed — The regulated Payments Platform unifying crypto and fiat rails. Fung has launched early beta. Sign up to secure your spot.

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

• Whalar — Whalar is on a mission to Liberate the Creative Voice and make advertising more inclusive, diverse and effective.
• Parallel Bio — Using the immune system to cure disease. Parallel Bio uses a human immune system in a dish and AI to discover drugs more likely to work in patients.
• Jeeva AI — Jeeva AI provides a sales automation platform that delivers products and services centered on agentic-AI workflows for prospecting and engagement. The platform offers automated lead discovery that identifies decision-makers across numerous data sources and enriches records with missing contact and firmographic details. It includes tools forgenerating personalized outreach through email and LinkedIn, enabling consistent communication based on role, industry, and observed behavior. Jeeva AI also supplies inbox and calendar management services that draft replies, prepare meeting briefs, schedule calls, and record notes to reduce manual administrative tasks. These combined capabilities create a unified environment that supports sales teams and individual sellers throughout the prospecting and engagement cycle.

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

• 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.
• Unitary — We detect harmful content with context-aware AI to keep brands and platforms safe online.
• Fabric — Fabric is an AI-powered workspace and file manager for people and groups.Fabric is a self-organizing multiplayer workspace.

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

• 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

• 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

• Sterecycle — Pahami Sebelum Bermain Agar Tidak Melakukan Kesalahan