Top 40 Renewable Energy Angel Investors in United Kingdom (July 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.
• RootWave — RootWave is an electronics company that develops tools that kill weeds it enables farmers to control weeds on their farm. Its technology is an alternative substitute for herbicides and other weed control chemicals. The company was founded in 2012 and headquartered in Warwickshire, United Kingdom.
• CoCooking — CoCooking uses food and cooking to create ample opportunity for dialogue and thought, fostering creativity, diversity, and well-being of individuals and communities.

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

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

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• 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.
• SendCutSend — SendCutSend is an online custom manufacturing service specializing in rapid, high-precision sheet metal fabrication and CNC machining. Customers simply upload their digital design files to get professional-grade parts manufactured and shipped to their door, with turnaround times as fast as 24 hours.

Portfolio highlights

• Dognosis — Dognosis is a deeptech startup based in Bangalore building olfaction AI to unlock disease screening at scale. We work with wearable brain-computer interfaces (BCIs), sensor fusion, machine learning, and highly trained biomedical detection dogs to understand scent in unprecedented ways. We are currently focused on developing a breath-basedpan-cancer screening test that will be ultra-affordable, low-friction, and extremely cost-effective. Dognosis is lead by Akash Kulgod, a UC Berkeley trained cognitive scientist and Itamar Bitan, a former IDF K9 professional, and currently consists of 16 full-time employees in engineering, computational neuroscience, and clinical operations.
• Fundably — Fundably - Get The Right UK Business Loan | Access £1k-£2m
• 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

• Feather — Feather gives you insurance advice for expats in Germany. Our digital insurance agent will help you get the right insurance policies for your need.
• Habito — We're the Treating Customers Fairly Champion of 2023 as voted for in the British Bank Awards. We're here to make mortgages easier - no paperwork, no stress and no fees.
• Entrepreneurs First — We turn exceptional individuals into funded founders. We back you first, then give you a bridge to Silicon Valley.

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

• 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.
• 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

• Nova Pangaea Technologies — 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

• Heatio — Heatio provides affordable renewable energy to homeowners.

Portfolio highlights

• Swayable — Swayable is the industry gold standard for creative pre-testing. Run RCT experiments on real audiences and prove ad impact in as little as 24 hours. Trusted by DoorDash, Meta, Amazon, and 100+ global brands.
• Detect — Working on developing rapid molecular tests for point of need care
• Fuse Energy — Tesseract offers commission-free energy; 10x cheaper; 10x better, and 100 percent renewable energy.

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

• 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

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

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

• Ryder — 60s Setup, Secure Signing, EAL6+ Secure Element, TapSafe Recovery, IP68 Rating, Encrypted NFC.
• VeryAI — VeryAI develops a privacy-preserving identity verification platform using palm-scan biometrics on the Solana blockchain.
• worm.wtf — worm.wtf is the prediction marketplace for the Solana ecosystem.

Portfolio highlights

• Fuse Energy — Fuse Energy is building the future of energy with cheaper tariffs, better service, and greener goals. Switch to Fuse Energy today
• Sportradar — Sportradar is a global provider of sports betting and sports entertainment products and services. The company is well-positioned at the intersection of the sports, media and betting industries, providing sports federations, news media, consumer platforms and sports betting operators with a range of solutions to help grow their business.Sportradarcommitment to excellent service, quality and reliability that makes us the trusted partner of more than 1,600 customers in over 120 countries and official partner of the NBA, NHL, MLB, NASCAR and FIFA. Sportradar cover more than 750,000 events annually across 83 sports. With deep industry relationships, Sportradar is not just redefining the sports fan experience; it also safeguards the sports themselves through its Integrity Services division and advocacy for an integrity-driven environment for all involved.
• Fuse Energy — Tesseract offers commission-free energy; 10x cheaper; 10x better, and 100 percent renewable energy.

Portfolio highlights

• Habito — We're the Treating Customers Fairly Champion of 2023 as voted for in the British Bank Awards. We're here to make mortgages easier - no paperwork, no stress and no fees.
• Tern Group — Tern Group is an AI Platform to hire and relocate top healthcare talents globally, faster and cheaper. TERN is a full-stack solution to source and relocate top-tier medical and engineering talent from India, North Africa, South Africa, and Central Asia and the approach ensures a seamless, ethical, and transparent migration process, drasticallycutting complexity and shaving costs for healthcare systems.
• Red Bull KTM Tech3 — Red Bull KTM Tech3 is a motorcycle racing team that competes in the MotoGP and Moto3 World Championships. The team fields riders on KTM machinery across the premier and lightweight Grand Prix classes. It participates in the full world championship calendar, racing at circuits such as Sachsenring, Assen, Silverstone, MotorLand Aragón, Misano, andothers. Red Bull KTM Tech3 manages rider development, technical preparation, and race operations for each Grand Prix round.

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.
• SendCutSend — SendCutSend is an online custom manufacturing service specializing in rapid, high-precision sheet metal fabrication and CNC machining. Customers simply upload their digital design files to get professional-grade parts manufactured and shipped to their door, with turnaround times as fast as 24 hours.

Portfolio highlights

• TerraSpark — TerraSpark Energy specializing in software solutions for renewable energy asset management. The product, TerraSpark Hub, provides comprehensive oversight of commercial and technical data for green energy assets like solar and wind projects.
• Recupere Metals — Recupere Metals focused on recycling copper scrap into high-quality electrical wires. It uses a patented mechanical process enhanced by AI to boost conductivity from impure scrap, bypassing energy-intensive smelting.
• A&B Smart Materials — The A&B Smart Materials Using innovative cooling technologies to boost photovoltaic efficiency.

Portfolio highlights

• Visium —
• Zaro — Zaro is a workspace platform that brings AI agents and apps together in one place to automate repetitive business tasks and accelerate important work. The company deploys AI agents that handle real tasks while connecting the apps teams already rely on, enabling operations to scale without scaling headcount. Everything runs on a simple credit-basedmodel where customers only pay for what they use, and users can start free. Zaro enables modern teams to automate busywork, automate the repetitive, and focus on work that moves the business forward. The platform turns AI from a buzzword into something teams use daily for running their business operations.
• Inherent — Inherent aims to establish the blueprint for AI-native science while investigating the boundaries of scientific inquiry.

Portfolio highlights

• Stackfix — Stackfix operates as a software comparison platform.
• Rivan Industries — Rivan Industries designs and builds modular, vertically integrated, synthetic fuel plants.
• Asymmetric Security — Asymmetric Security is an AI-native cybersecurity startup specializing in digital forensics and incident response. It combines elite forensic experts with proprietary AI to accelerate investigations, especially Business Email Compromise (BEC) attacks, at less than half the cost of competitors while shrinking timelines from days to hours.

Portfolio highlights

• Adam — Adam connects you with verified painters and decorators across whole Europe. Get an instant price estimate and book a painter for the next day already!
• BirdyChat — BirdyChat is a Developer of a work chat application intended for work professionals.
• ScamGuardian.AI — Providing Actionable Intelligence to Stop Scams

Portfolio highlights

• Prop Sustainable — Operating at the intersection of renewable energy, proptech, and real estate, Prop Sustainable supports institutional landlords, developers, and asset managers in procuring renewable energy solutions. Specifically, we provide expertise in the adoption of EV charging infrastructure and Solar PV installations. We maintain that renewable energy isfundamentally a business of real estate, given the asset always needs to exist on a building or a parcel of land. Viewing it through this lens enables us to overcome barriers and align bottom-line priorities with ESG goals.Leveraging proprietary data, GIS platforms, and advanced PropTech, we identify viable sites for renewable energy adoption. We then engage our extensive network of renewable energy suppliers across the UK to run a tendering process, ensuring our clients secure the most competitive rates for solutions that are both sustainable and commercially additive. Acting as a translation device between the renewable energy and real estate sectors, we simplify complex processes and align priorities. Our innovative business model makes our services entirely free for clients—a first of its kind in the industry.

Portfolio highlights

• Prop Sustainable — Operating at the intersection of renewable energy, proptech, and real estate, Prop Sustainable supports institutional landlords, developers, and asset managers in procuring renewable energy solutions. Specifically, we provide expertise in the adoption of EV charging infrastructure and Solar PV installations. We maintain that renewable energy isfundamentally a business of real estate, given the asset always needs to exist on a building or a parcel of land. Viewing it through this lens enables us to overcome barriers and align bottom-line priorities with ESG goals.Leveraging proprietary data, GIS platforms, and advanced PropTech, we identify viable sites for renewable energy adoption. We then engage our extensive network of renewable energy suppliers across the UK to run a tendering process, ensuring our clients secure the most competitive rates for solutions that are both sustainable and commercially additive. Acting as a translation device between the renewable energy and real estate sectors, we simplify complex processes and align priorities. Our innovative business model makes our services entirely free for clients—a first of its kind in the industry.

Portfolio highlights

• Bindwell — Bindwell is a Biotech company that uses AI to develops safer pesticides.
• Exla — Exla employs quantization techniques for AI models to reduce memory consumption while simultaneously improving inference speed.
• Revision Dojo — Thousands of practice questions, study notes, and flashcards, all in one place. Supercharged with Jojo AI.

Portfolio highlights

• Piclo — Piclo develop software to make our electricity grids smart, flexible and sustainable.
• SMPnet — Revolutionising power grid management with cutting-edge solutions. Join us to shape a sustainable and efficient energy landscape.
• Interpac — Interpac has developed a new packaging production system the corrugator which does not use steam in the manufacturing process. The Interpac system is a revolutionary process that enables on-demand production which significantly reduces packaging costs and emits 90% less greenhouse gases than conventional processes.

Portfolio highlights

• heata — heata supports people living in fuel poverty, It enables companies to significantly reduce their carbon footprint while saving families up to £450 per year on their energy bills. It is a ground-breaking green distributed compute network that uses computation waste heat to heat people's homes' water.
• Nokken —
• Katrick Technologies — We are a fast-growth IP-based Green Tech business. Our innovative technologies capture and convert energy from waste heat and wind through oscillations, providing profitable zero-carbon electricity and power-saving results.

Portfolio highlights

• Qutwo — Europe’s next-generation AI lab for a quantum world.
• Viktor —
• General Intuition — General Intuition is a frontier research lab focused on teaching machines to learn and adapt through play, aiming to build artificial intelligence that can perceive, anticipate, and improvise in real-world dynamics, with gaming as a central domain for testing and innovation.

Portfolio highlights

• The Qube — The Qube is a space, resource and network designed specifically for creatives by creatives – a home for inspired creators to prosper. Members share access to 30 purpose-built studios across music, podcast, video & photography. The Qube's 16,000 SQFT flagship West London site opened February 2020.
• Arro — Discover the shared daily operating system that helps you get more from life and work. Get to Day Zero together.
• Wax Poetics — Wax Poetics is a music journalism platform and former print magazine dedicated to in-depth reporting about historical and contemporary genres.

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

• 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.
• Project Etopia — Connecting energy, construction and intelligent technologies to revolutionise the built environment and shape a sustainable future.

Portfolio highlights

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

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

• 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

• Bourn — Bourn's technology is designed to automate cash flow management, offering SMEs fast access to capital.
• Alfa AI — Alfa AI is a recruitment technology company specializing in AI-driven hiring solutions.
• Emblematic — The first AI-driven Agentic Automation platform, designed to fully automate and enhance the accuracy of Finance Operations, including Bookkeeping, IFRS/GAAP Compliance, Reconciliations, and more.

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.