Top 35 Clean Energy Angel Investors in United Kingdom (August 2026)

Portfolio highlights

• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.

Portfolio highlights

• Patch App — Patch App UK intends to digitally transform the window cleaning business.

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

• Crowdz — Make accounts receivables a thing of the past with a competitive invoice auction for selling your invoices with invoice financing
• Mesg.ai — Mesg.ai automates your research and copywriting process, so your sales team can send personalised outreach emails in one click
• 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

• Hydrologiq — Unified operational platform across battery, solar, hydrogen and clean fuels. Connect data, context, logistics and demand into one intelligence layer.

Portfolio highlights

• Everproof — Enabling organizations and individuals to monitor and verify qualifications, licenses and certifications through one online account.
• Gridcog — Gridcog provides holistic software to plan, track, and optimize your transition to a decentralized and decarbonized energy future.
• New Energy Transport — New Energy Transport is a trucking company that provides logistics and freight services.

Portfolio highlights

• Gridcog — Gridcog provides holistic software to plan, track, and optimize your transition to a decentralized and decarbonized energy future.

Portfolio highlights

• Patch App — Patch App UK intends to digitally transform the window cleaning business.

Portfolio highlights

• Patch App — Patch App UK intends to digitally transform the window cleaning business.

Portfolio highlights

• Hydrologiq — Unified operational platform across battery, solar, hydrogen and clean fuels. Connect data, context, logistics and demand into one intelligence layer.

Portfolio highlights

• Dognosis — unleashing canine superpowers to democratize early cancer detection
• 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

• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.

Portfolio highlights

• Arro — Discover the shared daily operating system that helps you get more from life and work. Get to Day Zero together.
• SPOKE — Music and lyricism-led mindfulness, aimed at helping the world's most creative minds feel at ease.
• Wax Poetics — Rare memorabilia. Timeless stories. Since 2001.

Portfolio highlights

• 5Mins — 5Mins is the new microlearning platform that helps your employees build in-demand skills fast with AI-powered personalisation and advanced gamification.
• Screenloop — Screenloop is the hiring intelligence platform that allows you to source candidates, analyse interviews, and automate the reference process.
• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.

Portfolio highlights

• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.

Portfolio highlights

• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.

Portfolio highlights

• Patch App — Patch App UK intends to digitally transform the window cleaning business.

Portfolio highlights

• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.

Portfolio highlights

• Sterecycle — GUCI77 menghadirkan link gacor main slot premium dengan permainan resmi, proses transaksi cepat, dan peluang menang lebih besar. Rasakan sensasi bermain yang bikin hari makin asyik setiap saat.

Portfolio highlights

• Factored — Landlord finance funded within 24 hours, based on your rental income. No legal fees, no valuation fees, and a dedicated account manager. 90% approval.

Portfolio highlights

• Kenshō Health — Pharmacy Mall is a trusted online drugstore designed to make high-quality medications accessible and affordable for everyone.
• Wally Health — Unlimited dental cleanings and whitening for $199/year
• Growth Kitchen — Growth Kitchen provides a network of delivery-optimized kitchens coupled with food delivery solutions and support.

Portfolio highlights

• 3E Group —
• Relectrify — Unlocking extra lifetime and performance of batteries via advanced battery management (BMS) technology.
• Gridcog — Gridcog provides holistic software to plan, track, and optimize your transition to a decentralized and decarbonized energy future.

Portfolio highlights

• Patch App — Patch App UK intends to digitally transform the window cleaning business.

Portfolio highlights

• Yolda — Logistic operations still largely run on paper. It is almost impossible to track the vast majority of loads, receive delivery documents or measure how successful the operation is. Yolda.com is changing this with a strategic operating model that combines advanced tech and data analytics, logistics infrastructure, and hands-on supply chain expertise.Yolda.com combines the quality of cargo transportation with the diversity of haulier and the integrated service model of 3PL companies and offers a high-quality logistics experience by focusing on its customers. Yolda.com’s marketplace solution encompasses many local forwarders and logistics companies, enabling SMEs and corporate enterprises to receive an instant quote for multiple shipment requests on a single platform. Companies can also track their shipments via Yolda.com's intelligent control panel and measure their logistics operations performance with detailed reporting services.
• Donut — Donut helps people discover new ways to build wealth, by providing the easiest and most trusted way to save & earn high yield with DeFi. Donut was founded in 2018 and is dual headquartered in Los Angeles and Berlin.
• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.

Portfolio highlights

• Priam Cyber AI — Measure and improve your security operations with Priam AI.We are combining decades of experience in incident response, data science and machine learning.
• Nuada — MOF Technologies take innovative organisations from ideation to commercialisation using our proven MOF development expertise & patented technology.
• VMind AI — VMind is a frontier technology company building artificial general intelligence (AGI).

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.
• Lassie — AI that runs the doctor's office.
• Lightyear — Lightyear is a simple and approachable way to invest your money globally without unnecessary barriers and fees.

Portfolio highlights

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

Portfolio highlights

• Tewke — Tewke is a London based company that was founded in 2020 developing technology to deliver energy savings through AI enabled home automation. Tewke's mission is to reduce energy consumption in homes whilst elevating everyone's living experience.Tewke's first product, Tap, is an intelligent light switch that can be installed into anyhome without rewiring. This acts as the backbone of Tewke's energy control and home automation platform, and has already won international awards, such as the Red Dot Design Award.
• Alpaca — Alpaca API allows developers and businesses to build apps, embed investing, and trade algorithms

Portfolio highlights

• Kroo — B-Social is a financial technology company that develops innovative services for a new generation of customers.It aims to make personal and social finances move at the speed of life. The fintech company builds an app that intuitively connects personal finances with their customers' social world, making it easy for them and their friends tobuy, track, and shares the experiences that bring them closer.Nazim Valimahomed and Tim Brown formed the company in 2016 in London, England.
• GuestReady — Premium Airbnb Management Service for your vacation rental. Maximise your revenues and become a Superhost with GuestReady's 5* property management service.
• Chip — Get the best savings rates brought to you and smash your savings goals automatically with Chip. Join over 400,000 savers today. We're building the best savings accounts in the world for you, with you.

Portfolio highlights

• Runna — Runna is your personalized running coach. With tailored training plans, world-class coaching and an in-app community to help you achieve your goals, whether you're training for a faster 5k or your first marathon. Download Runna today.
• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.

Portfolio highlights

• GetAlert — GetAlert IoT smart Analytics enables camera sensors with intelligence to understand the world as humans do. GetAlert products are based on 3D human biometric & Gait analysis proprietary technology using any 2D sensor.
• Lumo Bodytech — Feel Peak is an online resource aimed at helping you to feel at your peak - both physically and mentally. Browse our reviews and guides to reach your potential.
• Eksagon Group Ltd — At Eksagon, we provide travelling exhibitions that inspire learning in a dynamic, engaging and entertaining manner; for children and adults alike.

Portfolio highlights

• Patch App — Patch App UK intends to digitally transform the window cleaning business.

Portfolio highlights

• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.

Portfolio highlights

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

Portfolio highlights

• Charlie — Charlie is built by serial startup founders to solve their most pressing need – more time. Designed so that it’s easy to use and simple to manage, Charlie automates the administrative headaches of running a company so you can focus on building real value.
• Odin — Community and investment tools for people building the future.
• Clim8 Invest — Clim8 Invest develops an app for sustainable investing so people can make an impact on climate change with their savings. Clim8 is a simple way to invest in a sustainable portfolio of carefully selected companies already making a positive impact on climate change.Clim8's mission is to move billions of pounds of investments into clean energyand truly green, sustainable companies.