Top 25 Clean Energy Angel Investors in United Kingdom (June 2026)

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

• 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

• Hydrologiq — Built for fuel providers and asset owners to manage their entire fleet. Makes using hydrogen, battery, or other technologies easy, afforable and scalable. Remote monitoring, delivery planning, and system-wide optimisation in one single platform.

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

• 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

• 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

• 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

• 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

• 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

• Factored — Factored empowers landlords to access capital, allowing them to effectively meet capital needs, significantly enhance tenant living standards and drastically reduce carbon emissions from their rental properties.

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

• Bippit — Financial concerns are the No. 1 cause of stress at work. Bippit delivers expert guidance, planning tools, and support to every employee at every stage.
• 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

• 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

• 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

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

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

• 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

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

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

• 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

• 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

• Sterecycle — Pahami Sebelum Bermain Agar Tidak Melakukan Kesalahan

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.
• 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.