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Top 25 Renewable Energy Angel Investors in United Kingdom in April 2025

Last updated: Apr 2025 A list of 25 angel investors that invest in Renewable energy startups based in United kingdom. We rank investors based on the number of investments they made in Renewable energy companies from United kingdom. We update this investor list every month.

Top 25 Renewable Energy Angel Investors in United Kingdom in April 2025

Investor	Renewable Energy United Kingdom investments
Naruhisa Nakagawa	2
Simon Dunn	1
Somayeh Taheri	1
Andrew MacKay	1
Ian Hogarth	1
Rahul Munjal	1
Yishan Wong	1
Mo Hajhashem	1
Nikhil Shah	1
Taavet Hinrikus	1
Stanley Fink	1
David Murray-Hundley	1
Stuart Gardner	1
Kerry Ritz	1
Marc Benioff	1
James Hall-Smith	1
David Pitt-Watson	1
Chris Heminway	1
Paul Massara	1
Harry Seekings	1
Chris Adelsbach	1
Professor Lee Empringham	1
Neil Norman	1
Martin Schrimpff	1
Philip Walsh	1

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Investor list

Naruhisa Nakagawa is a Founder & Chief Investment Officer at Caygan Capital.

Investment focus

Manufacturing, Beauty, Environmental Consulting
Seed, Series A
Japan, United States, United Kingdom

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.

Simon Dunn

Investment focus

Sustainability, Renewable Energy, Environmental Engineering
Pre-Seed
United Kingdom

Portfolio highlights

Circular Refining and Products Company — Technology for a net zero world

Somayeh Taheri is a CEO and Co-Founder at UrbanChain.

Investment focus

Energy, GreenTech, Blockchain
Pre-Seed
United Kingdom

Portfolio highlights

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

Andrew MacKay is a angel investor.

Investment focus

Manufacturing, Semiconductor, Renewable Energy
Seed
United Kingdom

Portfolio highlights

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

Ian got a master's in machine learning at Cambridge and loves dystopian robot takeover narratives. Seven years ago, Ian realized being a choirboy came with no street cred, so he started DJing hip-hop, funk, drum & bass, and grime. Ian quit his job at Bain & Company, Singapore to start Songkick.

Investment focus

Software, E-Commerce, Internet
Seed, Pre-Seed, Series A
United Kingdom, United States, Germany

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 — One home for your digital world. Your second brain. A file explorer and workspace for the internet age. All your drives, clouds, notes, screenshots, links, and files in one calm, minimal app. No organizing required. Never forget anything again.

Rahul Munjal - Chairman & Managing Director @ Hero Future Energies

Investment focus

FinTech, InsurTech, Renewable Energy
Seed
United Kingdom

Portfolio highlights

Renew Risk — Renew Risk is a software development firm that offers B2B SaaS solutions based on deep science for optimizing the financial lifetime of major renewable energy assets.

Yishan Wong - Co-founder and Director @ Sunfire offices

Investment focus

E-Commerce, Software, News
Seed, Series B, Convertible Note
United States, United Kingdom

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)

Dr. Mo H. is a Chief Commercial Officer (CCO) at UrbanChain.

Investment focus

Energy, GreenTech, Blockchain
Pre-Seed
United Kingdom

Portfolio highlights

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

I am a creative, tech and social impact entrepreneur.I am Cofounder of Mixcloud -- the global community for audio culture -- where I worked with an amazing team of people to grow the company from a couple of guys in a warehouse in NW London to the world's biggest community of DJs and music curators, reaching 20 million people a month.It's been an exciting ride and I've learned a lot about building teams, products, communities/users, partnerships and business models. We continue to remain focused on building the world's leading sustainable and fair ecosystem for audio creators.I am now a board advisor to Mixcloud and an angel investor/advisor in a number of tech and consumer businesses. I am also advising and supporting charities and social impact projects, including being a trustee for the brilliant dance charity East London Dance, and an advisor to the great empowerment and anti racism organisation You Make It. I also enjoy DJing and I run an electronic music record label/clubnight MakeMusic.

Investment focus

Art, Music, Coworking
Seed, Pre-Seed, Series A
United Kingdom

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.

Taavet Hinrikus is co-founder and CEO of TransferWise. Prior to starting TransferWise, Taavet was Skype’s director of strategy until 2008, starting as its first-ever employee. One of the World Economic Forum's Tech Pioneers, Taavet is an adviser to Prime Minister of Estonia on the digital agenda. He’s also a mentor and angel investor; hisinvestments include Tweetdeck, Mendeley, OMGPOP, Property Partner, Sunrise, Improbable and Mapillary.

Investment focus

FinTech, Software, Financial Services
Seed, Series A, Series B
United Kingdom, United States, Estonia

Portfolio highlights

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.
Open Cosmos — Open Cosmos design, build and operate space missions, providing straightforward access to high quality satellite data and insights on a global scale.
Unearthly Materials — Unearthly Materials is a transformative materials company focused on delivering practical room-temperature superconductors and powering the century of superconductivity.

Lord Stanley Fink is a non-executive director and investor in British Pearl. He is a senior, well-known and accomplished financial services professional, with a long and diverse track record in, among others, the managed futures, brokerage and hedge fund industries.He was born in 1957 and educated at Manchester Grammar School and Trinity Hall,Cambridge graduating with a degree in Law. He then qualified as a Chartered Accountant in 1982 and worked at Mars and Citibank NA before joining Man Group plc in 1987, stepping down as Deputy Chairman of the Group in July 2008 after an illustrious career spanning 21 years including a successful period as Group CEO.Currently he is Chairman of ISAM Europe LLP, a hedge fund with offices in London, Florida and Cayman. He also is a non-executive director of Marex Spectron and Chairman of Zenith Hygiene Group plc.Lord Fink is a committed philanthropist whose focus is health, education and the environment. His roles include being a Trustee of ARK (Absolute Return for Kids), a Trustee of the Mayor’s Fund for London and Co-Chairman of the Board of Governors of the Oxford Centre for Hebrew and Jewish Studies. He was Chairman of the highly successful campaign by the Evelina London Hospital's Appeal to raise £10 million to assist in equipping the new hospital in 2005. He is also Chair Emeritus of the Board of Governors of Burlington Danes Academy which he sponsored through ARK. He was raised to the Peerage in 2011.

Investment focus

Financial Services, Information Technology, FinTech
Seed, Angel, Series A
United Kingdom

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/

David Murray-Hundley is the CEO and Co-Founder of Pario Ventures. He attended Harvard Business School.

Investment focus

FinTech, Automotive, Financial Services
Equity Crowdfunding, Seed, Series A
United Kingdom, United States, Estonia

Portfolio highlights

Yayzy — Your free carbon footprint calculator. Learn about your impact. Fund the best climate solutions. Plant trees. Fight climate change.
LANDBAY — Your dedicated Landbay intermediary page for specialist buy-to-let mortgages. Partner with a lender who gives you direct decisions with a flexible approach and a full online application process.
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.

Stuart Gardner

Investment focus

Funding Platform, Financial Services, Customer Service
Pre-Seed, Seed, Angel
United Kingdom, United States, Isle of Man

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.

Kerry Ritz works with early-stage business in the following areas: CEO support (everything to do with running the business); international growth and expansion; market or investor positioning; setting up and running a Board; building a team, interactions with investors (pre and post fundraising); sales, business development and marketing. Mostrecently he was Entrepreneur-in-Residence at the ABN-AMRO/Techstars Future of Finance Programme in Amsterdam. He is an international advisor to SeedStars and is a mentor with Techstars, MassChallenge, and WAYRA. He is also on the investment committee as an Expert Judge on the EU EIC Accelerator which provides grant and equity to deep-tech, high growth SME’s. Previously, he was an evaluator with EIT-Health for both Innovation and Accelerator and was a member of the Investment Committee for the COVID-19 emergency grant programme in 2020; judge at EIT-Mobility; advisor and evaluator to the Director General, Research & Innovation Foundation, Government of Cyprus; evaluator at Africa for Heroes; and judge at MassChallenge in Switzerland and Israel.He currently sits on several Boards as an independent Director and is an advisor to several early-stage and high growth companies. He is also an active angel investor with investments in the UK, EU, and US. Kerry has a broad range of international experience with both start-ups and corporates. He was Managing Director of MassChallenge UK. Prior to that, he was Chief Marketing Officer of FTSE 250 Euromoney Institutional Investor plc, where he was responsible for marketing, sales, customer service, fulfilment, marketing technology, product management, and customer insight including their migration to a digital business. He has also been CEO of Palringo and VP Business Development for EVRYTHNG, both innovative early-stage VC-backed start-ups. Kerry has a track record of bringing innovative and disruptive businesses to market: he was the President of Vonage UK and was one of the Founding Directors and one of the first 20 employees of “3”, the first 3g mobile operator in Europe. Although Kerry is originally Canadian, he has been in Europe for more than 30 years and has lived in the UK, France, the Netherlands, and Switzerland.

Investment focus

Artificial Intelligence, B2B, Energy
Seed, Pre-Seed, Series A
United Kingdom, United States

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.

Marc Benioff is Chair and Chief Executive Officer of Salesforce. Marc Benioff attended the University of Southern California.

Investment focus

Software, Health Care, Information Technology
Series A, Seed, Series B
United States, United Kingdom, Canada

Portfolio highlights

Fyxer — Technology focused Virtual assistance service
Norm AI — Norm Ai provides solutions for sludge problem by enabling compliance teams to delegate tasks to Regulatory AI via high-level instructions, while at the same time validating the resulting work product.
SandboxAQ — SandboxAQ is an enterprise SaaS company combining AI + Quantum tech to solve hard problems impacting society.

James Hall-Smith experienced infrastructure investor with a focus on the energy transition.

Investment focus

Energy, Renewable Energy, Internet of Things
Seed
United Kingdom

Portfolio highlights

CEPRO — CEPRO was founded on the simple idea of connecting suitable renewable energy sites with investors looking to put their money to work. Designers now finance, build, and operate community-owned smart grids that include solar panels, heat pumps, battery storage, and demand response systems for both new construction and retrofit scenarios.

David Pitt-Watson - Visiting Fellow @ Cambridge Judge Business School

Investment focus

CleanTech, GreenTech, Biotechnology
Seed
United Kingdom

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.

Chris Heminway is the Chairman Of The Board at Time To ACT Limited

Investment focus

Energy, Renewable Energy, Innovation Management
Seed
United Kingdom

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

Paul has extensive experience in the energy and service sectors in Europe and North America. Having stepped down as CEO of Electron he is now an Advisor to the Board, as well as being an Adviser to Habitat Energy, a member of the Committee on Fuel Poverty advising the UK Secretary of State for Energy, and Chair of Medicinema, a charity that buildscinemas in hospitals.He has served on the Executive Committee of two of the largest utilities in Europe, Centrica Plc and RWE/INNOGY. From 2006 to 2009, he was President and Founding Partner of Genesis Capital Corporation, a Canadian private equity company investing funds in small and medium-sized industrial businesses. From 1997 to 2005, Paul held a variety of positions with increasing responsibility with Centrica plc, Direct Energy North America, in Toronto. His tenure there culminated in his role as President of Canadian Operations and serving as a Member of the North American Board and the North America Executive Committee. His leadership enhanced the Company’s growth from $700,000MM to $2.7Bn, and from 600 to 3,000 employees.

Investment focus

Machine Learning, Software, Artificial Intelligence
Seed
United Kingdom

Portfolio highlights

Robin AI — Robin AI is a legal tech company based in London, made up of engineers, lawyers, scientists and operations specialists.
iSIZE Technologies — Artificial intelligence is poised to disrupt content delivery. An open question is how to make AI work in conjunction with existing (and upcoming) video coding and transport standards. iSIZE is the first company to deliver deep neural networks for data-driven video preprocessing in order to provide significant bitrate savings over any standardencoder, or significant quality improvement at the same bitrate. In recent commercial trials, we have already showcased over 50% reduction in bitrate (or commensurate gains in visual quality) against advanced implementations of all video coding standards, without any change on the consumer side. However, this is only the beginning: as deep learning capabilities begin to penetrate consumer devices, iSIZE’s AI ecosystem is poised to improve further over time due its data-driven learning. This will also allow for other advanced AI services like automated tagging and recognition to run seamlessly in conjunction with live content delivery.
Breathe Battery Technologies — Breathe Battery Technologies is a research-led technology company developing advanced battery management algorithms

Harry Seekings is a Senior Executive in infrastructure investment management.

Investment focus

Energy, Renewable Energy, Internet of Things
Seed
United Kingdom

Portfolio highlights

CEPRO — CEPRO was founded on the simple idea of connecting suitable renewable energy sites with investors looking to put their money to work. Designers now finance, build, and operate community-owned smart grids that include solar panels, heat pumps, battery storage, and demand response systems for both new construction and retrofit scenarios.

Chris Adelsbach - Founding Partner @ Outrun Ventures

Investment focus

FinTech, Financial Services, Software
Seed, Pre-Seed, Series A
United Kingdom, United States, Ireland

Portfolio highlights

Alfa AI — Alfa AI is a recruitment technology company specializing in AI-driven hiring solutions.
WealthOS — WealthOS is an cloud-native, enterprise, core wealth management platform. Launch and run superior digital wealth management value propositions faster and cheaper.
Camion — Empowering real estate to lead the energy transition with data and insights.

Professor Lee is the Professor of Power Conversion Technologies, at the Faculty of Engineering. Lee Empringham is an investor at The Thinking Pod Innovations.

Investment focus

Industrial, Electronics, Renewable Energy
Angel
United Kingdom

Portfolio highlights

The Thinking Pod Innovations — The Thinking Pod Innovations specializes in electronics for industrial automation, automotive energy, and aerospace sectors.

Neil Norman is the Founder and Chief Executive Officer at MSite. He is a former Management Consultant at Accenture. He attended Sheffield Hallam University

Investment focus

Solar, Renewable Energy, Energy Efficiency
Seed
United Kingdom

Portfolio highlights

Heatio — Heatio provides affordable renewable energy to homeowners.

Martin currently works as the co-founder and CEO of Kocomo. He used to worked for PayU as founder and head of global sales.

Investment focus

FinTech, Financial Services, SaaS
Seed, Angel, Funding Round
Colombia, Mexico, Brazil

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.