Top 45 Clean Energy Angel Investors in Europe (June 2026)

Portfolio highlights

• Asepha — Asepha is an AI clinical decision support (CDS) tool to help healthcare professionals make faster clinical decisions.
• ORA Technologies — E-Commerce, Super App
• THIRUMALS PAPER ARIZONA PVT. LTD. — TRADING PLATFORM OF PULP , PAPER & PACKAGING

Portfolio highlights

• Montamo — Montamo trains lateral entrants with standardized methods. We rely on both our on-site academy and our digital learning software.
• Graswald AI — Graswald engages in the creation of natural and digital 3D worlds for the entertainment industry.
• Trade Machines FI GmbH — TradeMachines understands how difficult it is to trust in used machinery. They work with trustful industrial auctioneers and renowned machinery traders to ensure you receive the best connection between the two. Industrial auctions are a popular possibility to find great bargains when it comes to used machinery. In these industrial auctionspotential buyers find used equipment of companies who became insolvent or who decided to get rid of a selection of their machines. But industrial auctions are not the only way how to find the right used machines for cheap prices. Machinery traders list their offers on TradeMachines as well. As a result of the extensive offer of used machines, it is much easier and less time consuming to the find right offer.

Portfolio highlights

• GovRadar — GovRadar accelerates and simplifies the procurement process for the public sector. Our procurement platform helps public authorities procure innovations efficiently - automated and in compliance with procurement law. The SaaS solution generates tender documents in a few clicks rather than months.
• Urban Ray — Urban Ray makes goods accessible anytime for everyone.
• Vaeridion — Vaeridion offers green air mobility technology and services which helps electric microliners to fly with the low energy consumption.

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

• 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

• 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

• trawa — The partner for renewable and affordable electricity for businesses. Get electricity directly from solar and windparks with corporate PPAs.
• Hygraph — A GraphQL-native headless CMS that marketers and developers love. Structure content, scale with AI, and launch faster across every channel.
• Detectify — Detectify's external attack surface management tool - assess, prioritize, remediate continuously growing external attack surfaces.

Portfolio highlights

• Glowee — Glowee is engaged in the development of biological light systems using the natural properties bioluminescent marine organisms. Requiring neither electricity nor installation infrastructure, these systems are built by encoding particular genes in symbiotic bacteria.
• WiSEED — Wiseed is a crowdfunding platform that enables its users to invest in SMEs and enterprises. The platform offers investments for startups, real-estate firms, social innovation and renewable energy projects, and agriculture firms. It was founded in 2008 by Nicolas Seres and Thomas Merquiol and is based in Toulouse.
• YMoney — YMoney helps African diaspora in taking care of their families living in Africa

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

• 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

• TopCheck — TopCheck.com.ng is a platform for comparing financial services like insurance, credit cards or loans. It was founded in January 2015 and is headquartered in Lagos.
• Wegatech — They plan renewable energy technology for you. As a standalone solution or in the system. For the professional installation, they work closely with selected craft companies. Thereby they bundle competencies in consulting, planning and execution.
• ePilot Mobility — ePilot Mobility bringt die erste Blockchain basierte E-Carsharing Flotte auf Deutschlands Straßen.Die Blockchain ermöglicht eine Teilhabe der Kunden an den Elektrofahrzeugen. Das Einsetzen dieser Technologie bedeutet, dass Nutzer:innen die E-Autoflotte gemeinsam dezentral besitzen können.Die MissionUm die Klimaziele zu erreichen, müssenanhand neuer Mobilitätskonzepte die CO2-Emissionen pro Person reduziert werden. E-Carsharing für Privatleute, Firmen, Städte und Kommunen durch ePilot Mobility ist ein Teil der Gesamtlösung.

Portfolio highlights

• finres — finres is a science-based firm that uses artificial intelligence, big data, and research to increase food system resilience in the face of climate change by making investment decision-making robust and quick, as well as providing a comprehensive algorithmic solution for recognizing and assessing climate risks in order to prioritize adaptationefforts.
• kolum.earth — EU companies importing cement, iron and steel, aluminium, fertilisers, electricity or hydrogen from non-EU countries can use the kolum.earth software solution to create their Carbon Boder Adjustment Mechanism (CBAM) reporting, measure carbon emissions attached to their imports, and communicate with their non-EU suppliers to become fully CBAM-compliant.
• forward earth — Next-Gen carbon management for a sustainable future. AI-driven, automated, compliant, fast, and secure. Be prepared for requirements of CSRD, SFRD, EU-Taxonomy, and kick-start your carbon reduction and abatement program. White-label options for partners.

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.

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

• 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

• Cycle — Cycle was founded with the mission of building innovative ultrafast laser technology for science and industry that excels through performance and reliability in application.A versatile team, backed with decades of expertise in laser technology and system integration, works closely together with applicants to plan and install solutions foractive environments. Cycle's team offers comprehensive consulting, service and support to realize the best match for your requirements.
• METALSALE — Metalsale builds a digital trading platform that allows non-ferrous metal scrap to be traded easily, lucratively and safely. They are a team with many years of experience in recycling and technology companies and know the problems that need to be solved.

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

• 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

• ZELF — Zelf is a neobank targeting Gen Z to bring financial services to where they live – in messengers. This is the lightest bank with the easiest onboarding process taking up to 60 sec to issue a card, receive and send money without leaving the messenger. We are uniquely offering AI-powered voice control over the most of financial operations, whichmakes us first voice-enabled banking for Gen Z who prefers voice interactions with their devices.
• Kaia Health — Kaia Health is a digital therapeutics company that creates evidence-based treatments for a range of disorders including back pain and COPD. Working with experts in various medical fields, the company uses machine learning to deliver individualized app interventions that aim to empower and motivate patients to take control and self-manage theircondition with digital alternatives from their home using devices they already own (i.e. smartphones and tablets).The company has enrolled more than 400,000 users to date in its digital therapy program. It was founded in 2016 and is headquartered in Brooklyn, New York.
• neoom — Humanity is finally saying goodbye to the energy generation from oil, gas, coal or nuclear fission, to renewable energy from wind, water, and sun. This energy transition is THE megatrend of our time! The challenges include the rapid increase in electric mobility and the increasing electricity demand for heating and cooling buildings. However, thegeneration of energy from renewable sources is characterized by certain volatility, i.e. fluctuations. We take on these challenges with our neoom battery storage and e-mobility charging solutions. With an innovative energy storage system, every private and commercial user can provide cheap, safe and above all clean energy on-site and react to the flexibility of the market. Our neoom hardware products are unique in design, functionality, and quality. Our intuitive, device-open software NTUITY represents the missing link in the field of energy management. Energy from renewable sources can be stored and used with maximum efficiency through our solutions. And best of all: we can deliver today! Take the first step into a sustainable life, visit our website, call us and now connect to neoom group.

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

• Sterecycle — Pahami Sebelum Bermain Agar Tidak Melakukan Kesalahan

Portfolio highlights

• trawa — The partner for renewable and affordable electricity for businesses. Get electricity directly from solar and windparks with corporate PPAs.

Portfolio highlights

• Fincovi — Powering Every Connection Purpose-built autonomous drones perform at record-setting inspection speed to minimize downtime while capturing the

Portfolio highlights

• Otark GmbH — Otark GmbH specializes in digitalizing green energy trading and is setting new standards in the industry. With a clear focus on neutrality and transparency, Otark is making trading in renewable energy more accessible. The company offers a fully digitalized platform that seamlessly integrates procurement and billing processes. As a result, Otarkenables straightforward and efficient processing of green energy transactions for every company, from industrial groups to SMEs.Otark aims to accelerate the energy transition by making it easier for its customers to access green electricity and simplify the management of their energy contracts through state-of-the-art digital solutions. Otark stands for innovation, neutrality, and reliability.
• Phonedeck — Phonedeck integrates mobile and video calling inside Salesforce. It is the first CTI solution for smartphones that makes it possible to remote control and track calls under the ‘real’ mobile number using regular carrier minutes. Phonedeck helps enterprises to manage and optimize business processes. The results are a large costs saving due tomobilizing sales teams and increasing the productivity.Phonedeck is Alcatel-Lucent and ISV Salesforce partner. In 2012 Phonedeck’s founder Prof. Dr.-Ing. Frank Fitzek was awarded with the Vodafone Innovation Prize. Alcatel-Lucent awarded Phonedeck during its Munich Hackathon in June 2014 as Innovative Leader in IMS. In January 2015 Phonedeck has won Disruptive Innovator 2015 award at Enterprise Mobility Management Forum.Phonedeck´s supporters are business angels, the IBB bank of Berlin and the venture capital fund Atlantic Internet.

Portfolio highlights

• CodeWords —
• Enzai — Enzai's AI governance platform allows you to build and deploy AI with confidence. Measure your progress in AI responsibility, and get actionable steps with our 3-minute maturity assessment.
• Clarifeye — Clarifeye is a software development company that offers an augmented reality-based surgical navigation tool.

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

• trawa — The partner for renewable and affordable electricity for businesses. Get electricity directly from solar and windparks with corporate PPAs.
• AXO — AXO Track upgrades rail assets with retrofit predictive maintenance systems to reduce costs, increase safety, and boost productivity.
• Vamo — Vamo specializes in heat pumps and provides proficient guidance and planning, as well as rapid and easy installation.

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

• Flatout Technologies — The "Internet of Things" starts at home! It is currently one of the fastest growing and hottest technological areas and many companies would love to enter it as soon as possible. We noticed that Telcos, Utilities & Retailers need a single point of contact that can provide them with a future-proof Smart Home solution. This is whereFlatout Technologies comes in, because we offer these companies an end to end solution based on our open, cloud based platform, called the FlatCloud. Our Smart Home as a Service offering encompasses our Operating System, Service & Support, Managed Hosting, a rebrandable user-friendly interface and consultancy in device management and the IoT Market. Last but not least, we believe that crowdsourcing will lead to success. Our platform has been built on web-based technology so our software works regardless of iOS or Android. Use Google Chrome, Safari, Firefox etc. to access the platform regardless of the device in your hands and make your home more energy efficient, secure and comfortable. By providing both a front-end API and a back-end API, the goal is to give developers the chance to program applications for the home and share them with the world.

Portfolio highlights

• Numbat — Numbat is a clean-tech company from Kempten (Allgäu). The competence lies in the development and production, as well as the operation of High-Power charging solutions with integrated battery storage system. The goal is to establish Europe's densest High-Power charging infrastructure to support e-mobility and its challenges. The battery storagereduces electricity costs and eases the burden on grids, while the integrated fast charging station allows customers/visitors/employees to fully charge their electric vehicles within 15 minutes. Depending on the location, the Numbats can be provided free of charge in a platform model. With its patented climate protection technology and multi-lifecycle approach, the Numbat is the most sustainable solutions on the market.
• ESFORIN SE — ESFORIN SE is a fully digital energy company, offering modularly integrable energy solutions – for both, power and gas.
• Efficient Energy Technology — Efficient Energy Technology makes renewable energy simple, safe, and dependable for everyone. Efficient Energy Technology develops a small power plant consisting of photovoltaic and storage for complete self-installation.

Portfolio highlights

• Itineris — Our cloud-based solution is built on the Microsoft Dynamics 365 platform and is specifically designed to meet the needs of Utility businesses.

Portfolio highlights

• trawa — The partner for renewable and affordable electricity for businesses. Get electricity directly from solar and windparks with corporate PPAs.
• handly — handly is becoming the leading company in the Service Tech industry. We enable people to create their ideal living environment, while empowering home service companies to build their business and saving time for a quality life.
• Melotech — We create art with technology for humans to enjoy. Within just one year, our work has been heard, seen and loved for more than 2 billion minutes in every corner of the planet.

Portfolio highlights

• trawa — The partner for renewable and affordable electricity for businesses. Get electricity directly from solar and windparks with corporate PPAs.
• NeoCarbon — NeoCarbon reverses climate change by dramatically cutting costs of Direct Air Capture leveraging cooling towers around Europe. By retrofitting existing infrastructure without impacting their original function, the time and cost needed to set up a carbon capturing system is improved by up to 10x.

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

• 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

• 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

• 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

• trawa — The partner for renewable and affordable electricity for businesses. Get electricity directly from solar and windparks with corporate PPAs.

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

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

Portfolio highlights

• JUMiNGO — Jumingo is an international digital shipping and carrier service provider. It is an innovative startup that has made the logistics industry clear and transparent for customers through a digital shipping platform. They facilitate both business and private customers to compare prices, packaging, and booking services from numerous shipping serviceproviders such as UPS, DHL Express, TNT, FedEx, GLS, and DPD with up to 80% discounted rates. Jumingo saves time and money with benefit from the dynamics and flexibility of their comprehensive range of services without any contractual obligations.
• CareerOS — Gain a competitive edge with our innovative tools, virtual career collaboration, real-time data, and AI enhancements. Guide students each step of the way!
• Meine Erde — Meine Erde is a provider of ecological burial option in Europe.

Portfolio highlights

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