Top 50 Renewable Energy Angel Investors in Europe in January 2026

Portfolio highlights

• Granola — Granola takes your raw meeting notes and makes them awesome. No awkward meeting bots - just beautiful notes for you and your team, every single time.
• Neptyne — Neptyne is making spreadsheets programmable
• Voltfang — We integrate used electric car batteries into a battery storage system and thus build up a decentralized storage network.

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• MaxFense — MaxFense is a company that focuses on enhancing the security of the internet through their ethical products. Primary among their offerings is the MaxFense Endpoint Security, which enables clients to check, prevent, detect, and respond to potential information security threats, regardless of whether they originate from inside or outside theorganization. This approach aligns with contemporary security standards that have increasingly recognized the importance of robust endpoint security in the face of diversified threat vectors.
• Reel Energy — Reel empowers all companies to procure renewable electricity that makes a real difference for the climate.
• Daytona — Deploy Al code with confidence using Daytona's lightning-fast infrastructure. 90ms environment creation, stateful operations, and enterprise-grade security.

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• Voltfang — We integrate used electric car batteries into a battery storage system and thus build up a decentralized storage network.
• Heimladen — Heimladen is a renewable energy source that drives human mobility. They offer a platform that acts as a real estate partner, controls the charging infrastructure, and takes care of project planning while keeping costs low, and enabling tenants.
• Greenflash — Greenflash places a premium on quality, efficiency, and client happiness. We collaborate with world-class partners to deliver you high-quality components and cutting-edge technologies. Our customized energy solutions are tailored to your specific needs and circumstances in order to get the best potential outcome for you.

Portfolio highlights

• autarc — We supercharge installers with our OS to become heat pump champions
• Heimladen — Heimladen is a renewable energy source that drives human mobility. They offer a platform that acts as a real estate partner, controls the charging infrastructure, and takes care of project planning while keeping costs low, and enabling tenants.
• Greenflash — Greenflash places a premium on quality, efficiency, and client happiness. We collaborate with world-class partners to deliver you high-quality components and cutting-edge technologies. Our customized energy solutions are tailored to your specific needs and circumstances in order to get the best potential outcome for you.

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• Montamo — Montamo trains lateral entrants with standardized methods. We rely on both our on-site academy and our digital learning software.
• Graswald — 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

• 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

• Peimi — Peimi is the definitive tool to automate the calculation of commissions. We integrate with the main CRM and ERP to obtain the data and display it in a safe and friendly environment for sales, HR and finance people to review and approve incentives. We integrate with the main CRMs and ERP on the market (Hubspot, Salesforce, Pipedrive...)
• Mas Leads — Mas Leads Technologies, through its SaaS (Software as a Service), assists B2B firms' Marketing and Sales Departments in obtaining the best real-time data on new potential clients in national and international marketplaces, thereby automating the lead creation process.
• Hoop Carpool — Hoop Carpool is a SaaS Carpooling Platform for Companies, Universities and Citi-halls

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• Kickscale — The AI-powered conversation intelligence platform records, transcribes, and analyzes meetings to provide tailored training recommendations to every sales rep
• VoiceLine — VoiceLine is AI-powered field sales revenue intelligence. Document any customer interactions in seconds, get actionable insights and boost sales performance. Start today!
• Planted Green — Planted Green plants mixed forests to compensate for CO2 emissions.

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• 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.

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• Reel Energy — Reel empowers all companies to procure renewable electricity that makes a real difference for the climate.

Portfolio highlights

• autarkize — autarkize scales a market-ready system technology with which a high-quality gas made of methane and hydrogen is extracted decentrally from residues.
• Planted Green — Planted Green plants mixed forests to compensate for CO2 emissions.

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• Bourn — Bourn's technology is designed to automate cash flow management, offering SMEs fast access to capital.
• Capsa AI — Providing next-generation investors with a competitive edge.
• Embed — The regulated Payments Platform unifying crypto and fiat rails. Fung has launched early beta. Sign up to secure your spot.

Portfolio highlights

• Enpal — Kostenlose Planung von Solaranlagen. Gewinnbringende & schnelle Umsetzung von Photovoltaikanlagen inklusive professionelle Installation & Netzanschluss. Zum Festpreis!
• memmo.me — memmo.me provides a webpage for offering and distributing personalized video messages from actors, athletes, musicians, and other talent.
• TAU Systems — TAU Systems provides medical imaging technology.

Portfolio highlights

• Reel Energy — Reel empowers all companies to procure renewable electricity that makes a real difference for the climate.

Portfolio highlights

• Balio — Personal Finance Manager and Investing
• Rauda AI — Rauda is an artificial intelligence platform specialized in automating customer service with the best customer experience. Take a quantum leap in productivity, reduce costs and improve customer satisfaction with the power of generative artificial intelligence.
• Solfy — Solfy is a Marketplace for self-consumption of solar energy.

Portfolio highlights

• Splitfy — Splitfy is the perfect app to collect money from your plans Group.
• Solfy — Solfy is a Marketplace for self-consumption of solar energy.
• Housfy — Housfy develops a digital platform designed to sell flats and houses between private individuals. The company's digital platform eliminates intermediation in the sale of houses, offering all the necessary tools for sellers and buyers to connect directly online, enabling home buyers and sellers to avoid traditional agencies and save brokeragefees.

Portfolio highlights

• fynk — Create, edit, negotiate and sign contracts quickly with fynk. Give your team back valuable time. Test it now for free!
• Balun — Balun is a machine learning platform that forecasts electricity generation with unrivaled precision by analyzing multiple meteorological and energy market inputs, allowing renewable energy producers to optimize production, reduce penalties, and assure a stable, efficient grid.
• Newsrooms.ai — Newsrooms.ai is an AI-powered content production and management platform that enables businesses and news organizations to automate their whole content pipeline—from research and content generation to publishing across many digital channels.

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

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• Heatio — Heatio provides affordable renewable energy to homeowners.

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• SunRoof — Roof of the future

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• GreenSpur Wind — Time To ACT plc supports the global transition to Net Zero through the development and commercialisation of world-beating clean technologies

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

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• 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

• Invinity Energy Systems Plc — See what makes Invinity the world's leading manufacturer of utility-grade energy storage - safe, economical & proven vanadium flow batteries.

Portfolio highlights

• MARCLEY — MARCLEY provides a system that enables multi-family building apartment owners to utilize solar energy on their roofs without any financial commitment or additional effort. The generated green power is sold at a cheaper cost than the local basic utility.

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• Renew Risk — Renew Risk offers science-driven risk analytics and products to secure renewable energy infrastructure and support the energy transition.

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• Qkera — We develop drop-in solutions improving battery technologies and advancing future energy storage.

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• Qkera — We develop drop-in solutions improving battery technologies and advancing future energy storage.

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• Qkera — We develop drop-in solutions improving battery technologies and advancing future energy storage.

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• ALVA Energie — Alva delivers turnkey solar systems with integrated energy, heating, and e-mobility for buildings

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• feld.energy — feld. energy enables farmers to produce sustainable energy without sacrificing agriculture.Agri-PV is a solution that brings benefits to all parties.
• ALVA Energie — Alva delivers turnkey solar systems with integrated energy, heating, and e-mobility for buildings

Portfolio highlights

• Fibersail — Fibersail redefines the knowledge on wind farms, through a reliable and cost-efficient shape sensor able to monitor each deflection.

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• 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.

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• Amperecloud — ampere.cloud is Renewables & Environment company

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• Holyvolt — Our mission is to provide the world with high-efficiency renewable energy solutions at an affordable cost and with minimal environmental impact.
• MAJORITY — MAJORITY is the first digital financial service dedicated to serving migrants worldwide. For $5 a month, MAJORITY members in the U.S. receive an FDIC-secured account, VISA® debit card, use of more than 55,000 ATMs across North America, remittance and international calling, native language advisors, and access to our network of community meet-upspaces, local discounts and events. With MAJORITY, there are never overdraft fees or minimum balance requirements. MAJORITY was started in Sweden by a diverse team of banking, fintech, payments, and telecom executives serving immigrant communities globally for the last 15 years. MAJORITY’s U.S. headquarters are in Houston, Texas.
• Gilion (Formerly Ark Kapital) — Ark Kapital is a precision financing company that empowers technology businesses to grow faster, enables owners to maintain control, and reduces risk for investors. ArK is founded by a world-class AI technology developer, a six-time-founder, and the veteran banker you always wanted.

Portfolio highlights

• Allone — Increase your workplace safety with Seecure, a digital safety solution. The app lets you activate alarms during emergencies.
• Epishine — Epishine's goal is to be able to provide the world's most scalable, resource efficient, and affordable solar modules. Epishine sells light energy harvesting modules to manufacturers of wireless products. The modules are used to harvest light in any lighting conditions, turning light into usable power.
• Lightdash — Connect your dbt project to Lightdash and allow everyone to answer their own data questions. Built for analysts and the modern data stack.

Portfolio highlights

• 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.
• Gladia.io — 1 stop shop AI API hub for developers
• Hyperline — Enjoy the most flexible billing platform for B2B SaaS businesses. Start today without a single line of code.

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• Eternal Power — Eternal Power is a globally integrated mass production of green hydrogen and derivatives such as sustainable fuels.

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• MARCLEY — MARCLEY provides a system that enables multi-family building apartment owners to utilize solar energy on their roofs without any financial commitment or additional effort. The generated green power is sold at a cheaper cost than the local basic utility.

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• avoltra — Avoltra aims to position itself as an "intelligent energy purchasing solution" by leveraging advanced technology and data-driven insights to optimize energy procurement.
• Rulemapping Group — Rulemapping Group is a rule-based AI platform that enables a level of end-to-end automation for rule-based processes. Automated decision-making solutions for digital legislation, administrative operations, legal procedures, and regulatory compliance.
• Atmen — Atmen, formerly known as Point Twelve, automates hydrogen and e-fuels certification, saving you up to 90% time in the process.

Portfolio highlights

• avoltra — Avoltra aims to position itself as an "intelligent energy purchasing solution" by leveraging advanced technology and data-driven insights to optimize energy procurement.
• Atmen — Atmen, formerly known as Point Twelve, automates hydrogen and e-fuels certification, saving you up to 90% time in the process.

Portfolio highlights

• NewLimit — NewLimit is extending human healthspan by unlocking regenerative potential.
• Cortex — Cortex makes it easy for engineering organizations to gain visibility into their services and deliver high quality software.
• Rivan Industries — Rivan Industries designs and builds modular, vertically integrated, synthetic fuel plants.

Portfolio highlights

• CollectiveCrunch — CollectiveCrunch is an AI leader in the forestry industry. We collect and analyze a wide range of information, including climate, geo and process data, to bring best-in-class forest inventories and accurate carbon storage calculations to our customers. The largest forest owners the Nordics and Baltics are already using using our solution, LindaForest.With Linda Forest, our customers gain actionable insights, leading to improved forest management, informed forest investments and up-to-date carbon storage analytics. Overall, Linda Forest can reduce forest planning costs while increasing accuracy. We are currently focused on the Nordic and Baltic countries but are soon adopting the solution to Northern America, Russia and other forestry markets. Moreover, we are working with insurance companies to apply our expert analytics to new opportunities such as prediction of forest risk.

Portfolio highlights

• Empion — EMPiON – The Robo Advisor for Cultural FitEmpion is a data-based job platform that matches companies and applicants based on company culture, values and skills. Using an AI-based Robo Advisor, Empion quantifies company culture and implements automated headhunting.Every second employee is currently thinking about a job change. The 5 mostimportant factors for job satisfaction have to do with company culture and values. And yet, company culture remains largely ignored on customary job portals. The results for companies and applicants are inefficient hiring processes and high employee turnover.Our vision is bringing company culture to every hire in the world.For more information visit www.empion.de
• MARCLEY — MARCLEY provides a system that enables multi-family building apartment owners to utilize solar energy on their roofs without any financial commitment or additional effort. The generated green power is sold at a cheaper cost than the local basic utility.
• Widgetbook — Widgetbook is an open source tool for organizing widgets in Flutter. It accelerates UI development and improves the collaboration between developers, designers and clients.

Portfolio highlights

• Palm — Cash Management for the Modern Treasury
• Kontigo — We help underbanked gig workers in Latam build credit and access group financing where small groups of family or friends lend and save money together. Users can validate their income from multiple sources such as gig apps, catalog sales, and open finance (Uber, Rappi, Didi, Indriver, Avon, and all major banks). After verifying the income wedirectly offer them group savings and group loans, without leaving WhatsApp, their primary messaging app.
• Keyring Network — Blockchain compliance solutions for the financial sector.

Portfolio highlights

• Graswald — Graswald engages in the creation of natural and digital 3D worlds for the entertainment industry.
• YGO.AI — YGO Trips revolutionizes the travel booking experience with our AI-driven platform, providing a seamless, all-in-one solution for planning your perfect getaway. Our innovative platform streamlines your holiday planning by offering an extensive selection of flights, hotels, mobility services, activities, concerts, and festivals & more all inone convenient location. With YGO Trips, you have the power to tailor your holiday to your exact preferences, creating a personalized itinerary that aligns with your desires.Leveraging cutting-edge AI technology, YGO Trips discerns your preferences to suggest events and activities that resonate with your interests, ensuring every aspect of your trip is as enjoyable as possible. It's not just about booking a trip; it's about crafting the unique holiday experience that you've always dreamed of, effortlessly and all from one provider.
• YOUTH — Full health check-up in less than 2 minutes!

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

• Gazelle Wind Power — UNLOCKING THE MASSIVE DEEP-WATER WIND MARKET: Introducing Gazelle's hybrid attenuated mooring platform, an evolutionary step-change in the design of floating platforms.
• Breathe Battery Technologies — Breathe Battery Technologies is a research-led technology company developing advanced battery management algorithms

Portfolio highlights

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

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.