Top 50 Renewable Energy Angel Investors (June 2026)

Portfolio highlights

• Orbit Fab — Orbit Fab is creating the future of on-orbit satellite refueling. We maximize your operational assets by enabling mission flexibility and freedom of action in space.
• Durin — Mining technology company developing next-generation exploration drilling hardware and software.
• Deterrence — Deterrence is a defense technology company focused on automating the production of reliable, safe energetics at scale.

Portfolio highlights

• Echodyne — Echodyne develops and manufactures meta-materials-based radar technologies. The company combines the patented technology of metamaterials with powerful software to create a radar sensor with unprecedented performance at commercial price points. Echodyne's patented technology and powerful software create a high-performance radar platform thatproduces security and machine autonomy solutions for government, defense, and industry.Echodyne was founded in 2014 and is headquartered in Kirkland, Washington.
• TerraPower — Leading innovations in nuclear applications for reactor and storage technology, while advancing methods to transform the fight against cancer.
• Lumotive — Lumotive is a Seattle-based startup company developing high performance, solid-state lidar for autonomous systems in the automotive, UAV, robotics and related industries. The company's revolutionary beam-steering technology leverages Liquid Crystal Metasurfaces (or LCMs) implemented in mature semiconductor manufacturing processes to deliversmall, inexpensive 3D perception systems with unprecedented performance and reliability. For more information, visit us at www.lumotive.com.

Portfolio highlights

• Battery Pollution — Battery Pollution Technologies is establishing a national circular economy for lithium-ion batteries. Our comprehensive technology encompasses the entire lifecycle, from safe end-of-life management to eco-friendly repurposing and novel chemical recovery of critical battery materials.
• Dumaresq Solar Farm — Large Scale Solar Farm & Battery Storage Development based in northern NSW, Australia

Portfolio highlights

• Kevala — Kevala helps our customers predict and plan for a safer, more effective, and environmentally sustainable grid through our cloud-based data analytic and visualization platform.
• Tandem PV — Discover the future of sustainable energy with Tandem PV, a leader in perovskite solar technology and innovative solar energy solutions.
• Rock Rabbit — We make the rebate process quick, accurate, and efficient so contractors and homeowners can focus on their projects.

Portfolio highlights

• Exowatt — Modular full-stack renewable energy solutions for commercial and industrial customers.
• BRINC Drones — BRINC is a US company developing tech in the service of public safety. Known for Drone as First Responder, indoor tactical drones and more.
• NOYACK — NOYACK builds agentic AI technology for wealth management, starting with NOYACK.ai—the first AI agent for financial literacy - and Prophit.ai , the first opensource AI agent for portfolio optimizations of ALL asset classes. The fintech platform uses autonomous AI to deliver personalized financial guidance and construct tax-optimized portfolioscombining traditional accounts (IRAs, 401(k)s, HSAs) with private market investments in venture capital, fine art, and real estate for Millennials and Gen Z investors

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

• uHoo — Air quality, now visible. Discover uHoo TRUSTED BY Elevate your health, focus, and performance https://www.youtube.com/watch?v=miqSQuOVWjs&list=PLC-yooIAsXuwt0o22nxVp9wJrTCsjIvBE&index=7 WHY UHOO? Optimize your air to maximize your life. Indoor air quality affects your overall health and well-being. Let uHoo measure and monitor your air quality for a healthier indoor environtment. Less Allergies Know exactly what products and chemicals to
• Aqwire — AQWIRE fully utilizes Smart Contract technology to process cross-border real-estate transactions. The platform is engineered to remove many of the roadblocks endemic with international real-estate.
• Aqwire —

Portfolio highlights

• Notte Group — A family run venture organization mainly focused over investment management and project planning within areas of energy, renewables, farming, agritech!
• AASAN Consultancy — AASAN Consultancy is a management consulting firm providing energy management and engineering services.Its primary focus is on cost reduction, energy consumption analysis, and evaluation, as well as future-oriented planning for the cost-saving strategies for the energy supply. The firm identifies the possibilities to reduce current energy billswithout any impact on the consumer's current quality, volumes, or safety standards.Ratilal M. Bavarva founded the firm in 2018 with its headquarters in Rajkot, Gujarat.
• Habaple Solar Technology Limited — An intertwine solar technology company with a next generation of 2.1 MW powerhouse grid base module system with an annual source of electricity generation. The project will be under the guideline of Ministry of New and Renewable Energy (MNRE), Deutsche Gesellschaft für Internationale Zusammenarbeit GmbH (GIZ), Ministry of Power.

Portfolio highlights

• 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

• Praan — Praan builds the world's most advanced air purification technologies for commercial and industrial applications.

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

• 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.

Portfolio highlights

• Amperon — Our AI-powered demand forecasts help companies manage risk and navigate volatile energy markets.
• SMASHsolar — SMASHsolar breaks down barriers to solar for homeowners and contractors. The biggest barriers to solar adoption are cost and complexity. We have developed a simple, snap-together solar module that installs 2x faster than conventional solar, significantly reducing labor skill, labor cost and increasing crew throughput, which result in lowerinstallation costs. Since the SMASH system is easy to expand, homeowners can buy a what they need today and upgrade when they want more power.
• Distributed Energy Pte Ltd — Distributed Energy is a development and aggregation platform that connects renewable projects with funders.They are experienced platform aggregators who have come together to enable renewable energy projects in the developing world.The Distributed Energy platform reviews, screens and lists fundable projects on their marketplace. Investors canexpress interest to invest in credible opportunities. Their smart contracts and blockchain produce a robust link between parties, automating payments. They also provide ongoing reporting on performance of the assets.

Portfolio highlights

• Zero — Protect your devices and gain access to websites. Round-the-clock customer support. VPN for Windows, Android, macOS, iOS, and routers. Free trial period.
• Twirl — A seamless experience for deploying data products
• SimpleStudy — Learn smarter with revision notes, past papers, quizzes, and expert tools for major Irish academic exams. Join SimpleStudy Ireland and boost your grades today.

Portfolio highlights

• Voidzero — Voidzero is a software development company that offers open source toolchain for JavaScript.
• Daytona — Deploy Al code with confidence using Daytona's lightning-fast infrastructure. 90ms environment creation, stateful operations, and enterprise-grade security.
• Dimension — The state of the art collaboration platform for modern engineering teams. Chat, project management, smart actions, and more, accelerated by AI.

Portfolio highlights

• Granola — Granola helps you keep momentum on what matters. You stay present, Granola turns your conversations into a rich, searchable memory.
• 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.

Portfolio highlights

• AtomBeam — AtomBeam is a software company that is developing an artificial intelligence driven ecosystem of algorithms and computational paradigms that will transform the way data is transferred and stored, dramatically reducing the size of data transferred but without adding latency, using only modest computing power. This technology has profound benefitsfor a very large number of applications, in particular IoT and edge computing. The technology's advantages are unmatched and give it a wide range of uses: a) it can act on very small packet sizes, enabling it to stream data, b) computational latency is near zero, c) it is not sensitive to data errors, and c) it provides random file access. It has the potential to be virtually universal, especially in IoT.
• SmartGurlz — Coding robots for girls. Teach coding and Scratch for kids. Girls learn to code. Alternative to Dash and Dot. STEM for Girls. Girls Who Code. Coding for beginners. Girl Scouts and STEM. Kode with Klossy. Shark Tank company. As Seen ABC's Shark Tank. Equity in School. STEAM. Coding Camps. STEM for Girls.
• Pops Diabetes Care — If you are an employer, caregiver, or just someone who wants an easy diabetes management system, Click here to learn how we can help!

Portfolio highlights

• Centivax — Centivax is a healthcare-based agency that provides biotechnology, pharmaceutical, medical device manufacturing, and therapeutic services.
• The Interaction Company of California — The proactive AI assistant in your iMessage, WhatsApp, and more. Texts like a human, really knows you, and integrates with your life in dozens of ways.
• Enclave — Enclave is a cybersecurity startup that builds an AI‑native code‑security agent for software development and DevSecOps teams. It analyzes entire codebases to triage scanner noise and surface only the vulnerabilities that truly matter, using cross‑file taint analysis and trust‑boundary mapping. The platform helps engineering teams ship code fasterwhile reducing the risk of exploitable security issues in production. Enclave primarily targets software companies and enterprises that prioritize secure, high‑velocity development.

Portfolio highlights

• Onsite Pro — Join the green workforce America needs now
• Coral Vita — Coral Vita's innovative coral reef restoration grows diverse, resilient corals to protect marine biodiversity and support communities dependent on healthy reefs
• Cambium — Saving wood to save the planet. By revolutionizing supply chains, we introduce the world's first carbon smart material.

Portfolio highlights

• Heliogen — Heliogen is a renewable energy technology company unlocking the power of sunlight to replace fossil fuels.
• Sienza Energy — Sienza Energy is developing a radical new approach to design and manufacture batteries. The company’s revolutionary strategy is based on a 3D nanotechnology electrode structure that takes advantage of advances in multiple fields over the last decade, providing an approach to battery design that is unique in the industry. By combining these advancesin an innovative way, Sienza can drastically improve the batteries’ energy and power densities — all with the goal of simultaneously reducing the overall battery costs. With this new approach, Sienza Energy can provide even more capability in a range of products, from smart devices to electric vehicles.
• Alyssum Therapeutics — Alyssum Therapeutics is a biotechnology company that focuses on developing next-generation immunotherapies to modulate B cells.

Portfolio highlights

• Mast Reforestation — No-cost reforestation for post-wildfire burned acreage for landowners and foresters, funded by carbon removal credits.
• Sugarlogix — A precise reflection of human milk to provide the best nutrition for babies
• Mast Reforestation — No-cost reforestation for post-wildfire burned acreage for landowners and foresters, funded by carbon removal credits.

Portfolio highlights

• Praan — Praan builds the world's most advanced air purification technologies for commercial and industrial applications.
• Prevently — Prevently is a website that provides consumers with physician-reviewed health articles, physician-approved health products, health apps, and telemedicine consultations. These services centralize around an online patient profile that integrates data utilizing APIs from multiple personal health tracking devices.

Portfolio highlights

• HiWi — HiWiPay offers secure & fast international B2B payment solutions built for Indian exporters. HiWipay is RBI-compliant cross-border platform to receive global payments.
• Kidbea — Kidbea is India's first sustainable fashion-tech brand exclusively for kids. We make "certified organic, spill-proof, anti-bacterial, breathable, and softest" kids products. We aim to provide non-toxic sustainable products to the children and a relaxed parenting to every toddler's parent.
• Nava — AI-native cloud infrastructure designed for intelligent workloads. Deploy, scale, and manage your AI systems with autonomous cloud computing.

Portfolio highlights

• ClimateAI — Build climate resilience with accurate insights and actionable recommendations that will give you a competitive edge.
• WeaveGrid — WeaveGrid operates with utilities and owners of electric vehicles (EV) to allow and speed up transportation electrification. Using machine learning, optimization, and predictive analytics, the company's software solution solves several EV-grid integration challenges for utilities in a systems-oriented manner; helps integrate renewable energyresources on the grid; and saves utility customers' money on their bills.
• The Happy Home Company — The Happy Home Company is your Personal Home Manager. Managing your home is expensive, complicated, and time consuming. They solve this problem by connect homeowners with an affordable Personal Home Manager, who is supported by powerful technology, and a trusted service network

Portfolio highlights

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

Portfolio highlights

• 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

• ZunRoof — Buy solar systems at lowest price. Install solar rooftop to get lowest price and best quality solar panel, inverter, structure. Get a Solar Rooftop. Quality and subsidy assured. Reduce Electricity Bill by 100% by Going Solar. Make Money from Sun.

Portfolio highlights

• Kavaken — Kavaken offers artificial intelligence-powered solutions to renewable energy asset owners.

Portfolio highlights

• Cardenxe Sotol — Artisanal Small Batch 100% Sotol Spirit Cardenxe Sotol is a terroir-inspired premium craft spirit, distilled from the heart of the Dasylirion plant, in North of Mexico - where it holds a Denomination of Origin. Every label (Desierto and Sierra) honors a different environment in which the plants used to distill grew.
• Terraformation — Terraformation creates partnerships to scale reforestation with hardware, software, and knowledge based solutions.
• Rebellyous Foods — Rebellyous Foods makes crispy, juicy, 100% plant-based nuggets. Your guests will love the taste. Your team will love the simplicity. Get Rebellyous with us!

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

• Leadoptik — Leadoptik is a California-based company is currently operating in stealth mode.
• Modality.AI, Inc. — Modality.ai is an AI-powered platform that detects health conditions using conversational AI. Through dialogue and video, Modality.AI interacts conversationally with the patient to provide health assessment anywhere, anytime. Its system analyzes multimodal data which allows continuous screening and assessing of patients’ health.
• Gray Oncology Solutions — Gray Oncology Solution is a healthcare enterprise software company that commercializes GrayOS, the operating system for oncology.

Portfolio highlights

• Arcadia — Arcadia unlocks access to global utility data. Our technology powers the next generation of climate solutions, giving anyone the tools to electrify and decarbonize.

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

• 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

• 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

• Bot-It — Online automation for everyone. Let Bot-It automatically complete your online tasks.
• Allstar — Free, fast, and easy clip capture with zero FPS drop for Counter-Strike 2, League of Legends, Fortnite, and Dota 2.
• Glove Wrap — Glove Wrap is a latex-free, thermoplastic elastomer band with the precise thickness, width, and length required to break in and shape your complete baseball glove while making the ideal pocket. Wrapping your glove with Glove Wrap applies pressure to the glove, reshaping it for easy use.

Portfolio highlights

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

Portfolio highlights

• XBOW — XBOW operates autonomously, carrying out commands and analyzing the results to achieve higher-level objectives.
• Julius AI — Julius is a powerful AI data analyst that helps you analyze and visualize your data. Chat with your data, create graphs, build forecasting models, and more.
• Artificial Intelligence Underwriting Company — AIUC certifies and insures AI agents to unlock secure adoption.

Portfolio highlights

• Baseten — Baseten is the ML Application Builder for data science teams. Ship full-stack apps in minutes. No frontend, backend, or infrastructure knowledge required.
• Airbound — Welcome to Airbound, where we're reaching the unreachable with our zero infrastructure deliveries. Discover our innovative solutions for efficient and sustainable delivery systems.
• Craftwork — Craftwork is a modern general contracting company that uses technology to simplify repair and renovation projects for homeowners.

Portfolio highlights

• FOHAT — FOHAT, an Energy Intelligence company, is changing the energy sector with innovative solutions by allowing integration of distributed energy resources (iDER) and new solutions for energy trading (P2P TE).

Portfolio highlights

• EcoBites — EcoBites is a subscription service that delivers sustainably sourced and eco-friendly packaged snacks and meals to consumers doorsteps.
• Lawyeree — A platform offering AI legal advice to clients and allowing clients to be connected with the best lawyers.
• SafeNest — SafeNest offers a comprehensive home security system integrating smart technology with professional monitoring services.

Portfolio highlights

• Hive Power — Hive Power provides a SaaS platform to optimise your existing electrical distribution grid, both from the technical and economic points of view.

Portfolio highlights

• Vendia — Vendia unifies all enterprise data to power secure, AI-driven outcomes with real-time control, centralized governance, and seamless data harmonization.
• Heliogen — Heliogen is a renewable energy technology company unlocking the power of sunlight to replace fossil fuels.
• AssetPlus — AssetPlus focuses on offering digital-first solutions to financial advisors and mutual fund distributors.

Portfolio highlights

• Arcadia — Arcadia unlocks access to global utility data. Our technology powers the next generation of climate solutions, giving anyone the tools to electrify and decarbonize.

Portfolio highlights

• Tap Electric — Find and use chargers on our trusted network like Osprey, Fastned, Ionity and Vattenfall. You can also manage your chargers our free software, all in one app.
• NewMotion — Shell Recharge biedt thuisladers, een snellaadnetwerk en een gratis laadpas en app waarmee je bij ruim 300.000 publieke laadpalen in Europa terecht kunt.

Portfolio highlights

• Agnikul — Agnikul is a space tech startup that designs, manufactures, tests, and launch orbital-class rockets for micro and nanosatellites. They currently work out of the National Center for Combustion R&D at IIT-Madras. Rocket scientists, engineers, ex-bankers and space lawyers are a part of their team. This unique blend of people is one of theirbiggest strengths. The company was founded in 2017 and is based in Chennai, Tamil Nadu.
• Log 9 Materials — The spirit of innovation remains the cornerstone of every mission here at Log9. We have failed numerous times in this mission of ours, only to learn from them
• Toffee Ride - Learning App for Classes I - IV — Toffee Ride is a learning App that is singularly focused on helping your child develop a thorough understanding of fundamental concepts.

Portfolio highlights

• Quandl — The source for financial, economic, and alternative datasets, serving investment professionals.
• Last Energy — Last Energy is creating a new system for the development and delivery of small modular nuclear power plants. Combining proven reactor technology with a first-of-its-kind delivery model and fully modular plant design, Last Energy aims to decarbonize energy production and increase access to clean, affordable power.
• Gridtential Energy — Gridtential Energy or Gridtential. Silicon Joule technology transforms lead batteries into safe, long-lasting, high-power source of energy.

Portfolio highlights

• Praan — Praan builds the world's most advanced air purification technologies for commercial and industrial applications.
• Styledotme — Mirrar is a Augmented Reality (AR) SaaS platform from Styledotme which is the world's first Real time AR platform for Jewellery shopping.
• Trulymadly — Truly Madly is one of the best matchmaking app in India connecting singles across the country. Make friends, meet new people, or find your forever with the Top Dating App Online by Truly Madly.

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.

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.