Top 50 Clean Energy Angel Investors in United States (November 2026)

Portfolio highlights

• Skiff — Everything on Skiff is end-to-end encrypted. Your most sensitive data is private, decentralized, and truly owned by you.
• Swarm Aero — Swarm empowers small teams to mobilize thousands of uncrewed vehicles in communications-limited, contested environments.
• Keeper — Find the right person. Build something meaningful together.

Portfolio highlights

• X (formerly Twitter) — X, formerly Twitter, is a global social networking platform that allows its users to send and read 280-character messages. It enables registered users to read and post their tweets through the web, short message service (SMS), and mobile applications. As a global real-time communications platform, X has more than 400 million monthly visitors and 255 million monthly active users around the world. X’s active group of registered members includes World leaders, major athletes, star performers, news organizations, and entertainment outlets. It is currently available in more than 35 languages.
• Cmax System — Cmax System designs, manufacture, and distributes an innovative system of emergency shelters to improve the living conditions and enhance the dignity of the millions of refugees.It is designed with many unique characteristics: foldable, mobile, affordable, reusable, and more. It is the lightweight, All-in-One solution fully equipped with survivalnecessities, and assembles tool-free in just 11 minutes. The rigid and raised floor design prevents collapse and makes Cmax an innovative replacement to the primitive tent.
• HempNFibers — Growing hemp. Making a bio fuel to start. Than also an insulation out of it as well. Will look at doing more as company grows. I also know a way to power a whole warehouse by just the plants it’s self but I need funding to get this started. I’m building the transportation side just so I can gain an income to try and get this started.

Portfolio highlights

• SnapMD — SnapMD, Inc. owns and operates a cloud-based patient-to-provider telemedicine platform that connects parents and their children with pediatric physicians in the United States. Its platform also enables healthcare providers to connect with patients needing time-sensitive consultations and follow-up medical visits; and facilitatesphysician-to-physician consultations. The company serves customers through smartphones, tablets, laptops, desktop computers, and other Internet enabled devices. SnapMD, Inc. was founded in 2013 and is based in Glendale, California.
• Stimwave Technologies — Stimwave Technologies, Inc., a medical device company, engages in the development, manufacture, commercialization, and marketing of wireless microsize injectable medical devices for neurology markets. The company was formerly known as Neural Micro Incorporated. Stimwave Technologies, Inc. was incorporated in 2010 and is based in Scottsdale,Arizona.
• Aqueduct Critical Care — Aqueduct Critical Care addresses the critical care problem of managing inter-cranial pressure. Its working prototypes demonstrate the ability to allow the patient to move, and minimize attention from nursing staff. Aqueduct Critical Care was founded in 2013 and is based in Bothell, Washington.

Portfolio highlights

• Staris — Staris is an AI-powered application security platform that continuously finds, proves, and explains exploitable vulnerabilities. Reduce false positives and validate real application risk with business context.
• 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.
• Mirai — Mirai Labs builds uzu, a Rust LLM engine for iPhone, iPad and Mac, and 4-bit/8-bit Qwen, LFM, Muse-Glimmer and d3-flash models benchmarked vs MLX and llama.cpp.

Portfolio highlights

• SLUSHY — SLUSHY is a secure mobile web based platform for content creators to find, grow, & monetize their audiences. A creator first, tech-driven tool, designed with key discoverability features and audience insights. In a market where existing solutions (OnlyFans, Patreon) fall short of their creators' demands, SLUSHY provides an alternativesolution for professional content creators that prioritizes their monetization, support and management needs. SLUSHY incorporates a powerful legal framework, with robust compliance tools including simplified consent, ID verification, and content moderation. The new home of unrestricted content, SLUSHY is here.
• Unsloth AI — Unsloth is an open-source, no-code deskop UI for training and running open models on your local hardware.
• OneImaging — OneImaging makes life-saving diagnostics affordable, accessible, and personal. We connect employers, health plans, and members to a trusted national network of imaging centers, delivering faster answers with transparent pricing and premium care across MRIs, CT scans, ultrasounds, mammograms, X-rays and more. We serve organizations looking to control medical spend and individuals who need reliable results without delays. Every scan booked through OneImaging is proof that healthcare can be simpler, cheaper, and kinder.

Portfolio highlights

• GoDays — AI-driven Continuous passive and active analytical tool, preventing burnout of employees. Continuous well-being based on passive collaboration data, sentiment analytics.
• PLATMA — PLATMA is a workspace for developing low/no-code solutions with ready-made constructors that reduce the need for large resources and decrease time to market
• Prosper Pay — Prosper Pay is a financial platform that allows employees to view up-to-date earnings and transfer funds.

Portfolio highlights

• BloomCredit — Use Bloom to engage and understand your customers through credit data. Help your customers qualify for your loans, credit cards, and credit products. Create relationships with your customers through personalized financial advice and support.
• Levels — Improve metabolic health with CGM, comprehensive labs, and a personalized plan.
• Field Complete — Field service management software built by contractors. Schedule, dispatch, invoice & get paid in one app. Start your 14-day free trial.

Portfolio highlights

• Snapi Health — The most convenient way to monitor your baby's gut health
• Field Complete — Field service management software built by contractors. Schedule, dispatch, invoice & get paid in one app. Start your 14-day free trial.

Portfolio highlights

• Simply Homes — Sell your home fast for cash - As-is. No repairs. No updates. No showings. Pay zero fees.
• Field Complete — Field service management software built by contractors. Schedule, dispatch, invoice & get paid in one app. Start your 14-day free trial.
• Jumpstart — Jumpstart is a social e-commerce platform that engages in helping entrepreneurs to manage their ongoing compliance in real-time.

Portfolio highlights

• Sumble — Sumble provides a sales intelligence platform that crawls the web for technographic and contact data, giving sales teams context on prospective customers.
• Medra AI — Building robotics to accelerate scientific breakthroughs. At Medra, our mission is to automate repetitive wetlab tasks so scientists can more easily collect data and run the experiments needed to make groundbreaking scientific discoveries.
• Shellworks — Reimaging nature's packaging with beautifully sustainable, truly compostable alternatives to plastic for cosmetics and beauty products.

Portfolio highlights

• Ware — Ware deploys autonomous, self-flying drones—combined with machine learning—inside warehouses to automate their inventory tracking. Designed to solve some of the $1.9 trillion warehousing industry’s most pressing issues, Ware’s product helps their customers operate more efficiently. A partner of Skydio and funded by Bloomberg Beta, Ware works withthe world’s largest 3PL’s and global brands to improve their accuracy, workflows, and save money.
• Radiant — Clean. Portable. Safe. Energy
• Replenysh — Replenysh is a set of tools for communities and companies to build circularity in days, not years.

Portfolio highlights

• Mantic — Mantic is a world-class technical team on a mission to solve the next AI grand challenge: predicting global events with superhuman accuracy, and deploying this capability to power radically improved decision-making in business and government.
• Pilgrim — Pioneering a biologically enhanced future for humanity.
• Bleu Robotics — Bleu Robotics is an advanced AI and automation company that develops cutting-edge robot learning software designed to deploy humanoid robots seamlessly into industrial environments. Drawing on two decades of academic research in robotics and artificial intelligence, the company addresses the flexibility bottlenecks of traditional, fixed factory automation.

Portfolio highlights

• Kumo.AI — Kumo is a platform that uses artificial intelligence to help businesses make predictions from their data, like customer churn or product purchases.
• World Labs — World Labs is an AI startup that can analyze visual data with comprehension akin to a person's, a substantial advancement above existing capacities.
• Tomorrow Farms — Tomorrow Farms is a food technology company on a mission to fuel the sustainable food revolution with irresistible food and beverage brands.

Portfolio highlights

• Arcadia — Arcadia is the energy intelligence platform for businesses. We replace fragmented tools and manual workflows with one platform to pay utility bills, buy energy, and advance sustainability.

Portfolio highlights

• Arcadia — Arcadia is the energy intelligence platform for businesses. We replace fragmented tools and manual workflows with one platform to pay utility bills, buy energy, and advance sustainability.

Portfolio highlights

• COOK — COOK is a manufacturer and retailer of frozen ready meals.
• Cashican People LLC — Cashica is a quantitative cryptocurrency investment firm that aims at web3 and metaverse innovations across the world. Cashican also named Cashican People LLC was founded in 2017 and is headquarted in New York.
• HempNFibers — Growing hemp. Making a bio fuel to start. Than also an insulation out of it as well. Will look at doing more as company grows. I also know a way to power a whole warehouse by just the plants it’s self but I need funding to get this started. I’m building the transportation side just so I can gain an income to try and get this started.

Portfolio highlights

• Hoevan — HOEVAN is a holding company focused on bringing together disparate companies with complementary capabilities. We strongly believe in the accretive value created through shared capabilities and unique management experience.Our mission is to support consumers and brands as technologies continuously evolve. Renewable energy and consumer electronictechnologies often evolve with minimal downstream consumer support, protection, or repair services in mind. We focus on streamlined and cost effective products to create better consumer experiences while enhancing brands consumer rallying cry.

Portfolio highlights

• Field Complete — Field service management software built by contractors. Schedule, dispatch, invoice & get paid in one app. Start your 14-day free trial.

Portfolio highlights

• Scripto — Whether you're taping a show in a studio, collaborating on screenplays, or making a video game, Scripto helps you do your best work and save time while you do it.
• Kind Designs — Kind Designs is a trusted 3D Printed seawall contractor in Miami offering custom seawall construction, shoreline protection, erosion control solutions.
• The Athletics — The Athletics franchise is a professional spectator sports organization that operates a Major League Baseball club. The company manages athletic team rosters, player scouting, talent development, and medical staff for its baseball operations. It coordinates live event production, stadium technology, corporate sponsorships, and ticket saleslogistics for professional games. Additionally, the business oversees regional television, radio, and streaming broadcast infrastructure to distribute sports media content.

Portfolio highlights

• Reyets: Social Justice Network — Reyets is the fastest growing social justice network providing civil rights tools, that allow people to know their rights, document and report misconduct, access alternatives to calling the police and connect with community protection networks. We empower the new Civil Rights Movement.
• Skycart — Skycart build delivery drones for shipping goods in 30min or less. Anywhere, anytime.
• Field Complete — Field service management software built by contractors. Schedule, dispatch, invoice & get paid in one app. Start your 14-day free trial.

Portfolio highlights

• Tornado — Digest information from thousands of public filings and your own documents with a versatile AI analyst, plus the reliability of full source attribution.
• Wonder — Introducing a new kind of home dining experience. Currently available in areas of New Jersey.
• Focused Energy — Focused is the leading Laser Fusion company pursuing the most promising path to clean, limitless fusion power... unlocking civilization's next great chapter of growth.

Portfolio highlights

• Blue Origin — Earth, in all its beauty, is just our starting place. Blue Origin is opening the promise of space to all.
• Flourish — Flourish is a Neuro AI company. Based in New York.
• General Intuition — We build a new class of models that can perceive, predict, and act in virtual and physical environments.

Portfolio highlights

• MPOWERD — MPOWERD Luci solar lights. Solar powered, fast charging, LED bright, lightweight & water resistant lights & chargers from $17.95+. Send a Solar Powered Light for Disaster Relief and Humanitarian Aid. Free US Shipping on orders over $60.

Portfolio highlights

• Arcadia — Arcadia is the energy intelligence platform for businesses. We replace fragmented tools and manual workflows with one platform to pay utility bills, buy energy, and advance sustainability.

Portfolio highlights

• VueBox — VueBox places interactive content in rideshare vehicles
• Pristeem — The laundry & dry cleaning services industry has seen no hardware innovation in a long time resulting in 24 hr+ turnarounds, insanely expensive prices, and a complete lack of reliability. Pristēm has built a magical new clothing care experience that's 150x faster, 10x cheaper, and hassle free. Our smart hardware and consumable cleansyour outfit exactly when you need it, not 24 hours later.Our nationwide network of smart hardware products can be accessed through your mobile phone and a monthly subscription. Pristēm provides the best customer experience that's a faster, greener, and more enjoyable alternative to the laundry and dry cleaning services available today.
• Looking Glass Factory — Introducing Looking Glass Portrait, your first personal holographic display. Designed for people, real and imagined. Available for pre-order today.

Portfolio highlights

• Orchata — Te presentamos orchata, tu super en 15 minutos. Te regalamos 100 pesos en tu primer pedido.
• Mosaic — Mosaic is a residential solar lending platform that enables thousands of people to profit from the benefits of clean energy. It is a solar finance company that provides financing for residential solar systems. Mosaic's vision, 100% clean energy for all, embodies the desire to create shared prosperity through clean energy and to help millionsof people invest in themselves, their homes, and the future of the planet.It was founded in 2011 and is based in Oakland, California.
• Wareclouds — Wareclouds puts ecommerce products in their customers hands in a fast and cheap way, by using peoples idle space and time. This people store products and assemble orders in their house, and move packages in their free time.

Portfolio highlights

• Etched — Transformers etched into silicon. By burning the transformer architecture into our chips, we're creating the world's most powerful servers for transformer inference.
• JustPaid — Stay in control of your business with payments, AI-powered automation, benchmarking, contract tracking, opportunity alerts, and more, all in one platform.
• Flow Laboratories — Buildings are getting smarter except water. Current water management methods are painfully manual and lead to over $10B in annual water damage losses. Our first solution automates water data collection and reporting. This not only improves operational efficiency but also dramatically reduces water damage exposures.

Portfolio highlights

• Pranalytica — Pranalytica started operations in February 2000, with the singular focus of supplying world-leading products through world-leading R&D and a thorough understanding of our customers' needs.During the first few years, the company built a leading position in tunable laser spectroscopy-based gas sensing. Notably, Pranalytica was the first toapply the formalism of Receiver Operational Characteristics (ROC curves) to gas sensors, and thus to quantify the probabilities of false negatives and false positives. This analysis has been incorporated into DARPA's "bible" for gas sensors for chemical and biological threats.
• Tank Utility — Propane gas tank monitor device and system with smart phone app. A remote and wireless solution to save money with smart connected fuel deliveries.
• Vector Launch — Vector Launch | New Team | New Mission | New site coming soon

Portfolio highlights

• LOOK OPTIC — Shop Reading Glasses from LOOK OPTIC. Lightweight reading glasses & more of today's latest styles, buy reading glasses from Look Optic online store today!
• BoomPop — Work culture resources, virtual event inspiration, team building ideas, and fresh perspectives on the future work, brought to you by the BoomPop team.
• Jack Archer — Jack Archer is an apparel brand for men. They designed them with magic fabrics that hold their shape, mold around the body, and make it easy to find the right size. They can give the look tired and lazy, and it's not a good look for anyone.

Portfolio highlights

• HyPoint — Next Generations Fuel Cell Systems
• Overtime — Overtime is the leading brand for the next generation of sports fans. As both a publisher and an influencer, we've built the inclusive world of sports we all wish was the norm by giving a platform to our community to be seen AND heard.
• Social Native — Predictive AI platform for creator marketing.

Portfolio highlights

• Koyeb — Koyeb is a developer-friendly serverless platform to deploy apps globally. No-ops, servers, and infrastructure management.
• Radiant — Clean. Portable. Safe. Energy
• Masters — Train mind and body on the Masters app with full workout programs designed and run by the world's best athletes. Join today and start training like a pro.

Portfolio highlights

• Wonder — Introducing a new kind of home dining experience. Currently available in areas of New Jersey.
• Mealplanet — Browse 100+ meal plan brands in the UAE. Compare, customise, and order weekly or monthly plans with free delivery. Start your 2-day trial today.
• Cure Hydration — Cure is a premium, hydrating electrolyte drink mix made with organic coconut water, pink Himalayan salt and no added sugar. Based on the WHO's ORS (Oral Rehydration Solution.)

Portfolio highlights

• Proton.ai — Boost your sales with Proton, the AI-powered growth platform for distributors. Get full customer visibility and never miss a sales opportunity again.
• Racket — Let's make a racket.
• Consensus — Consensus uses AI to extract and summarize scientific insights from peer-reviewed sources. For any question, what's the Consensus?

Portfolio highlights

• Sorare — Global Fantasy Football. Collect limited edition digital collectibles, Manage your team and earn prizes!
• Hoth Intelligence — Hoth Intelligence home page. Space age surgical technology brought down to earth.
• Floating Point Group — Floating Point Group is a trading platform provider offering innovative, industry-leading trade execution and settlement

Portfolio highlights

• TransCrypts — We all have that file box where we throw all our important documents. Our goal at TransCrypts is to make that box digital and have all the documents secured through the blockchain. We currently offer industry leading privacy and security standards on our file storage and sharing platform and have solutions for individuals all the way to enterprises.
• AtomBeam — Atombeam Technologies is a software company building two AI platforms. Neurpac applies machine learning and advanced mathematics to compact and encrypt data in real time, reducing data volume and latency across transport-agnostic deployments. PCM (Persistent Cognitive Machine) is a geometric AI reasoning engine that reasons from mathematicalstructure rather than pattern-matching, enabling private, low-cost AI that runs behind the enterprise firewall.The company serves enterprise, government, and defense customers, with nearly 600 patents filed, eight active U.S. Department of War programs, an active DARPA engagement, and a Cooperative Research and Development Agreement (CRADA) with NIWC Pacific. Partners include DXC, Oracle, Ericsson, HPE, Viasat, and Trilliant.
• 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

• Clever Machine — Clever Machine is a software company based in San Francisco, California, United States.
• Internet Backyard — Internet Backyard is building the financial backbone for the global compute economy. We standardize, measure, and enable trading of compute resources for AI infrastructure.
• FreeWire Technologies — OptiGrid electric vehicle charging solutions are easy-to-deploy and ready for seamless integration at your business or commercial property.

Portfolio highlights

• AnchorUSD — Unlike competing stablecoins, AnchorUSD holds all deposits in US-domiciled bank accounts. Because USDX can always be created for $1 or redeemed for $1, investors can trade with confidence and avoid the volatility of unbacked cryptocurrencies. We undergo regular audits to ensure that the number of USDX in circulation is exactly equal to the numberof dollars in our bank account.
• Tenant Turner — Tenant Turner helps property managers eliminate vacancy.
• Rescue Forensics — Customer service is our #1 priority. Get a premium domain for your website today. Financing available.

Portfolio highlights

• Twigtale — Twigtale is the first company to provide parents with personalized, high-quality, accessible expert advice for every major transition a child undergoes, such as welcoming a new baby, moving, even experiencing death or cancer. The personalized stories are scripted by child development experts, then personalized by parents. The books are engaging forkids and a powerful playbooks for parents. Customers are parents, groups, partners & sponsors.
• HempNFibers — Growing hemp. Making a bio fuel to start. Than also an insulation out of it as well. Will look at doing more as company grows. I also know a way to power a whole warehouse by just the plants it’s self but I need funding to get this started. I’m building the transportation side just so I can gain an income to try and get this started.
• University of The Community/ Indigenous Cultural Arts Museum — UNIVERSITY FOR SELF LEARNING

Portfolio highlights

• HempNFibers — Growing hemp. Making a bio fuel to start. Than also an insulation out of it as well. Will look at doing more as company grows. I also know a way to power a whole warehouse by just the plants it’s self but I need funding to get this started. I’m building the transportation side just so I can gain an income to try and get this started.
• Mesh — Mesh enables safer, easier crypto transfers and payments from 300+ leading exchanges and wallets, all without leaving your platform
• Invisible Universe — Invisible Universe is an internet-first animation studio that develops original character IP on social media and web3 platforms. Its mission is to create the next household name animated franchises faster and more economical than traditional models. We believe the next generation of animated franchises will be born on the internet.

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

• MaintainX — MaintainX helps you track your reactive maintenance, preventive maintenance, and control the daily operations of your business. Get started for Free!
• Rx Redefined — Rx Redefined is a medical logistics platform that allows physicians to extend services to patients who require specific medical products. The company was founded in 2018 by Brandon Boots and Erik Smith and is headquartered in Oakland, California, United States.
• Next Power 360 — NextPower360 offers the most advanced generator in the world for variable input and output applications such as wind power and electric vehicles.

Portfolio highlights

• BlocPower — BlocPower is your one-stop-shop for modern, all-electric heating and cooling. Secure big incentives & save up to 40% on energy bills when upgrading to a sleek, comfortable and extremely efficient heat pump system.
• Paxton — Regulatory Intelligence, with the speed of Generative AI.
• Primer — At Primer, we help organizations make the best use of their investment in data, by using best-in-class machine learning and natural language processing technologies.

Portfolio highlights

• Chaser — Automate invoice reminders, get paid faster and maintain great customer relationships. Our users get paid 16+ days sooner and save 15+ hours a week on A/R.
• Myprosperity — An all-in-one client portal with innovative digital tools to increase practice efficiencies, scale client engagement and grow revenue.
• Ignition — Engage clients, get paid and run your business on autopilot with Ignition. Create online proposals & automate client payments, all from one place. Learn more.

Portfolio highlights

• Mainspring Energy — Flexible onsite generation for data centers, utility, industrial & enterprise applications. Fuel-flexible, fast to deploy, high-efficiency, low NOx power.
• 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.

Portfolio highlights

• Curacel — Curacel creates APIs & tools that enable businesses to embed insurance in digital channels and to administer claims cost-effectively.
• HoyTrabajas — We are a C.Vs information exchange platform for candidates, employers, and recruiters, that get people access to low-skilled jobs in the Latin-American markets, enables recruiters to share job-seekers and job openings in real-time, and supports SMEs in the recruiting of their low-skilled jobs.
• Positive Food Co. — Delicious, fresh food

Portfolio highlights

• Icon — Icon helps brands partner with creators, turn 1 video into 20 videos with AI, and A/B test messaging to find winning ads. We’re backed by Peter Thiel’s Founders Fund, as well as founders & executives of OpenAI, Ramp, Flexport, Pika, & Cognition (Devin).
• Winible — Winible is the first creator monetization platform for cappers to launch a business online, build a community, and sell their picks.
• 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.

Portfolio highlights

• OASIS — All you do is talk. AI does the rest.
• Field Complete — Free software for any field service company looking to improve operations and become more profitable! Get access to free home services management software.
• Movement Labs — Movement Labs is on a mission to create a global community of Move Builders, working together to improve decentralized network user experience.

Portfolio highlights

• GammaTime — Premium Verticals. Anytime. Anywhere.
• HempNFibers — Growing hemp. Making a bio fuel to start. Than also an insulation out of it as well. Will look at doing more as company grows. I also know a way to power a whole warehouse by just the plants it’s self but I need funding to get this started. I’m building the transportation side just so I can gain an income to try and get this started.
• 5D Holdings LLC — Revolutionary investment banking with $15+ billion in capital raised, serving 500+ clients across 14 regions.

Portfolio highlights

• Alosant — Alosant, the leading customer experience platform for real estate, builds connected communities with technology tailored to specific branding and amenities.
• PastureMap — Manage herd rotations effortlessly with PastureMap's web and mobile app, to see information about your ranch anytime, anywhere.
• ASSOS of Switzerland — Visit the Official Store for ASSOS of Switzerland, engineering and designing cycling equipment and accessories for men and women since 1976.

Portfolio highlights

• QD-SOL — QD-SOL uses nanoparticles to produce green hydrogen in half the time.
• Spicewell — Spicewell develops and creates food seasoning products that includes various kinds of micronutrients. It uses modern science to infuse healthy and organic additions to food meals. Spicewell is based in California, USA.
• HempNFibers — Growing hemp. Making a bio fuel to start. Than also an insulation out of it as well. Will look at doing more as company grows. I also know a way to power a whole warehouse by just the plants it’s self but I need funding to get this started. I’m building the transportation side just so I can gain an income to try and get this started.