# Top 50 Clean Energy Startup Investors in May 2026

| Investor | Relevant Deals | Geography | Stage | Focus |
| --- | --- | --- | --- | --- |
| Clean Energy Venture Group | 9 | United States, Canada | Series A, Seed | Energy, Renewable Energy, Manufacturing |
| Clean Energy Ventures | 8 | United States, Canada | Series A, Seed, Convertible Note | Energy, Manufacturing, Renewable Energy |
| Acumen | 6 | United States, India, Kenya | Seed, Series A | Financial Services, Health Care, Agriculture |
| Novastar Ventures | 6 | Kenya, Nigeria, United States | Series A, Series B | Agriculture, Internet, Clean Energy |
| Energy Impact Partners | 6 | United States, Canada, Germany | Series A, Series B, Series C | Software, Energy, Renewable Energy |
| Austin Ventures | 5 | United States, China, Japan | Series B, Series A, Series C | Software, Enterprise Software, Internet |
| Khosla Ventures | 5 | United States, India, United Kingdom | Series A, Series B, Seed | Software, Health Care, Biotechnology |
| Third Sphere | 5 | United States, Switzerland, Germany | Seed, Pre-Seed, Convertible Note | Software, Real Estate, Transportation |
| Safar Partners | 5 | United States, China | Seed, Series A | Biotechnology, Manufacturing, Health Care |
| Chrysalix Venture Capital | 5 | United States, Canada, The Netherlands | Series B, Series A | Energy, Manufacturing, CleanTech |
| Amplify Capital | 4 | Canada, United States, India | Seed, Series A, Pre-Seed | Health Care, Education, Artificial Intelligence |
| Anzu Partners | 4 | United States, Canada, Australia | Series A, Series B | Biotechnology, Manufacturing, Software |
| GAIA Impact Fund | 4 | Singapore, France, Uganda | Series A, Seed | Solar, Energy, Renewable Energy |
| Active Impact Investments | 4 | Canada, United States | Seed, Series A, Pre-Seed | Software, SaaS, CleanTech |
| Wonder Ventures | 4 | United States | Seed, Pre-Seed, Series A | Software, Health Care, Internet |
| Energy Foundry | 4 | United States, Canada | Seed, Series A | Energy, Software, Internet of Things |
| Faraday Venture Partners | 4 | Spain, Germany, France | Seed, Series A | E-Commerce, Internet, Health Care |
| CenterPoint Venture Partners | 4 | United States, France | Series C, Series B, Series A | Electronics, Manufacturing, Information Technology |
| Braemar Energy Ventures | 4 | United States, Canada, France | Series B, Series C, Series A | Manufacturing, Energy, Renewable Energy |
| Wayra | 4 | Spain, United Kingdom, United States | Seed, Pre-Seed | Software, Information Technology, SaaS |
| E3 Capital | 4 | Kenya, United States, Ghana | Series A, Seed, Convertible Note | Solar, Energy, Renewable Energy |
| The Engine | 4 | United States | Seed, Series A, Series B | Biotechnology, Health Care, Manufacturing |
| Gimv | 4 | Belgium, United States, France | Series B, Private Equity | Biotechnology, Health Care, Medical |
| Bolt | 3 | United States, Canada | Seed, Pre-Seed, Series A | Software, Health Care, Internet of Things |
| European Commission | 3 | Spain, France, United States | Grant, Seed, Pre-Seed | Software, Biotechnology, Health Care |
| PJC | 3 | United States, Canada | Seed, Series A, Series B | Software, Health Care, Enterprise Software |
| Kapor Capital | 3 | United States, Japan, Kenya | Seed, Series A, Series B | Education, Software, Health Care |
| BoxGroup | 3 | United States, Canada, France | Seed, Series A, Series B | Software, Health Care, Internet |
| Breakthrough Energy Ventures | 3 | United States, Canada, United Kingdom | Series A, Series B | Energy, Renewable Energy, Manufacturing |
| RWE | 3 | United States, Germany, Sweden | Series A, Series B | Renewable Energy, Clean Energy, Energy |
| Global Partnerships | 3 | Kenya, United States | Series A, Seed | Clean Energy, Renewable Energy, Solar |
| AP Ventures | 3 | United States, France, Norway | Seed, Series A | Energy, Renewable Energy, Oil and Gas |
| Robbins Venture Capital | 3 | United States | Seed, Series A | Health Care, CleanTech, Clean Energy |
| High-Tech Grunderfonds | 3 | Germany, Switzerland, United States | Seed, Series A | Software, Information Technology, Biotechnology |
| 468 Capital | 3 | Germany, United States, United Kingdom | Seed, Series A, Pre-Seed | Software, Artificial Intelligence, Information Technology |
| BDC Capital Cleantech Practice | 3 | Canada | Series A, Series B | Manufacturing, CleanTech, Oil and Gas |
| Demeter Partners | 3 | France, Germany, United States | Series A, Private Equity | Manufacturing, Energy, Electronics |
| American Family Insurance Institute for Corporate and Social Impact | 3 | United States, The Netherlands | Seed, Series A, Series B | Software, Health Care, Education |
| eCAPITAL ENTREPRENEURIAL PARTNERS | 3 | Germany, United States, Italy | Series A, Series B | Information Technology, Software, Manufacturing |
| Milkbox Partners | 3 | United States, Canada, Germany | Series A, Seed | Machine Learning, Software, Information Technology |
| Hess Corporation | 3 | United States | Series A | CleanTech, GreenTech, Clean Energy |
| Soma Capital | 3 | United States, India, Mexico | Seed, Pre-Seed, Series A | Software, FinTech, Financial Services |
| Artesian Clean Energy Seed Fund | 3 | Australia, United States | Seed, Pre-Seed, Series A | Renewable Energy, Clean Energy, Energy |
| InnovationQuarter | 3 | The Netherlands, New Zealand | Seed, Series A | Software, Information Technology, Health Care |
| Starlight Ventures | 3 | United States, Finland, Spain | Seed, Series A | Biotechnology, Energy, Health Care |
| Jericho Energy Ventures | 3 | United States | Series A | CleanTech, GreenTech, Clean Energy |
| Kepple Africa Ventures | 3 | Nigeria, Kenya, Egypt | Seed, Pre-Seed | Financial Services, FinTech, Software |
| SunFunder | 3 | The Netherlands, Kenya, Mauritius | Debt Financing, Series C | Solar, Energy, Renewable Energy |
| Eni Next | 3 | United States, Italy, Canada | Series A, Series B, Seed | Energy, Renewable Energy, Environmental Engineering |
| Kleiner Perkins | 3 | United States, China, United Kingdom | Series B, Series A, Series C | Software, Health Care, Information Technology |

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