# Top 50 Energy Startup Investors in United States in May 2026

| Investor | Relevant Deals | Geography | Stage | Focus |
| --- | --- | --- | --- | --- |
| Third Sphere | 40 | United States, Switzerland, Germany | Seed, Pre-Seed, Convertible Note | Software, Real Estate, Transportation |
| Clean Energy Venture Group | 40 | United States, Canada | Series A, Seed | Energy, Renewable Energy, Manufacturing |
| Breakthrough Energy Ventures | 38 | United States, Canada, United Kingdom | Series A, Series B | Energy, Renewable Energy, Manufacturing |
| Congruent Ventures | 30 | United States, Canada, United Kingdom | Series A, Seed, Series B | Software, Energy, Renewable Energy |
| Clean Energy Ventures | 30 | United States, Canada | Series A, Seed, Convertible Note | Energy, Manufacturing, Renewable Energy |
| Khosla Ventures | 23 | United States, India, United Kingdom | Series A, Series B, Seed | Software, Health Care, Artificial Intelligence |
| Evergreen Climate Innovations | 22 | United States | Convertible Note, Seed, Grant | Energy, Manufacturing, Electronics |
| Threshold | 22 | United States, Israel, India | Series B, Series A, Series C | Software, Internet, Mobile |
| DCVC | 22 | United States, Canada, United Kingdom | Seed, Series A, Series B | Software, Artificial Intelligence, Health Care |
| Powerhouse Ventures | 21 | United States, Australia, United Kingdom | Seed, Series A, Pre-Seed | Software, Energy, Solar |
| Houston Angel Network | 21 | United States, Canada, United Kingdom | Seed, Series A | Health Care, Software, Information Technology |
| RockPort Capital | 20 | United States, Canada, Norway | Series C, Series B, Series A | Energy, Manufacturing, Software |
| The Engine | 19 | United States | Seed, Series A, Series B | Biotechnology, Health Care, Manufacturing |
| Energy Impact Partners | 19 | United States, Canada, Germany | Series A, Series B, Series C | Software, Energy, Renewable Energy |
| Lowercarbon Capital | 18 | United States, United Kingdom, France | Seed, Series A | Biotechnology, Renewable Energy, Energy |
| WindSail Capital Group | 18 | United States, Canada, Germany | Debt Financing, Seed | Energy, Software, Renewable Energy |
| Climate Capital | 18 | United States, Canada, Germany | Seed, Pre-Seed, Series A | Sustainability, Manufacturing, Biotechnology |
| Collaborative Fund | 18 | United States, United Kingdom, South Korea | Seed, Series A | Food and Beverage, Health Care, Software |
| My Climate Journey Collective | 17 | United States, United Kingdom, Kenya | Seed, Series A, Series B | Renewable Energy, Energy, Software |
| Trinity Capital | 17 | United States, Canada, France | Debt Financing, Post-IPO Debt | Software, Energy, Health Care |
| Prelude Ventures | 17 | United States, Canada | Series A, Series B, Series C | Software, Energy, Manufacturing |
| Shell Ventures | 17 | United States, United Kingdom, Norway | Series A, Series B | Energy, Renewable Energy, Software |
| Braemar Energy Ventures | 17 | United States, Canada, France | Series B, Series C, Series A | Manufacturing, Energy, Renewable Energy |
| Alumni Ventures | 16 | United States, United Kingdom, Canada | Seed, Series A, Series B | Software, Information Technology, Health Care |
| City Light Capital | 16 | United States | Seed, Series A, Series B | Health Care, Software, Wellness |
| Connecticut Innovations | 15 | United States, Israel, Canada | Series A, Seed | Health Care, Biotechnology, Software |
| Blue Bear Capital | 14 | United States, Canada, Norway | Series A, Seed | Software, SaaS, Information Technology |
| Right Side Capital Management | 14 | United States, Canada, United Kingdom | Seed, Pre-Seed, Convertible Note | Software, SaaS, Health Care |
| ONE WORLD Impact Investments LLC | 14 | United States | Seed, Series A, Series B | Education, Health Care, Software |
| Mercury | 13 | United States, India, United Kingdom | Series A, Seed, Series B | Software, SaaS, Biotechnology |
| The Yield Lab | 13 | United States, Argentina, Brazil | Seed, Series A, Convertible Note | Agriculture, AgTech, Biotechnology |
| Good Growth Capital | 13 | United States, France, Israel | Seed, Convertible Note, Series A | Health Care, Information Technology, Software |
| BoxGroup | 13 | United States, France, Mexico | Seed, Series A, Series B | Software, Health Care, Internet |
| Asymmetry Ventures | 13 | United States, India, United Kingdom | Seed, Pre-Seed, Series A | Software, Health Care, Biotechnology |
| Ecosystem Integrity Fund | 13 | United States, Norway, Rwanda | Series A, Series B | Energy, Renewable Energy, Solar |
| Austin Ventures | 12 | United States, China, Japan | Series B, Series A, Series C | Software, Enterprise Software, Internet |
| Blackhorn Ventures | 12 | United States, Canada, Germany | Seed, Series A, Series B | Software, Information Technology, Artificial Intelligence |
| Liquid 2 Ventures | 12 | United States, Mexico, Canada | Seed, Series A, Pre-Seed | Software, Information Technology, FinTech |
| The Westly Group | 12 | United States, Canada, Germany | Series A, Series B | Software, Artificial Intelligence, Manufacturing |
| Kleiner Perkins | 12 | United States, China, United Kingdom | Series B, Series A, Series C | Software, Health Care, Information Technology |
| New Enterprise Associates | 12 | United States, India, China | Series B, Series A, Series C | Software, Health Care, Biotechnology |
| Massachusetts Clean Energy Center | 12 | United States, Italy, United Kingdom | Grant, Series A, Seed | Energy, Renewable Energy, Software |
| Element 8 | 12 | United States | Series A, Seed, Series B | Renewable Energy, Energy, Solar |
| SaaS Ventures | 12 | United States, Canada, Israel | Seed, Series A, Pre-Seed | Software, Information Technology, SaaS |
| Wireframe Ventures | 12 | United States, United Kingdom | Seed, Series A, Series B | Biotechnology, Software, Energy |
| Energy Foundry | 12 | United States, Canada | Seed, Series A | Energy, Software, Internet of Things |
| Sand Hill Angels | 11 | United States, Canada, Japan | Seed, Series B, Series A | Health Care, Software, Biotechnology |
| Bolt | 11 | United States, Canada | Seed, Pre-Seed, Series A | Software, Health Care, Internet of Things |
| SJF Ventures | 11 | United States | Series A, Series B | Software, Health Care, SaaS |
| Global Founders Capital | 11 | United States, Germany, United Kingdom | Seed, Series A, Pre-Seed | Financial Services, Software, FinTech |

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