# Top 50 Sustainability Startup Investors in United States in June 2026

| Investor | Relevant Deals | Geography | Stage | Focus |
| --- | --- | --- | --- | --- |
| Breakthrough Energy Ventures | 47 | United States, Canada, France | Series A, Series B | Energy, Renewable Energy, Manufacturing |
| Alumni Ventures | 45 | United States, United Kingdom, Canada | Seed, Series A, Series B | Software, Artificial Intelligence, Information Technology |
| SOSV | 39 | United States, India, United Kingdom | Seed, Convertible Note, Pre-Seed | Biotechnology, Health Care, Software |
| Third Sphere | 36 | United States, United Kingdom, Israel | Seed, Pre-Seed, Convertible Note | Software, Real Estate, Transportation |
| Clean Energy Venture Group | 35 | United States, Canada | Seed, Series A | Energy, Renewable Energy, Manufacturing |
| Congruent Ventures | 33 | United States, Canada, United Kingdom | Seed, Series A, Series B | Software, Energy, Robotics |
| Collaborative Fund | 32 | United States, United Kingdom, South Korea | Seed, Series A | Software, Food and Beverage, Health Care |
| Khosla Ventures | 31 | United States, India, United Kingdom | Series A, Series B, Seed | Software, Artificial Intelligence, Health Care |
| Clean Energy Ventures | 29 | United States, Canada, Israel | Seed, Series A | Manufacturing, Energy, Renewable Energy |
| Lowercarbon Capital | 28 | United States, United Kingdom, France | Seed, Series A, Series B | Renewable Energy, Energy, Biotechnology |
| MCJ | 27 | United States, United Kingdom, Kenya | Seed, Series A, Series B | Renewable Energy, Energy, Software |
| DCVC | 26 | United States, Canada, United Kingdom | Seed, Series A, Series B | Software, Artificial Intelligence, Machine Learning |
| Climate Capital | 25 | United States, Canada, Germany | Seed, Pre-Seed, Series A | Energy, Manufacturing, Renewable Energy |
| Energy Impact Partners | 23 | United States, Canada, United Kingdom | Series A, Series B, Series C | Software, Energy, Renewable Energy |
| Grantham Foundation | 23 | United States, United Kingdom, Canada | Seed, Series A | Energy, Biotechnology, Environmental Consulting |
| Powerhouse Ventures | 22 | United States, Australia, United Kingdom | Seed, Series A, Pre-Seed | Software, Energy, Solar |
| Shell Ventures | 21 | United States, United Kingdom, India | Series A, Series B | Energy, Renewable Energy, Software |
| The Engine | 20 | United States | Seed, Series A, Series B | Biotechnology, Health Care, Manufacturing |
| Prelude Ventures | 20 | United States, Canada | Series A, Series B, Series C | Software, Energy, Renewable Energy |
| Evergreen Climate Innovations | 19 | United States | Convertible Note, Seed, Grant | Energy, Manufacturing, Software |
| Chevron Technology Ventures | 18 | United States, United Kingdom, Canada | Series A, Series B | Energy, Software, Manufacturing |
| Andreessen Horowitz | 17 | United States, United Kingdom, Brazil | Series A, Seed, Series B | Software, Information Technology, Artificial Intelligence |
| Good Growth Capital | 17 | United States, France, Israel | Seed, Series A, Convertible Note | Health Care, Biotechnology, Software |
| Right Side Capital Management | 17 | United States, Canada, United Kingdom | Seed, Pre-Seed, Convertible Note | Software, SaaS, Health Care |
| Ecosystem Integrity Fund | 17 | United States, India, Brazil | Series A, Series B | Energy, Renewable Energy, Software |
| New York Ventures | 17 | United States, Canada, Israel | Seed, Series A, Series B | Health Care, Biotechnology, Software |
| Massachusetts Clean Energy Center | 16 | United States, Italy, United Kingdom | Grant, Seed, Series A | Energy, Renewable Energy, Manufacturing |
| Blue Bear Capital | 16 | United States, Germany, The Netherlands | Series A, Seed | Software, Information Technology, Artificial Intelligence |
| Connecticut Innovations | 16 | United States, Israel, Canada | Seed, Series A | Health Care, Biotechnology, Software |
| Climate Pledge Fund | 16 | United States, Canada, India | Series A, Series B | Energy, CleanTech, Renewable Energy |
| BoxGroup | 15 | United States, Mexico, Canada | Seed, Series A, Series B | Software, Health Care, Artificial Intelligence |
| Gaingels | 15 | United States, Canada, Mexico | Seed, Series A, Series B | Software, Health Care, Artificial Intelligence |
| First Round Capital | 15 | United States, Canada, India | Seed, Series A, Series B | Software, Information Technology, Artificial Intelligence |
| WindSail Capital Group | 15 | United States, Canada, Germany | Debt Financing, Seed | Energy, Software, Manufacturing |
| Liquid 2 Ventures | 15 | United States, Mexico, Canada | Seed, Series A, Pre-Seed | Software, Artificial Intelligence, Information Technology |
| At One Ventures | 14 | United States, United Kingdom, Canada | Seed, Series A, Series B | Energy, Manufacturing, Agriculture |
| Foothill Ventures | 14 | United States, China, Canada | Seed, Series A | Artificial Intelligence, Software, Biotechnology |
| General Catalyst | 14 | United States, United Kingdom, India | Series A, Seed, Series B | Software, Artificial Intelligence, Health Care |
| City Light Capital | 14 | United States | Seed, Series A, Series B | Health Care, Software, Wellness |
| Overture Ventures | 14 | United States, Canada | Seed, Series A, Series B | Manufacturing, Software, Renewable Energy |
| ONE WORLD Impact Investments LLC | 14 | United States | Seed, Series A, Series B | Education, Health Care, Software |
| Starlight Ventures | 13 | United States, Finland, Italy | Seed, Series A | Biotechnology, Energy, Health Care |
| Evok Innovations | 13 | Canada, United States, Israel | Series A, Seed, Series B | Energy, Chemical, Oil and Gas |
| RockPort Capital | 13 | United States, Canada, Norway | Series C, Series B, Series A | Energy, Manufacturing, Software |
| Threshold | 13 | United States, India, Canada | Series B, Series A, Series C | Software, Internet, Mobile |
| Wireframe Ventures | 13 | United States, United Kingdom | Seed, Series A, Pre-Seed | Biotechnology, Software, Energy |
| Halogen Ventures | 13 | United States | Seed, Convertible Note | E-Commerce, Internet, Fashion |
| E8 Angels | 12 | United States | Series A, Seed, Series B | Renewable Energy, Energy, Solar |
| Contour Venture Partners | 12 | United States, United Kingdom, Canada | Series A, Seed, Series B | Software, SaaS, Enterprise Software |
| Houston Angel Network | 12 | United States, Canada, France | Seed, Series A | Health Care, Software, Medical |

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