Top 10 Early Stage Investors in CleanTech
| Rank | Investor Name |
|---|---|
| 1 | MCJ |
| 2 | Climate Capital |
| 3 | Andreessen Horowitz - a16z |
| 4 | ImpactAssets |
| 5 | Energy Impact Partners |
| 6 | Active Impact Investments |
| 7 | Dorm Room Fund |
| 8 | Craig Shapiro |
| 9 | Engine Ventures |
| 10 | Breakthrough Energy Ventures |
Early stage activity in this category is led by institutional venture franchises and category specialists. Decarbonization mandates and industrial climate technology drive the category, with impact capital prominent at early stages. For a company raising a priced early round, this list identifies the firms with the most active recent presence in the category.
The CapitalDart directory identifies the right person to contact at each of these firms, with their individual investment criteria.
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Rankings cover January 2025 to July 2026 investment activity in US and Canada companies. Seed and early-stage rankings measure deal participation, not suitability for every raise.