Top 10 CleanTech/Clean Energy Capital Raises and Investors in the U.S. – January 1st to 31st, 2026
Several interesting transactions closed in the CleanTech/Clean Energy sector over the past month. If you would like to discuss the capital raising market for your company, please contact me.
PE Growth/Expansion
- ReElement Technologies, separated and purified rare earth and critical elements for the electrification industry supply chain, received $200 million of development capital from Transition Equity Partners.
- Terra Energy, subscription-based solar energy services that make renewable energy an accessible resource for everyone, received $105 million of development capital from Azora Capital and ArcPe.
Merger/Acquisition
- BKV Energy, retail electric services for residential energy consumption, was acquired by BKV for $115.1 million.
- GreenFi, climate-focused digital banking platform for consumers seeking checking, savings, and rewards products aligned with environmental goals, was acquired by Coastal Financial.
Later Stage VC
- Fleetzero, battery-electric cargo ships that affordably decarbonize ocean freight, raised $43 million of Series A venture funding in a deal led by Obvious Ventures.
- Natural Fiber Welding, plant-based materials that reduce the reliance of the soft-goods material industry on petroleum-based materials, raised $7 million of venture funding from Provest Equity and CTW Venture Partners.
Early Stage VC
- Jetson, heat pump system that accelerates the adoption of clean home heating technology, raised $50 million of Series A venture funding in a deal led by Eclipse Ventures.
- Vaulted Deep, dual waste management platform for geologic sequestration of organic wastes, raised $7.7 million of venture funding in the form of convertible debt from Plug and Play Tech Center.
Seed Round
- Reservoir Power, low-carbon renewable energy grid that supports the transition toward a reliable and sustainable power grid, raised $4.11 million of Seed funding from investors, putting the company’s pre-money valuation at $22.89 million.
- Verde Technologies, lightweight and flexible solar panels that reduce the costs of solar energy deployment, raised $3.00 million of Seed 1, Seed 2 and Seed 3 funding from investors, putting the company’s pre-money valuation at $8.50 million.
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Tina Vital
Managing Director
Please contact me if you have any questions or would like to discuss your capital raise:
Email: tvital@castleplacement.com
(C) (917) 432-8474
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Sources: Information on this page was derived from a variety of sources including Bloomberg, Company Websites, Crunchbase, PitchBook and other news outlets. Castle Placement® does not warrant or guarantee this information, nor makes any representations as to the accuracy of the information. For more Risks, see CPGO Risks and Disclaimers.
