Top 10 CleanTech/Clean Energy Capital Raises and Investors in the U.S. – July 1st – 15th, 2025
Several interesting transactions closed in the CleanTech/Clean Energy sector over the past two weeks. If you would like more info on these deals or would like to discuss the capital raising market for your company, please contact me.
PIPE
- Ensurge Micropower ASA, ultrathin, flexible, and safe energy storage solutions that are provided for wearable devices, connected sensors, and beyond, received NOK 50 million of development capital.
- Terrestrial Energy, an industry-leading technology company that is committed to delivering reliable, emission-free, and cost-competitive nuclear energy with a transformative advanced reactor, the Integral Molten Salt Reactor, received $25.80 million of development capital.
Merger/Acquisition
- Li-ion Tamer, a lithium-ion battery monitoring system that is designed to detect emissions from faulty batteries and help prevent thermal runaway, acquired by Honeywell.
- Paine’S, residential, commercial, and industrial recycling and rubbish removal services that are intended to serve communities across Greater Hartford and Northwestern Connecticut, acquired by Latella Leasing.
Later Stage VC
- Geophysical Technology, an autonomous seismic recording technology that is designed to acquire seismic data, raised $1.11 million of venture funding.
- LifeAire Systems, an air purification technology that is designed to control and remove all airborne pathogens, raised $2.30 million of venture funding in the form of convertible debt.
Early Stage VC
- Rubi, materials and biochemicals from carbon dioxide that are designed with a focus on textile materials, raised venture funding from CMPC Ventures.
- Strobe Power, an AI-powered software that is designed to transform real estate into autonomous power plants, raised venture funding from Stellation Capital.
Seed Round
- HyC Light, a light-driven chemical conversion system that is intended to produce clean hydrogen and carbon nanotubes, raised seed funding from The Accelerator Centre.
- JWC Gburg, a fertilizer manufacturing company that is intended to support agricultural productivity through locally produced inputs, raised $9.15 million of seed funding.
#castleplacement #capitalraising #privateequity #venturecapital #investment #cleantechnology #cleanenergy #cleantech
Tina Vital
Managing Director
Extensive career in engineering and investment banking focused on debt and equity transactions for infrastructure, energy, metals & mining, cleantech/waste management and other technology-based industries. Began engineering career with Exxon. Began Wall Street career at Citibank. Frequent guest on global financial news shows and the author of numerous engineering and energy finance publications. Previously served as Secretary-Treasurer and Executive Board Member for the United States Association of Energy Economics (USAEE); and Advisory Board Member for the International Pittsburgh Coal Conference. MBA from Carnegie Mellon University. ABD-PhD Chemical Engineering from the University of Massachusetts at Amherst. MS in Chemical Engineering from Lehigh University. BS in Biochemistry, Chemistry and Biology from the University of Pittsburgh. FINRA Series 7, 63 and 79 licensed.
- tvital@castleplacement.com
- (917) 432-8474
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.











