ESS Inc
Oregon-based manufacturer of long-duration iron flow batteries using iron, salt, and water for 8-100+ hour utility-scale energy storage.
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5 companies
Energy Vault
Developer of gravity-based long-duration energy storage and hybrid battery systems, with deployments in China and the U.S. and a $300M strategic inve…
HighENGIE Renewables
One of the world's largest renewable energy developers, operating 50 GW+ of wind, solar, and hydro assets with a growing green hydrogen portfolio.
HighForm Energy
U.S. startup developing iron-air batteries capable of 100+ hours of storage, enabling multi-day grid backup for utilities at low cost.
HighGE Vernova
Energy technology company spun off from GE in 2024, supplying wind turbines, grid solutions, and electrification technology to 100+ countries.
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