General InformationESS Inc., founded in 2011 and headquartered in Oregon, is an energy storage company with approximately 100-150 employees focused on commercializing iron flow battery technology.
Funding & FinancialsThe company has raised over $90 million across multiple funding rounds, with Series C funding completed in 2022 led by investors including Evoke Capital and others focused on climate tech.
Leadership & TeamCEO Eric Dresselhuys leads the company, bringing deep expertise in electrochemistry and energy storage commercialization from previous roles in the sector.
Recent ActivityESS Inc. has been progressing toward commercial deployment of its first utility-scale iron flow battery systems, with pilot installations and partnerships with regional utilities to validate long-duration storage capabilities.