Strategy
MSTR
The GEO Group Inc
GEO
CleanSpark
CLSK
4
Coinbase
COIN
5
Riot Platforms
RIOT
ESS Tech, Inc. is a long-duration energy storage company, which specializes in iron flow battery technology. It develops long duration iron flow batteries for commercial and utility-scale energy storage applications requiring four or more hours of flexible energy capacity predominantly using earth-abundant materials. The company was founded by Julia Song and Craig E. Evans in January 2011 and is headquartered in Wilsonville, OR.