Company Story
2011 - ESS Tech, Inc. founded by Eric Dresselhuys
2012 - Development of the company's first flow battery technology begins
2014 - First prototype of the Energy Warehouse (EW) system is built
2016 - ESS Tech, Inc. raises $13 million in Series B funding
2018 - Company launches its second-generation EW platform
2020 - ESS Tech, Inc. raises $30 million in Series C funding
2021 - Company goes public with an initial public offering (IPO)