2011
$250M
from 22 investors over 22 rounds
ESS, Inc. raised $250M on October 11, 2021
Investors: Tortoise Capital Advisors, Koch Supply & Trading and Breakthrough Energy Ventures
ESS, Inc. raised $30M on October 28, 2019
Investors: Presidio Partners, PTT Global Chemical Public Company Limited, -, Breakthrough Energy Ventures, Pangaea Ventures and IPM Group
ESS, Inc. raised undisclosed on January 1, 2019
Investors: Sand Hill Angels
ESS, Inc. raised $13M on December 12, 2017
Investors: Pangaea Ventures, Presidio Partners and Sand Hill Angels
ESS, Inc. raised undisclosed on October 12, 2016
Investors: Sand Hill Angels
ESS, Inc. raised $3.2M on October 7, 2015
Investors: Pangaea Ventures, Sand Hill Angels, Portland Seed Fund and Wilson Sonsini Goodrich & Rosati
ESS, Inc. raised undisclosed on March 27, 2014
Investors: Portland Seed Fund
ESS, Inc. raised $494K on December 30, 2013
Investors: NYSERDA
ESS, Inc. raised $23K on October 17, 2012
Investors: NYSERDA
ESS, Inc. raised $289K on November 17, 2011
Investors: NYSERDA