8/8/2018 · Notes: *Financing as reported on Crunchbase as of August 8, 2018. ** Revenue is based on four quarterly reported values, reported as of 2017 and converted to US dollars using foreign exchange rates as of August 8, 2018. Company Summaries Gridtential, based in Santa Clara, California, USA, offers a single battery product for high power, medium energy and deep cycling applications.