Caban Systems is a Burlingame, California-based renewable energy and energy storage company developing modular energy storage platforms for critical infrastructure power needs.

Amprius is a Fremont, California-based nanotechnology company developing silicon nanowires for lithium-ion batteries and founded by Mark Platshon and Yi Cui.

LightSail Energy was a Berkeley, California based company developing above-ground compressed air energy storage (CAES) systems

Northvolt develops sustainable lithium-ion batteries in conjunction with R&D, industrialization, and recycling to support clean energy.

Zeta Energy is a Houston, Texas-based company that develops lithium-sulfur batteries.

Coreshell Technologies is engineering liquid-deposited nanolayer coatings for Lithium Ion Batteries.

A technology manufacturing company making Li-Metal materials, cells, and packs for drones, consumer electronics and automotive applications.

WiBotic is a technology company specializing in wireless charging and power optimization solutions.

Nikola Motor Company is a Phoenix, Arizona-based automotive company founded in 2014 by Trevor Milton.

ESS Inc. is a Wilsonville, Oregon-based developer and provider of long-duration energy storage solutions, including flow-batteries, for utility, microgrid, and off-grid applications.

ZEG Power is a developer of modular energy generation technology, including hydrogen fuel production with carbon capture and storage systems to produce clean hydrogen with no emissions.

Ather Energy is a Bangalore, India-based manufacturer of intelligent electric mopeds and public charging infrastructure. Ather Energy operates as a manufacturer of electric scooters.

Stem is a Millbrae, California-based developer of solutions for energy consumption through a combination of data, predictive analytics, and energy storage to reduce energy costs.

Sila Nanotechnologies is an Alameda, California-based company engineered materials company focused on improving energy storage.

FreeWire Technologies is a San Leandro, California-based provider of battery systems for electric vehicle charging and mobile distributed power.

Peak Power is the developer of an AI-based energy optimization software designed to serve building owners, project developers, and utilities.

Autogrid Systems is a Redwood City, California-based developer of solutions for organization of energy data, energy analytics, and real-time predictions for actionable energy data.

GBatteries is a sustainable energy company.

A nuclear reactor design company developing Waste-Annihilating Molten Salt Reactor. The company ceased operations in September 2018.

Skeleton Technologies is a Tallinn-based energy storage company developing energy storage technology and solutions.

Wildcat Discovery Technologies is a San Diego-based technology company with a focus on the development of advanced materials for rechargeable and primary batteries

Form Energy develops and commercializes a low-cost battery system that can store wind and solar energy for a long duration.

BrightSource Energy is an Oakland, California-based company founded in 2006 by Arnold Goldman.

Addionics is creating next-generation batteries through intelligent 3D battery architecture and engineering.

Sonnen GmbH is a Wildpoldsried-based developer of management solutions for lithium based energy storage.

Primus Power is an Hayward, California-based zinc bromine flow battery manufacturer.

Bloom Energy is a San Jose, California-based hydrogen fuel cell company offering on-site power generation systems.

Silatronix is a Madison, Wisconsin-based company founded in 2007 by Robert Hamers and Robert West.

Involt is a company developing supercapacitor-based solutions for batteries founded in 2012.

A company developing technology to increase the energy density of lithium-ion batteries

Enapter is a company that designs and manufactures hydrogen generators.

Highview Power is a company that provides CRYOBattery which delivers a clean and long-duration energy storage to enable a 100% renewable energy future.

Enevate Corporation is a developer of energy storage technology for lithium-ion battery ecosystems.

Borrego Solar Systems is a El Cajon, California-based developer and operator of commercial, residential, and public sector grid connected solar electric systems.

Arizona Public Service is an electric utility company in Arizona founded in 1886.

H3 Dynamics is a Toulouse-based company focused on the development of hydrogen technology and telerobotics drones.

Phylion Battery is an industrial company that specializes in manufacturing and selling of power Lithium-ion batteries, research and development.

Energy storage and mobile power generation solutions provider.

Spear Power Systems designs and manufactures advanced lithium-ion energy storage systems for aerospace, defense, industrial, and marine applications.

ElectrIQ Power is a San Leandro, California-based provider of battery storage solutions for homes and small businesses.

Brill Power Limited is a company that develops intelligent battery management systems and technology to enhance the lifetime, performance and safety of lithium-ion battery packs.

Zēlos Energy Ltd is a San Leandro, California-based energy storage company.

Tigo Energy builds hardware and software intelligence into solar energy installations, making them more efficient, more manageable, and safer.

Kraftblock provides an eco-friendly, modular thermal energy storage system.

Brammo was an electric motorcycle developer.

Nexeon is a silicon anodes for next generation lithium-ion batteries founded in 2004 by Paul Atherton.

Developer of an energy storage technology designed to fight climate change using carbon dioxide (CO2) to accelerate the transition to renewable energy. The company's technology is based on a thermodynamic transformation of CO2 a closed-loop process to store energy and make renewable power dispatchable.

Solid Power is an industry developer of all-solid-state batteries.

Nostromo is a company founded in 2017.

Prieto Battery, Inc. is a company that focuses on commercializing patented Lithium-ion battery technology.

Aquion Energy is a company that manufactures sodium ion batteries and energy storage systems.

Vorbeck Materials is a Jessup, Maryland-based company founded by John S. Lettow.

Voltaiq develops a software solution that is able to predict the performance of batteries and battery-powered systems.

Dreamweaver International is a company that produces lithium-ion battery separators, founded by Brian Morin.

Clearway Energy owns and operates more than 8 gigawatts of renewable and conventional energy assets across the country.

Ionomr is a developer and manufacturer of hydrogen technologies including fuel cells, hydrogen fuel, and infrastructure and storage.

EcoFlow is a mobile power company that is reinventing the way the world accesses energy.

ViZn Energy Systems is a company founded in 2009 by Craig Wilkins.

6K is a North Andover, Massachusetts and New Cumberland, West Virginia-based custom fabrication and additive manufacturing company.

Malta Inc is a company storing renewable energy in molten salt founded by X.

Elegus Technologies is an Ann Arbor, Michigan-based company founded by Long Qian, Siuon Tung, Nicholas Kotov and John Hennessy.

EnerG2 is a manufacturer of energy storage devices founded in 2003 by Chris Wheaton and Rick Luebbe.

Invinity Energy Systems is a vanadium flow battery company.

Boston-Power is a company that develops and manufactures next-generation lithium-ion battery cells.

Lilac Solutions is a company founded in 2016 by David Snydacker.

Sakti3 is a company that operates as a leader in the solid state battery technology.

Redwood Materials is a battery recycling company founded in 2017.

EST-Floattech BV is a Netherlands-based Energy Storage Solutions company.

Geli is a San Francisco-based company founded by Ryan Wartena and Crispell Wagner.