| Vendor | Technology Category | Technology Type | Status | ESTD Link |
|---|
| 1414 Degrees (website) | Thermal | Phase Change Material | active | Published |
| 247 Solar (website) | Thermal | Ceramic | active | Published |
| Accelera (website) | Chemical | Hydrogen | active | Published |
| Active Power (website) | Mechanical | Flywheel | active | |
| Adena Power (website) | Electrochemical | Sodium Ion | active | Published |
| Advance Rail Energy Storage (ARES) (website) | Mechanical | Gravity | active | Published |
| Advanced Battery Concepts (website) | Electrochemical | Lead Acid | active | |
| Aesir Technologies (website) | Electrochemical | Nickel Zinc | active | |
| Aestus Energy Storage (website) | Thermal | Ceramic | active | Published |
| Airlight Energy | Mechanical | Compressed Air | dormant | |
| Airthium (website) | Thermal | Heat Pump | active | Published |
| ALACAES (website) | Mechanical | Compressed Air | dormant | |
| Alstom | Mechanical | Compressed Air | dormant | |
| Altiro (website) | Thermochemical | Metal Oxide | active | |
| Alumina Energy | Thermal | Ceramic | active | Published |
| Amber Kinetics (website) | Mechanical | Flywheel | | Published |
| Ambri (website) | Electrochemical | Liquid Metal | active | Published |
| America Clean Energy Group (website) | Electrical | Supercapacitor | active | |
| Amogy | Chemical | Ammonia Production | | |
| Amplified Pumped Storage (AMPS) (website) | Mechanical | Pumped Storage Hydro | active | |
| Ansaldo Energia (website) | Chemical | Hydrogen | | |
| Antora Energy (website) | Thermal | Graphite | active | Published |
| Apex Compressed Air | Mechanical | Compressed Air | | Published |
| Aqua-Cell Energy (website) | Electrochemical | Flow Battery | active | |
| Aquanamic | Mechanical | Pumped Storage Hydro | active | Published |
| Augwind AirBattery (website) | Mechanical | Compressed Air | active | Published |
| Avanti (website) | Electrochemical | Liquid Metal | active | |
| Azelio | Thermal | Aluminum Alloy | dormant | Published |
| Basquevolt (website) | Electrochemical | Lithium Ion | active | |
| Batteryloop (website) | Electrochemical | Lithium Ion | active | |
| Beacon | Mechanical | Flywheel | | Published |
| Bechtel (website) | | | | |
| BgtL, Inc. | Thermal | Phase Change Material | | Published |
| Bloom Energy (website) | Chemical | Hydrogen | | |
| BMW | Chemical | Hydrogen | | |
| BNE | Mechanical | Flywheel | | |
| Brayton Energy (website) | Thermal | Pumped Thermal | active | |
| Breeze (website) | Mechanical | Compressed Air | active | Published |
| Brenmiller Energy (website) | Thermal | Solid Materials | active | Published |
| Bucky Battery (website) | Thermochemical | metal hydride | | |
| BuildToZero (website) | Thermal | Phase Change Material | | |
| Cache Energy (website) | Thermochemical | Salt Hydrates | active | Published |
| Cadenza Innovation, Inc. (website) | Electrochemical | Lithium Ion | active | Published |
| Caldera (website) | Thermal | Solid Materials | active | |
| Calectra (website) | Thermal | Solid Materials | active | |
| Calmac (website) | Thermal | Ice Creation | active | |
| Calnetix Technologies (website) | Mechanical | Flywheel | | |
| Capattery (website) | Electrochemical | Graphene | active | |
| CapyBara Energy (website) | Electrical | Supercapacitor | active | |
| CarbeniumTec (website) | Electrochemical | Flow | active | Published |
| Cavern Energy (website) | Mechanical | Pumped Storage Hydro | active | |
| CCT Energy Storage | Thermal | Phase Change Material | | |
| Cellcius (website) | Thermochemical | Potassium Carbonate | active | |
| Ceres Power | Chemical | Hydrogen | | |
| Cheesecake Energy (website) | Mechanical | Compressed Air | | |
| Chiyoda Corp (website) | Chemical | Hydrogen | | |
| CleanTech Geomechanics (WellStore) (website) | Mechanical | Compressed Air | | |
| CMBlu (website) | Electrochemical | Flow | active | Published |
| Corre Energy (website) | Mechanical | Compressed Air | | |
| Coulomb Technology (website) | Electrochemical | Zinc-based | active | |
| Cryogel | Thermal | Ice Creation | | |
| Cryostone (website) | Mechainical | Liquid Air | active | |
| CryoStore Power (website) | Mechanical | Liquid Air | active | |
| E2S Power (website) | Thermal | Phase Change Material | active | Published |
| Earthbridge Energy (website) | Thermal | Geothermal | active | |
| EarthEn (website) | Thermal | Molten Salt | active | Published |
| Echogen ETES (website) | Thermal | Solid materials | active | Published |
| Eco-Tech Ceram (website) | Thermal | Ceramic | | |
| Electrified Thermal Solutions (JouleHive) (website) | Thermal | Solid Materials | active | Published |
| Element 16 | Thermal | Molten Sulfur | active | Published |
| Elyte (website) | Chemical | Hydrogen | | |
| Emtel (website) | Electrical | Supercapacitor | | |
| Energy Bank (website) | Mechanical | Gravity | active | |
| Energy Dome (website) | Thermal | Compressed Air | active | Published |
| Energy Internet Corporation (website) | Mechanical | Compressed Air | active | |
| Energy Vault (website) | Mechanical | Gravity | active | Published |
| EnergyNest (website) | Thermal | Solid Materials | active | Published |
| EnerVenue (website) | Electrochemical | Metal-Hydrogen | active | Published |
| Enlighten Innovations (website) | Electrochemical | Sodium Sulfur | active | Published |
| Eos Energy Enterprises, Inc. (website) | Electrochemical | Zinc-based | active | Published |
| ErgoSup (website) | Chemical | Hydrogen | | |
| ESS, Inc. (website) | Electrochemical | Flow | active | Published |
| ETI | Thermal | Solid Materials | dormant | |
| Evyon (website) | Electrochemical | Lithium Ion | active | |
| Exowatt (website) | Thermal | | active | |
| Expansion Energy (website) | Mechanical | Liquid Air | active | Published |
| Fervo Energy (website) | Thermal | Geothermal | active | |
| FeX Energy (website) | Thermal | Metal Oxide | active | |
| FLASC (website) | Mechanical | Pumped Storage Hydro | | |
| Form Energy (website) | Electrochemical | Metal-Air | active | Published |
| Fourth Power (website) | Thermal | Molten Tin | active | Published |
| FuelX Innovation | Chemical | Hydrogen | | |
| FZSoNick | Electrochemical | Sodium Nickel | active | |
| GCX Compressed Air | Mechanical | Compressed Air | dormant | Published |
| Gelion (website) | Electrochemical | Zinc-based | active | Published |
| GKN Hydrogen (website) | Chemical | Hydrogen | active | |
| Gravient (website) | Mechanical | Gravity | active | |
| Gravitricity (website) | Mechanical | Gravity | active | Published |
| Gravity Power (website) | Mechanical | Gravity | | Published |
| Green Gravity (website) | Mechanical | Gravity | | |
| H2Go Power (website) | Chemical | Hydrogen | | |
| HeatVentors (website) | Thermal | Phase Change Material | | |
| Heindl Energy - Gravity Storage (website) | Mechanical | Gravity | | |
| Helix Power | Mechanical | Flywheel | | Published |
| Highview Power | Mechanical | Liquid Air | active | Published |
| Hitec Salt | Thermal | Molten Salt | | |
| Holtec Green Boiler (website) | Thermal | Molten Salt | | |
| Humpback Hydro (website) | Mechanical | Pumped Storage Hydro | active | |
| Hydrostor | Mechanical | Compressed Air | active | Published |
| Hyme Energy (website) | Thermal | Molten Salt | active | |
| Hyperlight Energy | Thermal | Geothermal | dormant | |
| Ice Energy | Thermal | Ice Creation | dormant | |
| Industrial Power Response (website) | Mechanical | Flywheel | | |
| Invinity (website) | Electrochemical | Flow | active | |
| ION Storage Systems (website) | Electrochemical | Lithium Solid State | | |
| Isentropic Pumped Heat | Thermal | Solid Materials | dormant | Published |
| ITM Power | Chemical | Hydrogen | | Published |
| IUPUI | Chemical | Hydrogen | | |
| Johnson Energy Storage (website) | Electrochemical | Lithium Solid State | | |
| Karman Underwater Spheres | Mechanical | Gravity | dormant | Published |
| Kemiwatt (website) | Electrochemical | Flow | active | |
| Kinetic Traction Systems | Mechanical | Flywheel | | |
| KineticCore Solutions (website) | Mechanical | Flywheel | active | |
| KraftBlock (website) | Thermal | Solid materials | | |
| Kyoto Group (website) | Thermal | Molten Salt | active | |
| Largo (website) | Electrochemical | Flow | active | |
| LAVO (website) | Electrochemical | Lithium Ion | active | |
| Lehigh Thermal Battery | Thermal | Solid materials | | Published |
| Lift Energy Storage Technology (LEST) - IIASA (website) | Mechanical | Gravity | | |
| Lift Renewable Energy | Mechanical | Gravity | | |
| LightSail Energy | Mechanical | Compressed Air | dormant | Published |
| Lina Energy (website) | Electrochemical | Lithium Ion | active | |
| Lockheed Martin (website) | Electrochemical | Flow | active | Published |
| Lumenion GmbH | Thermal | Solid materials | | Published |
| Magaldi | Thermal | Solid materials | active | Published |
| Magnum Development | Mechanical | Compressed Air | | |
| Malta | Thermal | Molten Salt | active | Published |
| MGA Thermal | Thermal | Phase Change Material | | Published |
| Michaels Energy (website) | Thermal | Phase Change Material | active | |
| Mitsubishi Power (website) | Chemical | Hydrogen | active | |
| Molten Salt Thermal | Thermal | Molten Salt | | Published |
| MOST - Chalmers U | Chemical | fulvalene diruthenium | | |
| NADINE (website) | Thermal | Molten Salt | | |
| National Grid (UK) | Chemical | Hydrogen | | |
| Natron (website) | Electrochemical | Sodium Ion | active | |
| Nel Hydrogen (website) | Chemical | Hydrogen | | |
| NerG Solutions (website) | Mechanical | Pumped Storage Hydro | active | |
| NETenergy (website) | Thermal | Phase change material | | |
| NGK (website) | Electrochemical | Sodium Sulfur | active | Published |
| Noon Energy | Chemical | Carbon-oxygen battery | active | |
| Northvolt (website) | Electrochemical | Lithium Ion | active | |
| Nostromo Energy (website) | Thermal | Ice Creation | | |
| Nuvation Energy (website) | Electrochemical | Lithium Ion | active | Published |
| Oceangrazer (website) | Mechanical | Pumped Storage Hydro | active | |
| OceanHydro Omni (website) | Mechanical | Gravity | | |
| Peak Energy (website) | Electrochemical | Sodium Ion | active | |
| Phelas (website) | Mechanical | Liquid Air | | |
| Phinergy (website) | Electrochemical | Metal-Air | active | Published |
| PHOS global (website) | Mechanical | Flywheel | | Published |
| Photon Vault (website) | Thermal | Pumped Heat | active | |
| Piller (website) | Mechanical | Flywheel | | |
| Pintail Power Liquid Air (website) | Thermal | Cryogenic | active | Published |
| Pintail Power Liquid Salt (website) | Thermal | Molten Salt | active | Published |
| Plug Power (website) | Chemical | Hydrogen | | |
| Polar Night Energy (website) | Thermal | Solid Materials | active | Published |
| Premier Resource Management | Thermal | Geothermal | active | |
| Qnetic (website) | Mechanical | Flywheel | active | |
| Quantumscape (website) | Electrochemical | Lithium Ion | active | |
| Quidnet Energy | Mechanical | Pumped Storage Hydro | active | Published |
| RayGen (website) | Thermal | Pumped Thermal | active | Published |
| RCAM Technologies (website) | Mechanical | Pumped Storage Hydro | active | |
| Redflow | Electrochemical | Flow | closed | Published |
| RedoxBlox | Thermochemical | Metal Oxide | active | Published |
| Renewable Iron Fuel Technology (RIFT) (website) | Thermochemical | Metal Oxide | active | |
| Renewell Energy (website) | Mechanical | Gravity | active | Published |
| Revterra (website) | Mechanical | Flywheel | | Published |
| Rheem | Thermal | hot water storage | | |
| RheEnergise (website) | Mechanical | Pumped Storage Hydro | active | Published |
| Rondo Energy (website) | Thermal | Solid materials | active | Published |
| Saft (website) | Electrochemical | Lithium Ion | active | |
| Sage Geosystems (website) | Thermal | Geothermal | active | Published |
| SaltX | Thermochemical | Salt Hydrates | | Published |
| Sandia | Chemical | Hydrogen | | |
| SandTES | Thermal | Solid materials | | Published |
| SEITec HICAES (website) | Mechanical | Compressed Air | active | |
| Siemens (SHARK) | Thermal | Pumped Thermal | pending | |
| Siemens Energy CAES (website) | Mechanical | Compressed Air | active | Published |
| Siemens Gamesa | Thermal | Solid Materials | dormant | Published |
| Siemens Germany | Chemical | Hydrogen | | |
| Siemens UK | Chemical | Ammonia Production | | |
| Silbat (website) | Thermal | Molten Silicon | active | |
| SinkFloatSolutions (website) | Mechanical | Gravity | | |
| Skibo Energy (website) | Thermal | Solid materials | | Published |
| SLAC | Chemical | Synthetic Natural Gas | | |
| SolarReserve | Thermal | Molten salt | dormant | |
| Solid Power, Inc. (website) | Electrochemical | Lithium Ion | active | Published |
| Sorbiforce (website) | Electrochemical | Flow | active | |
| SRI Thermochemical | Thermochemical | Salt Carbonates | | Published |
| Starfire Energy (website) | Chemical | Ammonia Production | active | |
| StarRotor (website) | Thermal | Pumped Thermal | active | |
| Stash Energy (website) | Thermal | Phase change material | | |
| Steffes (website) | Thermal | Ceramic | | |
| Stiesdal | Thermal | Solid Materials | | Published |
| Storage Drop (website) | Mechanical | Compressed Air | | Published |
| Storelectric Compressed Air | Mechanical | Compressed Air | | Published |
| Stornetic | Mechanical | Flywheel | | Published |
| Storworks (formally Bright Energy) (website) | Thermal | Solid Materials | active | Published |
| Sumitomo (website) | Electrochemical | Flow | active | |
| Sunamp (website) | Thermal | Phase Change Material | | |
| Suntrain (website) | Electrochemical | Lithium Ion | active | |
| Surface Hydrokinetic Turbines Energy Management Unit (website) | Mechanical | Pumped Storage Hydro | active | |
| Synchrostor (website) | Thermal | Pumped Thermal | active | |
| TechnipFMC (website) | Chemical | Hydrogen | active | |
| Temporal Power | Mechanical | Flywheel | dormant | |
| Teraloop (website) | Mechanical | Flywheel | | |
| Terrament (website) | Mechanical | Gravity | | Published |
| TEXEL Energy Storage ([Home - TEXEL (texeles.com) website]) | Chemical | Hydrogen | active | Published |
| THEMES LLC (website) | Mechanical | Compressed Air | active | |
| TILOS (website) | Thermal | Molten Salt | | |
| TORC (website) | Thermal | Phase Change Material | active | |
| Tu Wien Tuw (website) | Thermal | Fluidized Bed | active | |
| Underground Energy (website) | Thermal | Geothermal | active | |
| UniEnergy Technologies (website) | Electrochemical | Flow | dormant | |
| Urban Electric Power (website) | Electrochemical | Zinc-based | active | Published |
| Viking Cold Solutions (website) | Thermal | Phase Change Material | active | |
| Viridi Parente, Inc. (website) | Electrochemical | Lithium Ion | active | Published |
| VoltStorage (website) | Electrochemical | Flow | active | |
| Vycon (website) | Mechanical | Flywheel | active | |
| Westinghouse (website) | Thermal | Pumped Thermal | active | |
| WindTP (website) | Thermal | Pumped Thermal | active | |
| ZAE Bayern ([ZAE Bayern (zae-bayern.de) website]) | Thermal | Phase change material | active | |
| Zinc8 (website) | Electrochemical | Metal-Air | dormant | |
| ZincFive (website) | Electrochemical | Nickel-Zinc | active | |