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Top 130 Energy Storage startups
Oct 04, 2025 | By Alexander Gillet | 27 |
These startups develop new energy storage technologies such as advanced lithium-ion batteries, gravity storage, compressed air energy storage (CAES), hydrogen storage, etc
1
Country: USA | Funding: $3.5M
B2U Storage Solutions manufactures battery energy storage systems while unlocking the potential of second life EV Batteries
B2U Storage Solutions manufactures battery energy storage systems while unlocking the potential of second life EV Batteries
2
Country: USA | Funding: $3.8B
Recurrent Energy provides distributed solar power that makes renewable energy a practical choice for large scale energy users.
Recurrent Energy provides distributed solar power that makes renewable energy a practical choice for large scale energy users.
3
Country: UK | Funding: $2.9B
Zenobe Energy is the largest independent owner and operator of battery storage in the UK. It buys and manages grid-scale batteries for its commercial customers, such as utilities and electric-vehicle operators.
Zenobe Energy is the largest independent owner and operator of battery storage in the UK. It buys and manages grid-scale batteries for its commercial customers, such as utilities and electric-vehicle operators.
4
Country: USA | Funding: $2.3B
Bloom Energy offers on-site power generation systems that can use a wide variety of inputs to generate electricity.
Bloom Energy offers on-site power generation systems that can use a wide variety of inputs to generate electricity.
5
Country: Canada | Funding: $2.3B
Hydrostor is a developer of Advanced Compressed Air Energy Storage (A-CAES), a long-duration, emission-free, cost-effective energy storage.
Hydrostor is a developer of Advanced Compressed Air Energy Storage (A-CAES), a long-duration, emission-free, cost-effective energy storage.
6
Country: USA | Funding: $1.7B
Eos produces cost effective energy storage solutions that are less expensive than other battery technologies.
Eos produces cost effective energy storage solutions that are less expensive than other battery technologies.
7
Country: USA | Funding: $1.6B
Form Energy is developing a brand new class of ultra-low cost, long duration energy storage systems. With these new systems, renewables can be made fully firm and dispatchable year-round, and transmission capacity can be expanded without the need for new wires.
Form Energy is developing a brand new class of ultra-low cost, long duration energy storage systems. With these new systems, renewables can be made fully firm and dispatchable year-round, and transmission capacity can be expanded without the need for new wires.
8
Country: USA | Funding: $1.2B
Group14 Technologies is a battery storage technology company that develops silicon-carbon composite materials for lithium-ion markets.
Group14 Technologies is a battery storage technology company that develops silicon-carbon composite materials for lithium-ion markets.
9
Country: USA | Funding: $1.1B
Longroad Energy, focused on wind, solar and storage project development
Longroad Energy, focused on wind, solar and storage project development
10
Country: Germany | Funding: €918M
SunFire provides liquid fuels and combustibles. It offers petrol and diesel from carbon dioxide and water by coupling renewable energy, as well as kerosene, waxes, methanol, and methane/synthetic natural gas. The company also allows storage of renewable electrical power in liquid fuels with storage, loading, and transport capabilities.
SunFire provides liquid fuels and combustibles. It offers petrol and diesel from carbon dioxide and water by coupling renewable energy, as well as kerosene, waxes, methanol, and methane/synthetic natural gas. The company also allows storage of renewable electrical power in liquid fuels with storage, loading, and transport capabilities.
11
Country: USA | Funding: $737.6M
Stem pairs artificial intelligence with energy storage to help organizations automate energy cost savings and protect against changing rates.
Stem pairs artificial intelligence with energy storage to help organizations automate energy cost savings and protect against changing rates.
12
Country: USA | Funding: $525M
Fluence makes energy storage technology solutions and services.
Fluence makes energy storage technology solutions and services.
13
Country: USA | Funding: $479.2M
NineDot Energy creates innovative energy solutions that make the urban grid cleaner, more resilient and less costly. It wants to turn underused properties into community battery-farm projects.
NineDot Energy creates innovative energy solutions that make the urban grid cleaner, more resilient and less costly. It wants to turn underused properties into community battery-farm projects.
14
Country: Switzerland | Funding: $458M
Energy Vault SA offers ground-breaking energy storage technology utilizing fundamental principles of science to deliver a storage solution.
Energy Vault SA offers ground-breaking energy storage technology utilizing fundamental principles of science to deliver a storage solution.
15
Country: UK | Funding: $445.5M
Highview Power’s CRYOBattery delivers, clean, reliable, and cost-efficient long-duration energy storage to enable a 100% renewable energy future. It is storing energy in “liquid air”—when you compress a gas enough, it turns liquid
Highview Power’s CRYOBattery delivers, clean, reliable, and cost-efficient long-duration energy storage to enable a 100% renewable energy future. It is storing energy in “liquid air”—when you compress a gas enough, it turns liquid
16
Country: USA | Funding: $420.1M
EnerVenue provides metal-hydrogen batteries for large-scale renewable and storage applications.
EnerVenue provides metal-hydrogen batteries for large-scale renewable and storage applications.
17
Country: USA | Funding: $390M
Our Next Energy is a developer of innovative energy storage solutions to expand access to sustainable power.
Our Next Energy is a developer of innovative energy storage solutions to expand access to sustainable power.
18
Country: USA | Funding: $374.5M
ESS is a leading provider of long-duration energy storage solutions ideally suited for C&I, utility, microgrid and off-grid applications. Using food-grade, earth-abundant elements like iron, salt, and water for the electrolyte, its innovative iron flow battery system is changing how the industry deploys energy storage.
ESS is a leading provider of long-duration energy storage solutions ideally suited for C&I, utility, microgrid and off-grid applications. Using food-grade, earth-abundant elements like iron, salt, and water for the electrolyte, its innovative iron flow battery system is changing how the industry deploys energy storage.
19
Country: UK | Funding: £287M
Field is a renewable energy company aiming to accelerate the build-out of renewable infrastructure needed to reach net zero. It is building battery storage projects across the UK
Field is a renewable energy company aiming to accelerate the build-out of renewable infrastructure needed to reach net zero. It is building battery storage projects across the UK
20
Country: USA | Funding: $360M
Powin Energy is a market leader in the manufacturing and development of energy storage technology used in stationary. Powin buys battery cells and hooks them up with proprietary software controls and ancillary equipment to produce full-fledged power plants. It competes in the upper echelons of the energy storage integration market with the likes of Tesla, Fluence and Wärtsilä.
Powin Energy is a market leader in the manufacturing and development of energy storage technology used in stationary. Powin buys battery cells and hooks them up with proprietary software controls and ancillary equipment to produce full-fledged power plants. It competes in the upper echelons of the energy storage integration market with the likes of Tesla, Fluence and Wärtsilä.
