Top 130 Energy Storage startups

Nov 01, 2025 | By Alexander Gillet

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: $431.2M
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.
2
Country: Norway | Funding: $71.4M
Corvus designs, engineers and manufactures a proprietary advanced lithium energy-storage technology that can provide sustained power to hybrid and full-electric heavy-industrial equipment.
3
Country: Israel | Funding: $65.1M
Brenmiller Energy, based on its unique storage technology, provides sustainable energy solutions to the Distributed Generation market.
4
Country: USA | Funding: $29.3M
GoodPeak is a utility-scale battery energy storage platform that offers energy storage development pipeline.
5
Country: USA | Funding: $18.1M
Enact’s platform enables remote design, sales proposals and project management for solar storage, as well as improve end-customer engagement
6
Country: USA | Funding: $14.3M
Quino Energy manufactures batteries that uses specially designed reactants called quinones that are dissolved in water.
7
Country: USA | Funding: $3.8B
Recurrent Energy provides distributed solar power that makes renewable energy a practical choice for large scale energy users.
8
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.
9
Country: USA | Funding: $2.3B
Bloom Energy offers on-site power generation systems that can use a wide variety of inputs to generate electricity.
10
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.
11
Country: USA | Funding: $1.7B
Eos produces cost effective energy storage solutions that are less expensive than other battery technologies.
12
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.
13
Country: USA | Funding: $1.2B
Group14 Technologies is a battery storage technology company that develops silicon-carbon composite materials for lithium-ion markets.
14
Country: USA | Funding: $1.1B
Longroad Energy, focused on wind, solar and storage project development
15
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.
16
Country: USA | Funding: $737.6M
Stem pairs artificial intelligence with energy storage to help organizations automate energy cost savings and protect against changing rates.
17
Country: USA | Funding: $525M
Fluence makes energy storage technology solutions and services.
18
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.
19
Country: Switzerland | Funding: $458M
Energy Vault SA offers ground-breaking energy storage technology utilizing fundamental principles of science to deliver a storage solution.
20
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
Editor: Alexander Gillet
Alexander Gillet is a senior editor for EnergyStartups. He has a deep background in energy sector and startups. Alexander graduated from Emlyon Business School, a leading French business school specialized in entrepreneurship. He has helped several non-profit organizations dedicated to promoting environmental education and sustainability and has written over 250 articles on energy technology for various websites. In his free time, Alexander enjoys yoga, camping and exploring the Blue Ridge Mountains. You can contact Alexander at alexgillet(at)energystartups(dot)com