About Long Duration Energy Storage sector in Europe
The Long Duration Energy Storage sector in Europe comprises 205 companies, including 103 funded companies having collectively raised $2.19B in venture capital money and private equity. Out of these, 32 are Series A+ funded.
Long Duration Energy Storage sector in Europe has seen 5 acquisitions and 6 IPOs. This represents almost 5.4% of all such companies - which is higher than the 5.0% exit rate of tech companies in general.
This sector includes companies providing solutions for long term energy storage than existing energy storage systems that can be used as a power source on demand.
Companies providing energy storage technologies that are considered as Long Duration Energy Storage systems. Eg: Compressed Air, Pumped Storage Hydropower, Gravity Based LDES Technology, etc are included in this sector. Companies providing chemical batteries like Lithium-ion, Flow Batteries, Sodium Ion, Zinc and Aluminium based batteries are excluded.
Key Metrics
Total Companies
Top Companies
Total Funding
Funded Companies
Series A+ Companies
Series C+ Companies
IPOs
Acquisitions
Top Long Duration Energy Storage Companies in Europe
There are 205 Long Duration Energy Storage startups in Europe which include Hydrogenious LOHC Technologies, Energy Vault, SaltX Technology, Hyme, Sunamp. Out of these, 103 startups are funded, with 32 having secured Series A+ funding.
Over the past 10 years, an average of 10 new companies have been launched annually. Notably, several of these startups have been founded by alumni of Imperial College London, University of Cambridge and HEC Paris.
Here is the list of top Long Duration Energy Storage startups in Europe
Provider of large scale hydrogen storage solutions. The platform has developed safe and efficient storage of hydrogen in liquid organic hydrogen carriers. LOHC can be stored and transported under ambient conditions with the existing fuel infrastructure, without the need for high pressures or low temperatures.
Key facts about Hydrogenious LOHC Technologies
- Founded Year: 2013
- Location: Erlangen (Germany)
- Stage: Series B
- Total Funding till date: $102M
- Investors: Winkelmann Group, Anglo American and 16 Others
- Latest Funding Round: Series B, Feb 20, 2025, $*****
- Tracxn Score: 66/100 What is this?
- Competitors Rank: 1 of 3 Competitors
2. Energy Vault
Provider hydro-based energy storage system. Its offerings include proprietary gravity, battery, and green hydrogen energy storage hardware technologies. Its technology portfolio delivers customized short and long duration energy storage solutions to help customers reduce energy costs while maintaining power reliability. It utilizes eco-friendly materials with the ability to integrate waste materials.
Key facts about Energy Vault
- Founded Year: 2017
- Location: Lugano (Switzerland)
- Stage: Public
- Total Funding till date: $110M
- Investors: SoftBank Vision Fund, CEMEX Ventures and 18 Others
- Latest Funding Round: Post IPO, Oct 09, 2025, $*****
- Tracxn Score: 61/100 What is this?
- Competitors Rank: 1 of 12 Competitors
Saltwater based energy storage system. It has developed SaltX technology, which stores energy in salt crystals and converts it to heating and cooling, reducing energy consumption and costs by 1/3 as per their claims. It has three products HeatBoost for a water heater or a boiler, Verdacc for air conditioning of vehicles such as trucks, buses and construction equipment, CoolStore for air conditioning and energy storage to products such as solar thermal collectors and co-generation engines.
Key facts about SaltX Technology
4. Hyme
Developer of thermal energy storage solutions for industrial decarbonization applications. The company’s technology converts renewable electricity into high-temperature steam for process heat. This solution aims to reduce emissions and provide cost-effective, reliable operations. The company focuses on industries that require large-scale heat, such as food and beverage, chemicals, pharmaceuticals, and bio-based materials.
Key facts about Hyme
- Founded Year: 2021
- Location: Copenhagen (Denmark)
- Stage: Series A
- Total Funding till date: $26M
- Investors: Heartland, Danmarks Eksport og Investeringsfond and 3 Others
- Latest Funding Round: Series A, Dec 01, 2023, $*****
- Tracxn Score: 58/100 What is this?
- Competitors Rank: 1 of 4 Competitors
5. Sunamp
Manufacturer of compact thermal energy storage solutions for hot water, heating, and cooling applications. The solutions helps to improve energy efficiency and sustainability in homes, buildings, and vehicles by optimizing renewable energy sources and reducing carbon emissions. The company offers products for domestic and commercial use, including thermal batteries compatible with heat pumps. They provide support for installers and stockists.
Key facts about Sunamp
- Founded Year: 2006
- Location: Edinburgh (United Kingdom)
- Stage: Series B
- Total Funding till date: $30.4M
- Investors: Equity Gap, Par Equity and 49 Others
- Latest Funding Round: Grant (prize money), Nov 28, 2022, $*****
- Tracxn Score: 57/100 What is this?
- Competitors Rank: 83 of 6,707 Competitors
Companies founded year-on-year in the Long Duration Energy Storage sector in Europe
18 Long Duration Energy Storage startups in Europe were founded in 2020 - this is the most number of startups founded in any year in the last 10 years.
- Total Number of Companies
Year | No. of companies |
|---|---|
2025 | 1 |
2024 | 2 |
2023 | 9 |
2022 | 12 |
2021 | 9 |
2020 | 18 |
2019 | 16 |
2018 | 12 |
2017 | 14 |
2016 | 16 |
Stage-wise distribution of Long Duration Energy Storage sector companies in Europe
Out of the total 205 Long Duration Energy Storage companies in Europe, 103 have secured funding. Among them, 32 have reached Series A or higher, and 19 to Series B or beyond.
Founded - 205
Funded - 103
Series A+ - 32
Series B+ - 19
Series C+ - 15
Company Stage | No. of companies |
|---|---|
Founded | 205 |
Funded | 103 |
Series A+ | 32 |
Series B+ | 19 |
Series C+ | 15 |
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Funding Trends in the Long Duration Energy Storage sector in Europe
Total funding year-on-year in the Long Duration Energy Storage sector in Europe
The Long Duration Energy Storage sector in Europe saw a total funding of more than $1.83B in the last 10 years. The most amount of funding was in 2021 at more than $587M.
- Total Funding
Year | Total Funding |
|---|---|
2025 | $372M |
2024 | $185M |
2023 | $248M |
2022 | $136M |
2021 | $587M |
2020 | $74.5M |
2019 | $159M |
2018 | $28.5M |
2017 | $14.1M |
Recent Funding Rounds in Long Duration Energy Storage in Europe
In the year 2025, till October 2025, Long Duration Energy Storage companies in Europe have raised $35M in equity funding across 7 rounds.
In the same period last year (i.e. till October 2024), Long Duration Energy Storage companies in Europe had raised $35.5M across 8 rounds.
So, 2025 has seen a 1.51% drop in funding in Long Duration Energy Storage companies in Europe as compared to 2024.
Here are some recent, important funding rounds in Long Duration Energy Storage companies in Europe:
Company | Round Raised | Amount Raised | Funding Date | Investors |
|---|---|---|---|---|
Series A | 3326 | Oct 22, 2025 | ||
Seed | 2934 | Aug 20, 2025 | ||
Series C | 6862 | Jul 25, 2025 | ||
Series A | 8500 | Jul 15, 2025 | ||
Seed | 5990 | May 23, 2025 |
Top Investors in Long Duration Energy Storage in Europe
Europa is the top investor in Long Duration Energy Storage companies in Europe based on number of companies invested.
Here are some top investors in Long Duration Energy Storage companies in Europe:
Investor | Location | Top Portfolio Companies |
|---|---|---|
Brussels (Belgium) | ||
London (United Kingdom) | ||
Eindhoven (Netherlands) | ||
Sunnyvale (United States) |
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M&A activity in Long Duration Energy Storage sector in Europe
In the year 2024, till August 2024, 1 acquisition happened in Long Duration Energy Storage sector in Europe.
Here are some recent, important acquisitions in Long Duration Energy Storage sector in Europe:
Company | Acquisition Type | Acquisition Date | Acquirers |
|---|---|---|---|
Business Acquisition | Aug 02, 2024 | ||
Business Acquisition | Sep 30, 2021 | ||
Business Acquisition | Mar 04, 2021 | ||
Business Acquisition | 2018 | ||
Acqui-Hired | Feb 06, 2018 |
Acquisition trends in Long Duration Energy Storage sector in Europe
Here are the acquisition trends in Long Duration Energy Storage sector in Europe:
- Total Number of Acquisitions
Year | No. of companies |
|---|---|
2026 | - |
2025 | - |
2024 | 1 |
2023 | - |
2022 | - |
2021 | 2 |
2020 | - |
2019 | - |
2018 | 2 |
2017 | - |
IPOs in Long Duration Energy Storage in Europe
In the year 2021, till June 2021, 2 IPOs happened in Long Duration Energy Storage sector in Europe.
Here are some recent, important IPOs in Long Duration Energy Storage sector in Europe:
Company | IPO Date | Exchange Symbol |
|---|---|---|
Jun 24, 2021 | Euronext Exchange (Euronext) | |
Apr 01, 2021 | New York Stock Exchange (NYSE) | |
Oct 22, 2020 | OTC Markets (OTCMKTS) | |
Apr 03, 2020 | Frankfurt Stock Exchange (FRA) | |
Jul 29, 2011 | Frankfurt Stock Exchange (FRA) |
Colleges which produce the most Long Duration Energy Storage companies in Europe
Companies founded by alumni from top colleges in the Long Duration Energy Storage in Europe
Most number of Long Duration Energy Storage startups in Europe have been founded by alumni from Imperial College London, University of Cambridge and HEC Paris.
College | No. of companies |
|---|---|
Imperial College London | 4 |
University of Cambridge | 4 |
HEC Paris | 2 |
Hong Kong University of Science and Technology (HKUST) | 1 |
Kellogg School of Management | 1 |
Tel Aviv University | 1 |
The University of Edinburgh | 1 |
University of Edinburgh | 1 |
University of Warwick | 1 |
Total funding in Long Duration Energy Storage companies founded by alumni from top colleges in Europe
In the last 10 years, Kellogg School of Management graduates' Long Duration Energy Storage companies in Europe have raised the most funding among top colleges. University of Cambridge alumni are second, and The University of Edinburgh alumni are third.
College | Total Funding |
|---|---|
Kellogg School of Management | $580M |
University of Cambridge | $56.9M |
The University of Edinburgh | $52M |
Imperial College London | $22M |
University of Edinburgh | $9.58M |
University of Warwick | $4.33M |
HEC Paris | $3.19M |
Hong Kong University of Science and Technology (HKUST) | - |
Tel Aviv University | - |
Top News in Long Duration Energy Storage in Europe
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HDF, Neuman & Esser, and GIZ Partner to Decarbonise Indonesia’s FerriesHydrogen Central•Oct 21, 2025•Neumann, HDF Energy, GIZ
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Holcim invests in SaltX’s plasma technologyInternational Cement Review•Jun 30, 2025•Holcim, SaltX Technology
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ENERGYNEST signs power-to-heat contract with LEONHARD KURZPower Engineering International•Mar 31, 2025•EnergyNest, Kurz World
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New Management Team at Hydrogenious LOHCChemanager Online•Feb 20, 2025•Hydrogenious LOHC Technologies
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Energynest Announces New Chief To Lead Next Growth PhasePower Engineering International•Jan 21, 2025•EnergyNest
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Hyme Energy and Arla’s Partnership for Sustainable Thermal SolutionsGlobal Village Space•Dec 19, 2024•Hyme, Arla Foods
