Company lists · Data refreshed September 2026

Top 25 Grid scale battery storage worldwide

Name: Grid scale battery storage worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 1,947 companies tracked

RevenueBase identified 1,947 grid scale battery storage worldwide as of September 2026 and tracks 29,835 professional contacts across them, including 11,619 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers grid scale battery storage worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for grid scale battery storage follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

1,947Companies

29,835Contacts tracked

11,619Verified emails

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The 25 largest grid scale battery storage worldwide

Ranked by team size

Top 25 of 1,947 grid scale battery storage worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to grid scale battery storage: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Fluence	Partial evidence	Arlington, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,863 contacts →
	Partial evidence “To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…” Source: RevenueBase Database · checked Sep 20, 2026
2	Form Energy	Indirect evidence	Somerville, MA, United StatesHQ checked Sep 20, 2026	501-1,000	807 contacts →
	Indirect evidence “Form Energy is an American company driving innovation in energy technology and manufacturing.” Source: RevenueBase Database · checked Sep 20, 2026
3	ALFEN	Partial evidence	Almere, NetherlandsHQ checked Sep 20, 2026	501-1,000	678 contacts →
	Partial evidence “With transformer substations, energy storage systems, charging stations for electric vehicles and a diverse portfolio of other products and services, Alfen has a central and…” Source: RevenueBase Database · checked Sep 20, 2026
4	Strata Clean Energy	Indirect evidence	Durham, NC, United StatesHQ checked Sep 20, 2026	501-1,000	631 contacts →
	Indirect evidence “Strata Clean Energy is a fully integrated energy infrastructure company serving utilities, independent power producers, and hyperscalers navigating the rapid transformation of the…” Source: RevenueBase Database · checked Sep 20, 2026
5	Hoppecke Batteries	Strong evidence	Brilon, GermanyHQ checked Sep 20, 2026	1,001-5,000	530 contacts →
	Strong evidence “HOPPECKE - your expert for industrial batteries & energy storage solutions The availability and securing of electricity is one of the key requirements of our society and at the…” Source: RevenueBase Database · checked Sep 20, 2026
6	EOS Energy Enterprises, INC	Indirect evidence	Edison, NJ, United StatesHQ checked Sep 20, 2026	501-1,000	435 contacts →
	Indirect evidence “Eos is on a mission to build a future with limitless energy-with abundant energy that is reliable enough to fuel humanity’s limitless potential.” Source: RevenueBase Database · checked Sep 20, 2026
7	Genus Innovation Limited	Indirect evidence	Jaipur, IndiaHQ checked Sep 20, 2026	501-1,000	315 contacts →
	Indirect evidence “Genus Innovation Limited exists to deliver Energy Happiness, the peace of mind that comes from reliable, intelligent, and sustainable energy.” Source: RevenueBase Database · checked Sep 20, 2026
8	Nhoa Energy	Strong evidence	Milan, FranceHQ checked Sep 20, 2026	201-500	308 contacts →
	Strong evidence “NHOA Energy designs, delivers and services Battery Energy Storage Systems for utility-scale and industrial applications worldwide, based on proprietary technology.” Source: RevenueBase Database · checked Sep 20, 2026
9	Polarium	Partial evidence	Stockholm, SwedenHQ checked Sep 20, 2026	201-500	282 contacts →
	Partial evidence “Polarium is a leading energy storage developer.” Source: RevenueBase Database · checked Sep 20, 2026
10	Flexgen	Partial evidence	Durham, NC, United StatesHQ checked Sep 20, 2026	201-500	271 contacts →
	Partial evidence “FlexGen delivers the best integrated energy storage systems by taking a functionality and software-first approach.” Source: RevenueBase Database · checked Sep 20, 2026
11	Base Power Company	Indirect evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	201-500	248 contacts →
	Indirect evidence “Base is building the future of American power.” Source: RevenueBase Database · checked Sep 20, 2026
12	LG Energy Solution Vertech, INC	Indirect evidence	Westborough, MA, United StatesHQ checked Sep 20, 2026	51-200	244 contacts →
	Indirect evidence “LG Energy Solution Vertech, Inc.(LGES Vertech) delivers exceptional customer engagement throughout every stage of acquiring, installing, and operating advanced, reliable, and…” Source: RevenueBase Database · checked Sep 20, 2026
13	POWIN	Indirect evidence	Tualatin, OR, United StatesHQ checked Sep 20, 2026	501-1,000	242 contacts →
	Indirect evidence “Since 2010, Powin has been working to mitigate the economic and environmental impacts of climate change by revolutionizing the way energy is generated, transmitted, and…” Source: RevenueBase Database · checked Sep 20, 2026
14	Freedom WON PTY LTD	Partial evidence	Longmeadow Business Estate, South AfricaHQ checked Sep 20, 2026	201-500	234 contacts →
	Partial evidence “The Current Future in Energy Storage.” Source: RevenueBase Database · checked Sep 20, 2026
15	Leclanché SA	Partial evidence	Yverdon, SwitzerlandHQ checked Sep 20, 2026	201-500	217 contacts →
	Partial evidence “Leclanché SA is a global leader in advanced energy storage solutions based in Yverdon-les-Bains, Switzerland.” Source: RevenueBase Database · checked Sep 20, 2026
16	Aypa Power	Strong evidence	Austin, ON, United StatesHQ checked Sep 20, 2026	51-200	211 contacts →
	Strong evidence “Leading the evolution of energy infrastructure, Aypa Power has redefined utility-scale battery energy storage as a critical asset class, supporting grid reliability and…” Source: RevenueBase Database · checked Sep 20, 2026
17	Sympower	Strong evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	201-500	209 contacts →
	Strong evidence “Sympower is Europe’s leading independent optimiser and flexibility services provider, delivering cutting-edge Battery Energy Storage System (BESS) solutions and demand-side…” Source: RevenueBase Database · checked Sep 20, 2026
18	E-Storage	Partial evidence	Kitchener, ON, CanadaHQ checked Sep 20, 2026	1,001-5,000	208 contacts →
	Partial evidence “e-STORAGE, a subsidiary of Canadian Solar, deploys leading-edge, flexible, turnkey utility energy storage solutions worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
19	Energy Vault	Indirect evidence	Westlake Village, VA, United StatesHQ checked Sep 20, 2026	51-200	203 contacts →
	Indirect evidence “Energy Vault® is an integrated power infrastructure platform that builds, owns and operates flexible, reliable energy systems to accelerate time-to-power for utilities…” Source: RevenueBase Database · checked Sep 20, 2026
20	Greentech	Partial evidence	Hamburg, GermanyHQ checked Sep 20, 2026	201-500	197 contacts →
	Partial evidence “greentech is an integrated solar and storage specialist: The areas of business include project development, design, construction, and operational management of photovoltaic (PV)…” Source: RevenueBase Database · checked Sep 20, 2026
21	Jupiter Power	Partial evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	51-200	188 contacts →
	Partial evidence “Jupiter Power is putting deep energy storage expertise, proven project execution capability, and significant capital to work to help make the energy transition a reality.” Source: RevenueBase Database · checked Sep 20, 2026
22	FIELD	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	179 contacts →
	Indirect evidence “We're creating the renewable energy infrastructure and trading company of the future.” Source: RevenueBase Database · checked Sep 20, 2026
23	Akaysha Energy	Indirect evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	51-200	179 contacts →
	Indirect evidence “Akaysha Energy brings together specialist experience in energy markets, technology, development and capital solutions to unlock the energy future.” Source: RevenueBase Database · checked Sep 20, 2026
24	Plus Power	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	172 contacts →
	Strong evidence “The Plus Power team, led by seasoned executives from the renewables and energy storage industry, is accelerating the deployment of transmission-connected battery storage…” Source: RevenueBase Database · checked Sep 20, 2026
25	Newen Systems Pvt. LTD	Strong evidence	Vadodara, IndiaHQ checked Sep 20, 2026	51-200	167 contacts →
	Strong evidence “At Newen Systems, we are driving the future of clean energy with cutting-edge Battery Energy Storage Systems (BESS) and DC-coupled solutions.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: grid scale battery storage. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names grid scale battery storage.
Partial evidence: Its own public description names part of grid scale battery storage, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid scale battery storage. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,947 grid scale battery storage worldwide

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Grid scale battery storage worldwide at a glance

As of Sep 20, 2026

38.9%Verified-email coverage

15.3Average contacts per company

11-50Median size (employees)

3.2%Largest-city concentration · Shenzhen

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

806

11-50

572

51-200

306

201-500

134

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among grid scale battery storage, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for grid scale battery storage are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “grid scale battery storage”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names grid scale battery storage), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among grid scale battery storage, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 11,619 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Grid scale battery storage by location

15 lists · largest first

Every Grid scale battery storage list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names grid scale battery storage, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many grid scale battery storage are there worldwide?

RevenueBase identified 1,947 grid scale battery storage worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Fluence, headquartered in Arlington, tops this list with the largest team on record.

Which country has the most grid scale battery storage?

The United States leads with 283 companies, followed by China (235) and Germany (173). Every grid scale battery storage list by country and city is linked on this page.

Which city has the most grid scale battery storage?

Shenzhen leads with 63 headquartered companies, followed by London (31) and New York (16).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 11,619 verified decision-maker contacts tracked across these 1,947 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.