Company lists · Data refreshed September 2026

Top 25 Energy storage companies based in the United States

Name: Energy storage companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 728 companies tracked

The 728 energy storage companies based in the United States include businesses that develop, manufacture, integrate, install, or service systems for storing electricity and managing when it is delivered. This directory includes 38,154 contacts and 14,598 email addresses, and New York is the single most-represented city among the companies listed as of September 2026.

Energy storage companies develop, manufacture, install, integrate, or service systems that store electricity for later use, grid support, backup power, or energy management. This list covers companies whose primary business includes developing, manufacturing, integrating, installing, or servicing energy storage systems and related equipment or services. Ranked by team size, largest first. Data current as of September 6, 2026.

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 6, 2026 86% judged on-target in blind review

728Companies

38,154Contacts tracked

14,598Verified emails

13,001Mobile numbers

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The 25 largest energy storage companies based in the United States

Ranked by team size

Top 25 of 728 energy storage companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to energy storage companies: 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	Enersys	Partial evidence	Reading, PA, United StatesHQ checked Sep 6, 2026	5,001-10,000	4,520 contacts →
	Partial evidence “EnerSys is a global leader in stored energy solutions helping industrial, infrastructure and defense customers address critical power and operational needs with batteries…” Source: RevenueBase Database · checked Sep 6, 2026
2	Enphase Energy	Partial evidence	Fremont, CA, United StatesHQ checked Sep 6, 2026	1,001-5,000	3,130 contacts →
	Partial evidence “Enphase Energy is a global energy technology company and the world’s leading supplier of microinverter-based solar and battery systems.” Source: RevenueBase Database · checked Sep 6, 2026
3	Fluence	Strong evidence	Arlington, VA, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,863 contacts →
	Strong 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 6, 2026
4	Mitsubishi Power Americas	Indirect evidence	Lake Mary, FL, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,859 contacts →
	Indirect evidence “Mitsubishi Power Americas is creating a future that works for people and the planet through innovative power generation technology and solutions.” Source: RevenueBase Database · checked Sep 6, 2026
5	Ormat Technologies, INC	Indirect evidence	Reno, NV, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,281 contacts →
	Indirect evidence “With over five decades of experience, Ormat Technologies, Inc.” Source: RevenueBase Database · checked Sep 6, 2026
6	Recurrent Energy	Strong evidence	Austin, United StatesHQ checked Sep 6, 2026	501-1,000	931 contacts →
	Strong evidence “Recurrent Energy, a subsidiary of Canadian Solar Inc, is one of the world's largest and most geographically diversified utility-scale solar and energy storage project development…” Source: RevenueBase Database · checked Sep 6, 2026
7	Redwood Materials	Indirect evidence	Carson City, NV, United StatesHQ checked Sep 6, 2026	1,001-5,000	865 contacts →
	Indirect evidence “Redwood Materials is building the U.S.” Source: RevenueBase Database · checked Sep 6, 2026
8	Form Energy	Partial evidence	Somerville, MA, United StatesHQ checked Sep 6, 2026	501-1,000	807 contacts →
	Partial evidence “Form Energy is an American company driving innovation in energy technology and manufacturing.” Source: RevenueBase Database · checked Sep 6, 2026
9	Clearway Energy Group	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	501-1,000	795 contacts →
	Partial evidence “Clearway Energy Group’s vision is a world powered by clean energy.” Source: RevenueBase Database · checked Sep 6, 2026
10	Stryten Energy	Strong evidence	Alpharetta, GA, United StatesHQ checked Sep 6, 2026	1,001-5,000	677 contacts →
	Strong evidence “Stryten Energy helps solve the world’s most pressing energy challenges with a broad range of energy storage solutions across the Essential Power, Motive Power, Transportation…” Source: RevenueBase Database · checked Sep 6, 2026
11	Strata Clean Energy	Partial evidence	Durham, NC, United StatesHQ checked Sep 6, 2026	501-1,000	631 contacts →
	Partial 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 6, 2026
12	A123 Systems	Strong evidence	Novi, MI, United StatesHQ checked Sep 6, 2026	1,001-5,000	530 contacts →
	Strong evidence “A123 Systems, LLC develops and manufactures advanced Nanophosphate® lithium iron phosphate batteries and energy storage systems that deliver high power, maximize usable energy…” Source: RevenueBase Database · checked Sep 6, 2026
13	EOS Energy Enterprises, INC	Partial evidence	Edison, NJ, United StatesHQ checked Sep 6, 2026	501-1,000	435 contacts →
	Partial 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 6, 2026
14	Supernova	Partial evidence	Irvine, CA, United StatesHQ checked Sep 6, 2026	201-500	370 contacts →
	Partial evidence “Supernova embodies the spirit of innovation and dedication to a sustainable future, making it a shining example of what it means to be a leader in the renewable energy industry.” Source: RevenueBase Database · checked Sep 6, 2026
15	ESS	Indirect evidence	Wilsonville, OR, United StatesHQ checked Sep 6, 2026	201-500	354 contacts →
	Indirect evidence “ESS, Inc.” Source: RevenueBase Database · checked Sep 6, 2026
16	Group14 Technologies	Indirect evidence	Woodinville, WA, United StatesHQ checked Sep 6, 2026	201-500	282 contacts →
	Indirect evidence “Founded with the vision to electrify everything, Group14 is the leading commercial manufacturer of advanced silicon battery materials.” Source: RevenueBase Database · checked Sep 6, 2026
17	Silicon Ranch Corporation	Strong evidence	Nashville, TN, United StatesHQ checked Sep 6, 2026	51-200	279 contacts →
	Strong evidence “Founded in 2011, Silicon Ranch is a fully integrated provider of customized renewable energy, carbon, and battery storage solutions for a diverse set of partners across North…” Source: RevenueBase Database · checked Sep 6, 2026
18	Flexgen	Strong evidence	Durham, NC, United StatesHQ checked Sep 6, 2026	201-500	271 contacts →
	Strong evidence “FlexGen delivers the best integrated energy storage systems by taking a functionality and software-first approach.” Source: RevenueBase Database · checked Sep 6, 2026
19	Malta INC	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 6, 2026	n/a	264 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026
20	LG Energy Solution Vertech, INC	Partial evidence	Westborough, MA, United StatesHQ checked Sep 6, 2026	51-200	244 contacts →
	Partial 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 6, 2026
21	Antora Energy	Partial evidence	San Jose, CA, United StatesHQ checked Sep 6, 2026	201-500	242 contacts →
	Partial evidence “Antora Energy delivers affordable, reliable energy to industry, data centers, and the grid.” Source: RevenueBase Database · checked Sep 6, 2026
22	POWIN	Partial evidence	Tualatin, OR, United StatesHQ checked Sep 6, 2026	501-1,000	242 contacts →
	Partial 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 6, 2026
23	OUR Next Energy ONE	Strong evidence	Novi, MI, United StatesHQ checked Sep 6, 2026	201-500	224 contacts →
	Strong evidence “Our Next Energy (ONE) is paving the way for an electric future, innovating energy storage technologies that will rapidly expand the world’s ability to access sustainable power for…” Source: RevenueBase Database · checked Sep 6, 2026
24	Longroad Energy	Strong evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	51-200	210 contacts →
	Strong evidence “Founded in 2016, Longroad Energy is a U.S-based energy company focused on developing and operating wind, solar, storage, and data center projects throughout North America.” Source: RevenueBase Database · checked Sep 6, 2026
25	NEW Leaf Energy, INC	Strong evidence	Lowell, MA, United StatesHQ checked Sep 6, 2026	51-200	209 contacts →
	Strong evidence “New Leaf Energy is one of the leading developers of renewable energy and energy storage projects in the United States-both distributed generation and utility scale.” Source: RevenueBase Database · checked Sep 6, 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: energy storage companies. 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 energy storage companies.
Partial evidence: Its own public description names part of energy storage companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy storage companies. 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 728 energy storage companies based in the United States

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Energy storage companies based in the United States at a glance

As of Sep 6, 2026

38.3%Verified-email coverage

34.1%Mobile-number coverage

52.4Average contacts per company

11-50Median size (employees)

5.2%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

260

11-50

243

51-200

137

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

13,5850–30

94331–60

861–90

390–180

59180+

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 energy storage companies, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “energy storage companies”. 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 energy storage companies), 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 energy storage companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 14,598 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 6, 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.

Energy storage companies by metro

Frequently asked

How many energy storage companies are based in the United States?

The directory lists 728 energy storage companies based in the United States as of September 2026.

Where are energy storage companies located?

New York is the single most-represented city among the companies on this list.

How many contacts and email addresses are available for energy storage companies?

The directory includes 38,154 contacts and 14,598 email addresses for energy storage companies.

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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.