Company lists · Data refreshed September 2026

Top 25 Energy storage companies based in the United States

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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceReading, PA, United StatesHQ checked Sep 6, 20265,001-10,0004,520 contacts →

EnerSys is a global leader in stored energy solutions helping industrial, infrastructure and defense customers address critical power and operational needs with batteries…”

Source: company website · checked Sep 6, 2026
2Partial evidenceFremont, CA, United StatesHQ checked Sep 6, 20261,001-5,0003,130 contacts →

“Enphase Energy is a global energy technology company and the world’s leading supplier of microinverter-based solar and battery systems.”

Source: company website · checked Sep 6, 2026
3Strong evidenceArlington, VA, United StatesHQ checked Sep 6, 20261,001-5,0001,863 contacts →

“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: company website · checked Sep 6, 2026
4Indirect evidenceLake Mary, FL, United StatesHQ checked Sep 6, 20261,001-5,0001,859 contacts →

“Mitsubishi Power Americas is creating a future that works for people and the planet through innovative power generation technology and solutions.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceReno, NV, United StatesHQ checked Sep 6, 20261,001-5,0001,281 contacts →

“With over five decades of experience, Ormat Technologies, Inc.”

Source: company website · checked Sep 6, 2026
6Strong evidenceAustin, United StatesHQ checked Sep 6, 2026501-1,000931 contacts →

“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: company website · checked Sep 6, 2026
7Indirect evidenceCarson City, NV, United StatesHQ checked Sep 6, 20261,001-5,000865 contacts →

“Redwood Materials is building the U.S.”

Source: company website · checked Sep 6, 2026
8Partial evidenceSomerville, MA, United StatesHQ checked Sep 6, 2026501-1,000807 contacts →

“Form Energy is an American company driving innovation in energy technology and manufacturing.”

Source: company website · checked Sep 6, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026501-1,000795 contacts →

“Clearway Energy Group’s vision is a world powered by clean energy.”

Source: company website · checked Sep 6, 2026
10Strong evidenceAlpharetta, GA, United StatesHQ checked Sep 6, 20261,001-5,000677 contacts →

“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: company website · checked Sep 6, 2026
11Partial evidenceDurham, NC, United StatesHQ checked Sep 6, 2026501-1,000631 contacts →

“Strata Clean Energy is a fully integrated energy infrastructure company serving utilities, independent power producers, and hyperscalers navigating the rapid transformation of the…”

Source: company website · checked Sep 6, 2026
12Strong evidenceNovi, MI, United StatesHQ checked Sep 6, 20261,001-5,000530 contacts →

“A123 Systems, LLC develops and manufactures advanced Nanophosphate® lithium iron phosphate batteries and energy storage systems that deliver high power, maximize usable energy…”

Source: company website · checked Sep 6, 2026
13Partial evidenceEdison, NJ, United StatesHQ checked Sep 6, 2026501-1,000435 contacts →

“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: company website · checked Sep 6, 2026
14Partial evidenceIrvine, CA, United StatesHQ checked Sep 6, 2026201-500370 contacts →

“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: company website · checked Sep 6, 2026
15Indirect evidenceWilsonville, OR, United StatesHQ checked Sep 6, 2026201-500354 contacts →

“ESS, Inc.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceWoodinville, WA, United StatesHQ checked Sep 6, 2026201-500282 contacts →

“Founded with the vision to electrify everything, Group14 is the leading commercial manufacturer of advanced silicon battery materials.”

Source: company website · checked Sep 6, 2026
17Strong evidenceNashville, TN, United StatesHQ checked Sep 6, 202651-200279 contacts →

“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: company website · checked Sep 6, 2026
18Strong evidenceDurham, NC, United StatesHQ checked Sep 6, 2026201-500271 contacts →

“FlexGen delivers the best integrated energy storage systems by taking a functionality and software-first approach.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceCambridge, MA, United StatesHQ checked Sep 6, 2026n/a264 contacts →
Source: company website · checked Sep 6, 2026
20Partial evidenceWestborough, MA, United StatesHQ checked Sep 6, 202651-200244 contacts →

“LG Energy Solution Vertech, Inc.(LGES Vertech) delivers exceptional customer engagement throughout every stage of acquiring, installing, and operating advanced, reliable, and…”

Source: company website · checked Sep 6, 2026
21Partial evidenceSan Jose, CA, United StatesHQ checked Sep 6, 2026201-500242 contacts →

“Antora Energy delivers affordable, reliable energy to industry, data centers, and the grid.”

Source: company website · checked Sep 6, 2026
22Partial evidenceTualatin, OR, United StatesHQ checked Sep 6, 2026501-1,000242 contacts →

“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: company website · checked Sep 6, 2026
23Strong evidenceNovi, MI, United StatesHQ checked Sep 6, 2026201-500224 contacts →

“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: company website · checked Sep 6, 2026
24Strong evidenceBoston, MA, United StatesHQ checked Sep 6, 202651-200210 contacts →

“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: company website · checked Sep 6, 2026
25Strong evidenceLowell, MA, United StatesHQ checked Sep 6, 202651-200209 contacts →

“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: company website · checked Sep 6, 2026

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)
4.8%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
42
501-1,000
21
1,001-5,000
17
5,001-10,000
5
10001+
3

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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

  • Energy storage companies in New York35
  • Energy storage companies in Houston33

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.