Company lists · Data refreshed September 2026

Top 25 Grid energy storage software based in the United States

RevenueBase identified 691 grid energy storage software headquartered in the United States as of September 2026 and tracks 28,272 professional contacts across them, including 12,480 with verified work emails and 8,949 with mobile numbers. New York is the largest hub.

This list covers grid energy storage software headquartered in the United States, 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
691Companies
28,272Contacts tracked
12,480Verified emails
8,949Mobile numbers
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The 25 largest grid energy storage software based in the United States

Ranked by team size
Top 25 of 691 grid energy storage software based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names grid energy storage software: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
FluenceStrong evidence
Arlington, CA, United StatesHQ checked Sep 3, 20261,001-5,0001,842

“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 3, 2026
2
GE DigitalStrong evidence
San Ramon, CA, United StatesHQ checked Sep 3, 20261,001-5,0001,773

“At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.”

Source: company website · checked Sep 3, 2026
3
Form EnergyPartial evidence
Somerville, PA, United StatesHQ checked Sep 3, 2026501-1,000809

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

Source: company website · checked Sep 3, 2026
4
Powersecure, INCPartial evidence
Durham, NC, United StatesHQ checked Sep 3, 2026501-1,000733

“PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…”

Source: company website · checked Sep 3, 2026
5
Electric Power EngineersPartial evidence
Austin, IL, United StatesHQ checked Sep 3, 2026501-1,000619

“Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.”

Source: company website · checked Sep 3, 2026
6
Etap SoftwareIndirect evidence
Irvine, CA, United StatesHQ checked Sep 3, 20261,001-5,000538

“Optimize, simulate, and control electrical systems with confidence across utilities, infrastructure, manufacturing, and building sectors.”

Source: company website · checked Sep 3, 2026
7
QualitrolPartial evidence
Fairport, NY, United StatesHQ checked Sep 3, 2026501-1,000499

“Qualitrol is a global leader in electrical grid monitoring solutions for businesses that manage, operate, or support the power grid.”

Source: company website · checked Sep 3, 2026
8
UplightStrong evidence
Boulder, CO, United StatesHQ checked Sep 3, 2026501-1,000484

“Uplight is a clean energy technology company that unlocks grid capacity by activating customers and their connected devices to generate, shift, and save energy.”

Source: company website · checked Sep 3, 2026
9
ESSStrong evidence
Wilsonville, OR, United StatesHQ checked Sep 3, 2026201-500353

“ESS Tech, Inc.(NYSE: GWH) is a leading manufacturer of long-duration energy storage solutions.”

Source: company website · checked Sep 3, 2026
10
PCI Energy SolutionsIndirect evidence
Norman, OK, United StatesHQ checked Sep 3, 2026201-500345

“PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.”

Source: company website · checked Sep 3, 2026
11
AMSCPartial evidence
Ayer, MA, United StatesHQ checked Sep 3, 2026201-500333

“AMSC (NASDAQ: AMSC) generates the ideas, technologies and solutions that meet the world’s demand for smarter, cleaner … better energy.”

Source: company website · checked Sep 3, 2026
12
SPANIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 3, 2026201-500273

“Enabling electrification for all”

Source: company website · checked Sep 3, 2026
13
FlexgenStrong evidence
Durham, FL, United StatesHQ checked Sep 3, 2026201-500267

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

Source: company website · checked Sep 3, 2026
14
PowerflexStrong evidence
San Diego, CA, United StatesHQ checked Sep 3, 2026201-500249

“PowerFlex is a clean technology solutions company making the transition to carbon-free energy possible through a combination of green offerings, including solar, storage, EV…”

Source: company website · checked Sep 3, 2026
15
EnergyhubStrong evidence
Brooklyn, NY, United StatesHQ checked Sep 3, 202651-200249

EnergyHub is a software technology company based in New York, NY.”

Source: company website · checked Sep 3, 2026
16Westborough, MA, United StatesHQ checked Sep 3, 202651-200246

“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 3, 2026
17
Base Power CompanyIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 2026201-500242

“Base is building the future of American power.”

Source: company website · checked Sep 3, 2026
18
POWINPartial evidence
Tualatin, OR, United StatesHQ checked Sep 3, 2026501-1,000242

“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 3, 2026
19
Antora EnergyStrong evidence
San Jose, CA, United StatesHQ checked Sep 3, 2026201-500235

“Antora builds and deploys thermal energy storage to power always-on industrial operations with low-cost energy.”

Source: company website · checked Sep 3, 2026
20Bj, United StatesHQ checked Sep 3, 20261,001-5,000231

“Beijing Sifang Automation is a industrial automation company based out of BEIJING.”

Source: company website · checked Sep 3, 2026
21
Energy VaultPartial evidence
Westlake Village, VA, United StatesHQ checked Sep 3, 202651-200204

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: company website · checked Sep 3, 2026
22
Motive EnergyPartial evidence
Orange County, TX, United StatesHQ checked Sep 3, 2026201-500204

“Motive Energy transforms how businesses source, store, convert, move, and manage their energy through end-to-end solutions that empower customers to take control of their energy.”

Source: company website · checked Sep 3, 2026
23
AlsoenergyPartial evidence
Boulder, CO, United StatesHQ checked Sep 3, 2026201-500147

“From its founding, AlsoEnergy has led the market in edge-to-cloud portfolio management solutions that make clean energy more resilient, manageable, and scalable.”

Source: company website · checked Sep 3, 2026
24
Renew HomePartial evidence
Oakland, CA, United StatesHQ checked Sep 3, 202651-200142

“Renew Home is shaping the future of energy management and accelerating the transition to more resilient, more affordable power, by changing how we use energy at home.”

Source: company website · checked Sep 3, 2026
25New York, United StatesHQ checked Sep 3, 202651-200140

“Convergent Energy and Power manages all aspects of energy storage development for its grid operator, utility, and industrial customers.”

Source: company website · checked Sep 3, 2026

Showing 25 of 691 grid energy storage software based in the United States

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Grid energy storage software based in the United States at a glance

As of Sep 3, 2026
11-50Median size (employees)
New YorkLargest hub · 37 HQs
8,949Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
285
11-50
241
51-200
106
201-500
30
501-1,000
16
1,001-5,000
6
5,001-10,000
2
10001+
4

Verified emails by last verification

0–30
0
31–60
1,028
61–90
7,202
90–180
4,169
180+
81

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 energy storage software, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “grid energy storage software”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among grid energy storage software, 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 an evidence 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, 12,480 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 3, 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 energy storage software by metro

  • Grid energy storage software in New York37
  • Grid energy storage software in San Francisco30
  • Grid energy storage software in Houston30

Frequently asked

How many grid energy storage software are there based in the United States?

RevenueBase identified 691 grid energy storage software headquartered in the United States 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 Mountain View, tops this list with the largest team on record.

Which city has the most grid energy storage software?

New York leads with 37 headquartered companies, followed by San Francisco (30) and Houston (30).

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 12,480 verified decision-maker contacts tracked across these 691 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 3, 2026.

Ready to reach these companies? Verified emails and direct dials for all 691 grid energy storage software based in the United States. Start with a free account, no credit card.

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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 SmartSearch, 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.