Company lists · Data refreshed September 2026

Top 25 Grid optimization software companies based in the United States

RevenueBase identified 554 grid optimization software companies headquartered in the United States as of September 2026 and tracks 44,149 professional contacts across them, including 16,266 with verified work emails and 12,557 with mobile numbers. San Francisco is the largest hub.

This list covers grid optimization software companies 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
554Companies
44,149Contacts tracked
16,266Verified emails
12,557Mobile numbers
Unlock all 554 companies Free signup · no credit card · 500 free credits

The 25 largest grid optimization software companies based in the United States

Ranked by team size
Top 25 of 554 grid optimization software companies 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 optimization software companies: 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
ToshibaIndirect evidence
Irvine, CA, United StatesHQ checked Sep 3, 2026n/a5,914

“For 150 years, Toshiba has been engineering solutions that drive progress, empower industries, and create a more resilient future.”

Source: company website · checked Sep 3, 2026
2
Hubbell IncorporatedIndirect evidence
Shelton, CT, United StatesHQ checked Sep 3, 202610001+4,066

“Hubbell Incorporated is a leading manufacturer of utility and electrical solutions that help build more reliable, resilient, and renewable energy infrastructure.”

Source: company website · checked Sep 3, 2026
3
GeneracIndirect evidence
Waukesha, WI, United StatesHQ checked Sep 3, 20265,001-10,0003,776

“Generac is the total energy solutions company powering a smarter world.”

Source: company website · checked Sep 3, 2026
4
FluenceIndirect 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
5
GE DigitalPartial 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
6
ArcadiaIndirect evidence
Washington, DC, United StatesHQ checked Sep 3, 2026501-1,000869

“Arcadia is the global utility data and energy solutions platform.”

Source: company website · checked Sep 3, 2026
7
Powersecure, INCIndirect 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
8
VertexonePartial evidence
Dallas, TX, United StatesHQ checked Sep 3, 2026201-500693

“VertexOne is the leading provider of cloud-based SaaS software powering the next generation of customer experience for utilities, energy retailers, and energy transition providers.”

Source: company website · checked Sep 3, 2026
9
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
10
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
11
UDCIndirect evidence
Englewood, CO, United StatesHQ checked Sep 3, 2026501-1,000536

“UDC has developed deep expertise and offers services that enable digital utilities and energy delivery resource management through fully integrated enterprise systems.”

Source: company website · checked Sep 3, 2026
12
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
13
UplightPartial 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
14
Open Systems InternationalIndirect evidence
Bedford, MA, United StatesHQ checked Sep 3, 20261,001-5,000444
Source: company website · checked Sep 3, 2026
15
TrilliantIndirect evidence
Cary, NC, United StatesHQ checked Sep 3, 2026201-500385

“Trilliant® empowers utilities and partners to accelerate the energy transition through a proven, modular, multi-technology communications platform that delivers secure, scalable…”

Source: company website · checked Sep 3, 2026
16
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
17
AMSCIndirect 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
18
VoltusIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 3, 2026201-500268

“Voltus is a leading DER technology platform and virtual power plant operator connecting distributed energy resources to electricity markets, delivering less expensive, more…”

Source: company website · checked Sep 3, 2026
19
MosaicPartial evidence
Renton, WA, United StatesHQ checked Sep 3, 2026201-500250

“Mosaic is a consulting firm that delivers custom solutions across the energy, utility, grid operations, and grid modernization space.”

Source: company website · checked Sep 3, 2026
20
PowerflexIndirect 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
21
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
22Westbury, NY, United StatesHQ checked Sep 3, 2026201-500242

“For over 45 years, Electro Industries/GaugeTech has been a leader in innovation and technological advancements in the areas of energy management and power monitoring.”

Source: company website · checked Sep 3, 2026
23Bj, 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
24Lake Mary, FL, United StatesHQ checked Sep 3, 20261,001-5,000160

“Qualus is a leading pure-play power services firm and innovator at the forefront of the energy transition and transformation, with differentiated capabilities across grid…”

Source: company website · checked Sep 3, 2026
25
AlsoenergyIndirect 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

Showing 25 of 554 grid optimization software companies based in the United States

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Grid optimization software companies based in the United States at a glance

As of Sep 3, 2026
11-50Median size (employees)
San FranciscoLargest hub · 33 HQs
12,557Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
202
11-50
193
51-200
99
201-500
23
501-1,000
11
1,001-5,000
18
5,001-10,000
4
10001+
4

Verified emails by last verification

0–30
0
31–60
1,317
61–90
9,379
90–180
5,356
180+
214

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 optimization software companies, 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 optimization software companies”. 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 optimization software 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 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, 16,266 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 optimization software companies by metro

  • Grid optimization software companies in San Francisco33
  • Grid optimization software companies in Houston26

Frequently asked

How many grid optimization software companies are there based in the United States?

RevenueBase identified 554 grid optimization software companies 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?

Toshiba, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most grid optimization software companies?

San Francisco leads with 33 headquartered companies, followed by Houston (26) and New York (21).

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 16,266 verified decision-maker contacts tracked across these 554 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.

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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.