Company lists · Data refreshed September 2026

Top 25 Electric substation equipment providers based in the United States

RevenueBase identified 873 electric substation equipment providers headquartered in the United States as of September 2026 and tracks 26,353 professional contacts across them, including 9,767 with verified work emails. Houston is the largest hub.

This list covers electric substation equipment providers 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 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 19, 2026 86% judged on-target in blind review
873Companies
26,353Contacts tracked
9,767Verified emails
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The 25 largest electric substation equipment providers based in the United States

Ranked by team size
Top 25 of 873 electric substation equipment providers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electric substation equipment providers: 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
1Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 20261,001-5,0002,561 contacts →

Indirect evidence

“Powell is hiring- Powell is dedicated to improving people’s lives by providing reliable power distribution systems in every market we serve.”

Source: RevenueBase Database · checked Sep 19, 2026
2Strong evidenceColumbia, SC, United StatesHQ checked Sep 19, 20261,001-5,0001,079 contacts →

Strong evidence

“Hubbell Power Systems (HPS) designs and manufactures a wide variety of electric power transmission, distribution, substation, underground, OEM, and communications products used by…”

Source: RevenueBase Database · checked Sep 19, 2026
3Strong evidenceFremont, CA, United StatesHQ checked Sep 19, 20261,001-5,000969 contacts →

Strong evidence

“Industrial Electric Mfg.(IEM) is the largest independent full-line manufacturer of electrical distribution equipment and integrated power systems in the U.S.”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceWarrendale, PA, United StatesHQ checked Sep 19, 20261,001-5,000967 contacts →

Partial evidence

“Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceHouston, TX, United StatesHQ checked Sep 19, 20261,001-5,000940 contacts →

Partial evidence

“Dashiell is a leading national provider of technical services to the electric utility, power generation, industrial, renewable and energy industries.”

Source: RevenueBase Database · checked Sep 19, 2026
6Strong evidenceBillings, MT, United StatesHQ checked Sep 19, 20261,001-5,000890 contacts →

Strong evidence

Electrical Consultants, Inc.(ECI) is an employee-owned, national provider of high voltage transmission, substation, and distribution solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceIron Mountain, MI, United StatesHQ checked Sep 19, 20261,001-5,000621 contacts →

Indirect evidence

“M.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceKansas City, MO, United StatesHQ checked Sep 19, 20261,001-5,000606 contacts →

Partial evidence

“PAR, a Quanta Services company, offers a full range of construction services for substations, overhead and underground distribution and transmission lines, engineering, design…”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 20261,001-5,000511 contacts →

Indirect evidence

“RESA Power is your ONE-STOP for all of your power needs.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidencePortland, OR, United StatesHQ checked Sep 19, 20261,001-5,000490 contacts →

Indirect evidence

“Our lives function on a power grid.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceOceanside, CA, United StatesHQ checked Sep 19, 2026501-1,000417 contacts →

Partial evidence

“Our 500+ associates are dedicated to servicing not only your electrical materials needs, but your electronic component, industrial automation, lighting, switchgear requirements…”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceRoanoke, VA, United StatesHQ checked Sep 19, 20261,001-5,000342 contacts →

Partial evidence

“New River Electrical Corporation (NRE) is one of the nation's leading employee-owned providers of electrical infrastructure construction and maintenance services, helping…”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceLittle Falls, MN, United StatesHQ checked Sep 19, 2026501-1,000288 contacts →

Partial evidence

“RMS Energy leads the industry by energizing the future through reliable power solutions, offering comprehensive installation and maintenance services on 480V to 765kV electrical…”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceGreer, SC, United StatesHQ checked Sep 19, 2026201-500286 contacts →

Indirect evidence

“Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceCastle Rock, United StatesHQ checked Sep 19, 20261,001-5,000286 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceWillow Grove, PA, United StatesHQ checked Sep 19, 20261,001-5,000284 contacts →

Indirect evidence

“Asplundh Engineering Services leverages more than 100 years of experience to provide a superior, single-point solution for engineering, design and testing services to…”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceKansas City, MO, United StatesHQ checked Sep 19, 2026501-1,000266 contacts →

Indirect evidence

“Milbank provides the tools that empower life.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceFontana, CA, United StatesHQ checked Sep 19, 2026201-500241 contacts →

Indirect evidence

“Crown Technical Systems, a Flex company, is headquartered in Fontana, California, with additional production and engineering facilities in Dallas, Texas, and Ontario, Canada.”

Source: RevenueBase Database · checked Sep 19, 2026
19Strong evidenceKansas City, MO, United StatesHQ checked Sep 19, 2026501-1,000216 contacts →

Strong evidence

“QUES provides electric distribution, transmission and substation engineering, utility asset management, electric power project management and other ancillary utility…”

Source: RevenueBase Database · checked Sep 19, 2026
20Strong evidenceTallmadge, OH, United StatesHQ checked Sep 19, 2026201-500195 contacts →

Strong evidence

“SDMyers is the industry leader in transformer and substation maintenance and electric power system reliability.”

Source: RevenueBase Database · checked Sep 19, 2026
21Partial evidenceMuskegon, MI, United StatesHQ checked Sep 19, 2026501-1,000193 contacts →

Partial evidence

“Newkirk Electric is a family-owned and operated, Michigan-based company headquartered on the shorelines of West Michigan.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceCarrollton, GA, United StatesHQ checked Sep 19, 2026201-500192 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceRapid City, SD, United StatesHQ checked Sep 19, 2026501-1,000182 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceCanonsburg, PA, United StatesHQ checked Sep 19, 2026201-500169 contacts →

Indirect evidence

“Pennsylvania Transformer Technology LLC (PTT) is a US-owned, industry leading manufacturer of a wide range of sizes and types of power transformers for the investor-owned…”

Source: RevenueBase Database · checked Sep 19, 2026
25Strong evidenceFranklin Park, IL, United StatesHQ checked Sep 19, 2026501-1,000165 contacts →

Strong evidence

“For over 100 years, SAI (Switchboard Apparatus, Inc.) has supplied innovative and reliable equipment for electrical power distribution.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 873 electric substation equipment providers based in the United States

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Electric substation equipment providers based in the United States at a glance

As of Sep 19, 2026
37.1%Verified-email coverage
30.2Average contacts per company
11-50Median size (employees)
4.2%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
339
11-50
308
51-200
135
201-500
38
501-1,000
21
1,001-5,000
24
10001+
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 873 companies.

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 electric substation equipment providers, 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 “electric substation equipment providers”. 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 electric substation equipment providers), 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 electric substation equipment providers, 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, 9,767 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 19, 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.

Electric substation equipment providers by metro

  • Electric substation equipment providers in Houston37

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 electric substation equipment providers, 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 electric substation equipment providers are there based in the United States?

RevenueBase identified 873 electric substation equipment providers 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?

Powell, headquartered in Houston, tops this list with the largest team on record.

Which city has the most electric substation equipment providers?

Houston leads with 37 headquartered companies, followed by Atlanta (7) and Los Angeles (7).

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 9,767 verified decision-maker contacts tracked across these 873 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 19, 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.