Company lists · Data refreshed October 2026

Top 25 Industrial electrical inspection services based in the United States

Name: Industrial electrical inspection services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 6,188 companies tracked

RevenueBase identified 6,188 company matches for industrial electrical inspection services associated with the United States as of October 2026 and tracks 65,725 professional contacts across them, including 18,609 with verified work emails. Houston is the largest hub.

This list covers company matches for industrial electrical inspection services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 16, 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 RevenueBase SmartSearch · Exact Recorded Oct 16, 2026 How this list was built

6,188Companies

65,725Contacts tracked

18,609Verified emails

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The 25 largest industrial electrical inspection services based in the United States

Ranked by team size

Top 25 of 6,188 company matches for industrial electrical inspection services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	IES Holdings	Exact match	Houston, TX, United StatesHQ recorded Oct 16, 2026	5,001-10,000	2,661 contacts →
	Exact match “IES Holdings, Inc.(formerly known as Integrated Electrical Services, Inc.) provides electrical contracting services to commercial, industrial, and residential customers in the…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2	Shermco Industries	Exact match	Irving, TX, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,263 contacts →
	Exact match “Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3	Flanders	Exact match	Evansville, IN, United StatesHQ recorded Oct 16, 2026	501-1,000	828 contacts →
	Exact match “FLANDERS, Leverage our legacy.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4	Elec-Tech Electrical Contractors	Exact match	Long Beach, CA, United StatesHQ recorded Oct 16, 2026	n/a	778 contacts →
	Exact match “WELCOME TO OUR WEBSITE!” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5	Loenbro	Exact match	Westminster, CO, United StatesHQ recorded Oct 16, 2026	1,001-5,000	730 contacts →
	Exact match “Loenbro is a trusted, long-term construction lifecycle partner to thousands of customers across the U.S.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6	Electric Power Systems	Exact match	Maryland Heights, MO, United StatesHQ recorded Oct 16, 2026	501-1,000	666 contacts →
	Exact match “Electric Power Systems is an independent electrical testing & engineering organization.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7	Cache Valley Electric	Exact match	Logan, UT, United StatesHQ recorded Oct 16, 2026	1,001-5,000	662 contacts →
	Exact match “As one of the nation’s premier electrical contractors, we don’t just provide high-quality services.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8	Alterman, INC	Exact match	Live Oak, TX, United StatesHQ recorded Oct 16, 2026	501-1,000	615 contacts →
	Exact match “Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9	CSI Electrical Contractors, INC	Exact match	Santa Fe Springs, CA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	585 contacts →
	Exact match “Founded in 1990, CSI has become a leader in highly technical and innovative electrical design and construction.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10	ACE Electric, INC	Exact match	Valdosta, GA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	486 contacts →
	Exact match “Ace Electric is a family-owned/operated electrical contractor performing safe and high-quality work for clients throughout the United States.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
11	Amteck, LLC	Exact match	Lexington, KY, United StatesHQ recorded Oct 16, 2026	501-1,000	483 contacts →
	Exact match “Amteck is one of Kentucky’s largest privately held electrical construction firms, providing design-build electrical construction services for a wide variety of facilities…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12	E-J Electric Installation CO	Exact match	Long Island City, NY, United StatesHQ recorded Oct 16, 2026	1,001-5,000	471 contacts →
	Exact match “The E-J Group is active in all facets of electrical contracting, bringing experience, expertise, and a national reputation to projects that range in size up to more than $1…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13	Guarantee Electrical Company	Exact match	St. Louis, MO, United StatesHQ recorded Oct 16, 2026	501-1,000	447 contacts →
	Exact match “A full-service electrical contractor since 1902, providing capability, performance, and legendary innovation in new construction, design-build, low-voltage systems, energy…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
14	Strada Services	Exact match	Sanford, FL, United StatesHQ recorded Oct 16, 2026	1,001-5,000	415 contacts →
	Exact match “Strada Services is a full service electrical, security, and air conditioning contracting company servicing residential, commercial, and industrial customers in Florida and in the…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15	DP Electric INC	Exact match	Tempe, AZ, United StatesHQ recorded Oct 16, 2026	1,001-5,000	388 contacts →
	Exact match “DP Electric (DPE) has a long history as a dedicated trade partner.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16	Hoist & Crane Service Group	Exact match	New Orleans, LA, United StatesHQ recorded Oct 16, 2026	501-1,000	375 contacts →
	Exact match “Hoist & Crane Service Group is a national leader in comprehensive inspection and maintenance services for overhead lifting equipment and industrial elevators.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
17	Hunt Electric, LLC	Exact match	Salt Lake City, UT, United StatesHQ recorded Oct 16, 2026	501-1,000	367 contacts →
	Exact match “Hunt Electric is an industry-leading electrical contractor serving commercial, industrial, mission critical, mining, infrastructure, and numerous other sectors.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18	Versa Integrity Group, INC	Exact match	Tomball, TX, United StatesHQ recorded Oct 16, 2026	5,001-10,000	349 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19	Marathon Electrical Contractors	Exact match	Irondale, AL, United StatesHQ recorded Oct 16, 2026	501-1,000	345 contacts →
	Exact match “Marathon Electrical Contractors has been in business since 1987 and is a full service electrical contracting company.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
20	Eldeco, INC	Exact match	Piedmont, SC, United StatesHQ recorded Oct 16, 2026	501-1,000	331 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21	Mr. Electric	Exact match	Waco, TX, United StatesHQ recorded Oct 16, 2026	1,001-5,000	318 contacts →
	Exact match “Residential and Commercial Services Since 1994, the professional electricians at Mr.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
22	JE Richards Electric	Exact match	Lanham, MD, United StatesHQ recorded Oct 16, 2026	1,001-5,000	315 contacts →
	Exact match “JE Richards LLC is a large union Commercial Electrical Contracting company.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
23	Wilson Electric Services Corp	Exact match	Tempe, AZ, United StatesHQ recorded Oct 16, 2026	501-1,000	291 contacts →
	Exact match “We are more than an Electrical Contractor…We’re Your Partner As employee-owners we build your project as if it were our own.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
24	Starr Electric Company, INC	Exact match	Greensboro, NC, United StatesHQ recorded Oct 16, 2026	501-1,000	283 contacts →
	Exact match “Established in 1928, Starr Electric Company, Inc.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
25	Intermountain Electric, Inc. IME	Exact match	Denver, CO, United StatesHQ recorded Oct 16, 2026	501-1,000	281 contacts →
	Exact match “Intermountain Electric (IME) is a full-service electrical contractor known for craftsmanship, ingenuity, and trusted delivery.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “industrial electrical inspection services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 6,188 industrial electrical inspection services based in the United States

See the full list, filter by size, metro and specialty, and access 18,609 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial electrical inspection services based in the United States at a glance

As of Oct 16, 2026

28.3%Verified-email coverage

10.6Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Houston

Oct 16, 2026Page data refreshed

Companies by employee count

1-10

3,110

11-50

2,185

51-200

663

201-500

125

501-1,000

1,001-5,000

5,001-10,000

10001+

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 6,188 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United States whose business descriptions match “industrial electrical inspection services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 18,609 professional contacts with verified work emails across the full matched dataset. 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 October 16, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Industrial electrical inspection services by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “industrial electrical inspection services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial electrical inspection services are there based in the United States?

RevenueBase identified 6,188 company matches for industrial electrical inspection services associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

IES Holdings tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most industrial electrical inspection services?

Houston leads with 114 company records, followed by New York (56) and Denver (39).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 18,609 professional contacts with verified work emails tracked across these 6,188 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 16, 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.