Company lists · Data refreshed September 2026
Top 25 Electrical maintenance contractors based in Houston, United States
RevenueBase identified 117 electrical maintenance contractors headquartered in Houston, United States as of September 2026 and tracks 4,100 professional contacts across them, including 682 with verified work emails. Houston is the largest hub.
This list covers electrical maintenance contractors headquartered in Houston, 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 16, 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.
The 25 largest electrical maintenance contractors based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,567 contacts → | ||||
Partial evidence “IES Holdings, Inc.(formerly known as Integrated Electrical Services, Inc.) provides electrical contracting services to commercial, industrial, and residential customers in the…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 189 contacts → | ||||
Partial evidence “Trio Electric was founded in 2003.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 166 contacts → | ||||
Strong evidence “For over six decades, our locally rooted electrical contractors have delivered solutions grounded in integrity, safety, cost-effectiveness, and uncompromising workmanship.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 152 contacts → | ||||
Partial evidence “KenMor Electric is recognized for its service and craftsmanship.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 138 contacts → | ||||
Partial evidence “We offer superior plumbing, air conditioning, and electrical services to Residential and Commercial clients in Houston,TX.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 86 contacts → | ||||
Partial evidence “BELCO (Blanco Electric Ltd Co) is a commercial electrical engineering, contracting and service company.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 74 contacts → | ||||
Strong evidence “From large-scale design/build projects to small-scale maintenance jobs, you need a commercial electrical contractor who will be by your side from pre-construction through the…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 45 contacts → | ||||
Partial evidence “Founded on the plains of West Texas in 1948, brothers John and Phillip Cappadonna opened the doors of Mid-West Electric in Midland.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 31 contacts → | ||||
Partial evidence “Since CORRECT Electric’s inception 20-years ago, we have not waived from our core principle of ‘Total Customer Satisfaction’.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 28 contacts → | ||||
Strong evidence “Commercial and Residential Electrical Contractor located in Houston, Texas.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 25 contacts → | ||||
Strong evidence “Mccune Electrical Services is a leading Electrical Contractor that specializes in delivering high-quality Electrical Services in the commercial, medical, telecommunication, and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 25 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 24 contacts → | ||||
Partial evidence “For more than 30 years, Colwell Electric has been committed to providing high-quality electrical services for residential and commercial clients.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 23 contacts → | ||||
Partial evidence “Industrial Electrical Services, Inc.(IES) is a leading provider of commercial and industrial electrical service in the greater Houston area.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 21 contacts → | ||||
Partial evidence “Welcome to Wired Electrical Services, your local Houston area’s reliable, family-owned electrical specialist.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 21 contacts → | ||||
Strong evidence “Electrical contractors for industrial, commercial, and service environments in Dallas, Houston and New Orleans.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 18 contacts → | ||||
Partial evidence “Britain Electric is an electrical contracting company with more than 75 years of experience serving commercial, medical, government, industrial, transportation and data center…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Partial evidence “HENRY POWER ELECTRIC LLC provides top-notch electrical services, starting in Houston and expanding to cities across Texas, Utah, Arizona, and California, with plans for further…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 16 contacts → | ||||
Partial evidence “Since 1960 Swartz Electric has been building a reputation as a leader in the electrical contracting industry.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 16 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 contacts → | ||||
Strong evidence “As a full-service electrical contractor, E3 Electric offers a spectrum of electrical services for discerning residential, commercial, and industrial clients.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 15 contacts → | ||||
Strong evidence “Interior/Exterior Lighting & Electrical Maintenance Lighting Consulting/Design & Energy Analysis Lightbulb & Fixture Distribution Electrical Construction” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 14 contacts → | ||||
Partial evidence “House of Power Electric has been proudly serving Texas as an exemplary residential electrical contracting firm since 1994.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Partial evidence “TAG Companies LP is an Electrical and Communications Company based out of Houston, Texas, United States.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Partial evidence “Mayfield Electric is a third generation commercial electrical contracting company that has service Houston since 1947.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: electrical maintenance contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names electrical maintenance contractors.
- Partial evidence
- Its own public description names part of electrical maintenance contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name electrical maintenance contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 117 electrical maintenance contractors based in Houston, United States
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Electrical maintenance contractors based in Houston, United States at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 117 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 electrical maintenance contractors, 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 Houston, United States whose own description of what they do matches “electrical maintenance contractors”. 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 electrical maintenance contractors), 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 electrical maintenance contractors, and records with no verified work email. Companies headquartered outside Houston 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, 682 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 16, 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.
Electrical maintenance contractors by metro in the United States
- Electrical maintenance contractors in Houston117
- Electrical maintenance contractors in New York87
- Electrical maintenance contractors in Denver50
- Electrical maintenance contractors in Miami42
- Electrical maintenance contractors in Los Angeles41
- Electrical maintenance contractors in San Antonio39
- Electrical maintenance contractors in Jacksonville35
- Electrical maintenance contractors in Chicago34
- Electrical maintenance contractors in Dallas34
- Electrical maintenance contractors in Phoenix34
- Electrical maintenance contractors in Tampa32
- Electrical maintenance contractors in Austin31
- Electrical maintenance contractors in Charlotte31
- Electrical maintenance contractors in Atlanta29
- Electrical maintenance contractors in Las Vegas29
- Electrical maintenance contractors in San Francisco28
- Electrical maintenance contractors in Orlando27
- Electrical maintenance contractors in Indianapolis26
- Electrical maintenance contractors in Louisville26
- Electrical maintenance contractors in Sacramento26
- Electrical maintenance contractors in Seattle26
- Electrical maintenance contractors in Cincinnati25
- Electrical maintenance contractors in Nashville25
- Electrical maintenance contractors in Springfield25
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 electrical maintenance contractors, 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 electrical maintenance contractors are there based in Houston, United States?
RevenueBase identified 117 electrical maintenance contractors headquartered in Houston, 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?
IES Holdings, headquartered in Houston, tops this list with the largest team on record.
Which city has the most electrical maintenance contractors?
Houston leads with 117 headquartered companies, followed by New York (87) and Denver (50).
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 682 verified decision-maker contacts tracked across these 117 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 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 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.
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