Company lists · Data refreshed September 2026

Top 25 Electrical system design companies based in Houston, United States

Name: Electrical system design companies based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 139 companies tracked

RevenueBase identified 139 electrical system design companies headquartered in Houston, United States as of September 2026 and tracks 6,540 professional contacts across them, including 1,874 with verified work emails. Houston is the largest hub.

This list covers electrical system design companies 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 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

139Companies

6,540Contacts tracked

1,874Verified emails

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The 25 largest electrical system design companies based in Houston, United States

Ranked by team size

Top 25 of 139 electrical system design companies based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical system design companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	IES Holdings	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	5,001-10,000	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 19, 2026
2	Saber Power	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	521 contacts →
	Strong evidence “Saber Power Services, a portfolio company of Greenbelt Capital Partners, is a fully integrated electrical power system services firm providing end-to-end solutions across utility…” Source: RevenueBase Database · checked Sep 19, 2026
3	Resa Power	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	511 contacts →
	Indirect evidence “RESA Power is your ONE-STOP for all of your power needs.” Source: RevenueBase Database · checked Sep 19, 2026
4	Fisk Electric CO	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	423 contacts →
	Partial evidence “As a division of one of America's largest construction companies (Tutor Perini Corporation), Fisk Electric Company provides the highest standards of electrical construction…” Source: RevenueBase Database · checked Sep 19, 2026
5	Trio Electric	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	189 contacts →
	Partial evidence “Trio Electric was founded in 2003.” Source: RevenueBase Database · checked Sep 19, 2026
6	Expanse Electrical CO	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	501-1,000	188 contacts →
	Strong evidence “Expanse Electrical Company is a premier provider of integrated electrical infrastructure, instrumentation and automation system solutions.” Source: RevenueBase Database · checked Sep 19, 2026
7	IES Electrical	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	5,001-10,000	166 contacts →
	Partial 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 19, 2026
8	Kenmor Electric Company	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	152 contacts →
	Partial evidence “KenMor Electric is recognized for its service and craftsmanship.” Source: RevenueBase Database · checked Sep 19, 2026
9	Shah Smith & Associates, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	134 contacts →
	Partial evidence “Shah Smith & Associates, Inc.(SSA) is a 120+ employee Mechanical, Electrical, and Plumbing (MEP) consulting engineering firm with offices in Houston, Austin & Dallas.” Source: RevenueBase Database · checked Sep 19, 2026
10	Jomar Electrical Contractors	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	114 contacts →
	Partial evidence “Jomar Electrical Contractors is a major participant in Texas construction industry.” Source: RevenueBase Database · checked Sep 19, 2026
11	Enterprise Electrical	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	105 contacts →
	Strong evidence “Electrical Contractor, specializing in design-build projects.” Source: RevenueBase Database · checked Sep 19, 2026
12	BELCO	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	86 contacts →
	Partial evidence “BELCO (Blanco Electric Ltd Co) is a commercial electrical engineering, contracting and service company.” Source: RevenueBase Database · checked Sep 19, 2026
13	Pieper-Houston Electric	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	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 19, 2026
14	Bayou Electrical Services	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	56 contacts →
	Partial evidence “At Bayou Electrical Services, we believe that great projects start with great people.” Source: RevenueBase Database · checked Sep 19, 2026
15	MEP Green Design & Build, Pllc	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	53 contacts →
	Strong evidence “MEP Green Design & Build, PLLC,(MEPG) is a full-service engineering firm made up of a dedicated team of professionals offering expertise in Mechanical, Electrical, Plumbing and…” Source: RevenueBase Database · checked Sep 19, 2026
16	Energy Architecture, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	11-50	44 contacts →
	Indirect evidence “Energy Architecture is a specialized architecture firm based in Houston, serving clients at the forefront of innovation, research, and discovery.” Source: RevenueBase Database · checked Sep 19, 2026
17	Lakey Electric	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	39 contacts →
	Partial evidence “Lakey Electric is a construction company based out of 5730 Teague Rd, Houston, Texas, United States.” Source: RevenueBase Database · checked Sep 19, 2026
18	Correct Electric INC Houston	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	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 19, 2026
19	Facilities Electric, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	28 contacts →
	Partial evidence “Commercial and Residential Electrical Contractor located in Houston, Texas.” Source: RevenueBase Database · checked Sep 19, 2026
20	Current Power	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	28 contacts →
	Strong evidence “Current Power delivers high-power electrical and automation systems engineered for reliability, scalability, and rapid deployment in data centers and AI-driven facilities.” Source: RevenueBase Database · checked Sep 19, 2026
21	Mccune Electrical Services LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	25 contacts →
	Partial 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 19, 2026
22	VOLTA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	25 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
23	Wayne Electric, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
24	Matrix Structural Engineers	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	11-50	24 contacts →
	Indirect evidence “Matrix Structural Engineers, a multiple award-winning firm, was founded in 1993 in Houston.” Source: RevenueBase Database · checked Sep 19, 2026
25	Industrial Electrical Services	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	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 19, 2026

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 system design companies. 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 system design companies.
Partial evidence: Its own public description names part of electrical system design companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical system design companies. 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 139 electrical system design companies based in Houston, United States

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Electrical system design companies based in Houston, United States at a glance

As of Sep 19, 2026

28.7%Verified-email coverage

47.1Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 139 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 system design companies, 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 system design companies”. 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 system design companies), 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 system design companies, 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, 1,874 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.

Electrical system design companies by metro in the United States

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 system design companies, 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 system design companies are there based in Houston, United States?

RevenueBase identified 139 electrical system design companies 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 system design companies?

Houston leads with 139 headquartered companies, followed by New York (104) and Denver (52).

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 1,874 verified decision-maker contacts tracked across these 139 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.