Company lists · Data refreshed September 2026

Top 25 Power systems engineering companies based in Houston, United States

Name: Power systems engineering 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 17, 2026 188 companies tracked

RevenueBase identified 188 power systems engineering companies headquartered in Houston, United States as of September 2026 and tracks 11,510 professional contacts across them, including 4,441 with verified work emails. Houston is the largest hub.

This list covers power systems engineering 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 17, 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 17, 2026 86% judged on-target in blind review

188Companies

11,510Contacts tracked

4,441Verified emails

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The 25 largest power systems engineering companies based in Houston, United States

Ranked by team size

Top 25 of 188 power systems engineering companies based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to power systems engineering 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	Powell	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,561 contacts →
	Strong 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 17, 2026
2	Quanta Services, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	1,783 contacts →
	Indirect evidence “Quanta Services (NYSE: PWR) is the leading specialty contractor with the largest and highly trained skilled workforce in North America, providing fully integrated solutions for…” Source: RevenueBase Database · checked Sep 17, 2026
3	Dashiell Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	940 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 17, 2026
4	Willbros	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	665 contacts →
	Partial evidence “Primoris is a specialty energy infrastructure contractor serving the oil and gas and power industries with offerings that primarily include construction, maintenance and…” Source: RevenueBase Database · checked Sep 17, 2026
5	Wholesale Electric Supply Co. Of Houston, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	544 contacts →
	Indirect evidence “Wholesale Electric Supply Company of Houston, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
6	Saber Power	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 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 17, 2026
7	Resa Power	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	511 contacts →
	Partial evidence “RESA Power is your ONE-STOP for all of your power needs.” Source: RevenueBase Database · checked Sep 17, 2026
8	Fisk Electric CO	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	423 contacts →
	Indirect 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 17, 2026
9	Solaris Energy Infrastructure	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	331 contacts →
	Partial evidence “Solaris Energy Infrastructure (NYSE: SEI) delivers proprietary power generation and distribution solutions, as well as logistics equipment and services, to clients in the data…” Source: RevenueBase Database · checked Sep 17, 2026
10	Gate Energy Project Delivery	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	189 contacts →
	Indirect evidence “GATE Energy, a 100% employee-owned ESOP, provides predictable project delivery services to the energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
11	Trio Electric	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	189 contacts →
	Indirect evidence “Trio Electric was founded in 2003.” Source: RevenueBase Database · checked Sep 17, 2026
12	Expanse Electrical CO	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	188 contacts →
	Partial evidence “Expanse Electrical Company is a premier provider of integrated electrical infrastructure, instrumentation and automation system solutions.” Source: RevenueBase Database · checked Sep 17, 2026
13	IES Electrical	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	166 contacts →
	Indirect 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 17, 2026
14	Kenmor Electric Company	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	152 contacts →
	Indirect evidence “KenMor Electric is recognized for its service and craftsmanship.” Source: RevenueBase Database · checked Sep 17, 2026
15	Hydraquip, INC	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	115 contacts →
	Strong evidence “Founded in 1951 in Houston, Texas, Hydraquip is a leading provider of fluid power, motion control, fluid conveyance, cooling, lubrication, and engineered system solutions.” Source: RevenueBase Database · checked Sep 17, 2026
16	Jomar Electrical Contractors	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	114 contacts →
	Indirect evidence “Jomar Electrical Contractors is a major participant in Texas construction industry.” Source: RevenueBase Database · checked Sep 17, 2026
17	Enterprise Electrical	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	105 contacts →
	Indirect evidence “Electrical Contractor, specializing in design-build projects.” Source: RevenueBase Database · checked Sep 17, 2026
18	C2o Americas	Indirect evidence	Houston, United StatesHQ checked Sep 17, 2026	201-500	94 contacts →
	Indirect evidence “Supporting Global Energy and Infrastructure Projects, C2O Group provides electrical, communications and mechanical services.” Source: RevenueBase Database · checked Sep 17, 2026
19	BELCO	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 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 17, 2026
20	Trugrid	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	81 contacts →
	Partial evidence “TruGrid is a leading engineering, procurement, and construction (EPC) company delivering utility-scale battery energy storage and solar projects across North America.” Source: RevenueBase Database · checked Sep 17, 2026
21	Pieper-Houston Electric	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	74 contacts →
	Indirect 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 17, 2026
22	Wolfenson Electric INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	61 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
23	Power Temp Systems	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	58 contacts →
	Strong evidence “Power Temp Systems (PTS) is a leading US engineering and manufacturer of temporary and permanent power systems delivering customers innovative power distribution solutions…” Source: RevenueBase Database · checked Sep 17, 2026
24	Bayou Electrical Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	56 contacts →
	Indirect evidence “At Bayou Electrical Services, we believe that great projects start with great people.” Source: RevenueBase Database · checked Sep 17, 2026
25	M&i Electric, Llc, A Myers Power Products Company	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	48 contacts →
	Partial evidence “M&I Electric, LLC is a leading provider of power delivery solutions for the global energy industry.” Source: RevenueBase Database · checked Sep 17, 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: power systems engineering 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 power systems engineering companies.
Partial evidence: Its own public description names part of power systems engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name power systems engineering 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 188 power systems engineering companies based in Houston, United States

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Power systems engineering companies based in Houston, United States at a glance

As of Sep 17, 2026

38.6%Verified-email coverage

61.2Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Houston

Sep 17, 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

10001+

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 188 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 power systems engineering 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 “power systems engineering 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 power systems engineering 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 power systems engineering 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, 4,441 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 17, 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.

Power systems engineering 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 power systems engineering 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 power systems engineering companies are there based in Houston, United States?

RevenueBase identified 188 power systems engineering 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?

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

Which city has the most power systems engineering companies?

Houston leads with 188 headquartered companies, followed by New York (67) and Miami (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 4,441 verified decision-maker contacts tracked across these 188 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 17, 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.