Company lists · Data refreshed September 2026
Top 25 Electrical infrastructure consulting firms based in Houston, United States
RevenueBase identified 365 electrical infrastructure consulting firms headquartered in Houston, United States as of September 2026 and tracks 22,921 professional contacts across them, including 8,716 with verified work emails. Across the United States, Houston is the largest hub for this category.
This list covers electrical infrastructure consulting firms 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 29, 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 infrastructure consulting firms 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,298 contacts → | ||||
Indirect evidence “Welcome to Walter P Moore!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,184 contacts → | ||||
Indirect evidence “Consultants.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,112 contacts → | ||||
Indirect evidence “Ranked No.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 544 contacts → | ||||
Partial evidence “Wholesale Electric Supply Company of Houston, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 538 contacts → | ||||
Strong evidence “Quanta Infrastructure Solutions Group (QISG) is a recognized leader in EPC, design-build, and CMAR services for electrical infrastructure, wastewater and specialty projects…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 524 contacts → | ||||
Partial evidence “Cobb, Fendley & Associates, Inc.(CobbFendley) is a nationally recognized infrastructure solutions firm with a regional focus and a commitment to excellence.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 521 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 511 contacts → | ||||
Indirect evidence “RESA Power is your ONE-STOP for all of your power needs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 461 contacts → | ||||
Partial evidence “Lockwood, Andrews & Newnam, Inc.(LAN) is a full-service consulting firm offering planning, engineering and program management services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 377 contacts → | ||||
Indirect evidence “For decades, E Source has been a trusted partner to utilities navigating an evolving energy landscape.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 310 contacts → | ||||
Indirect evidence “We are A-Team of engineers specializing in the energy industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 260 contacts → | ||||
Indirect evidence “Founded in 1993, Tolunay-Wong Engineers, Inc.(TWE) is ranked as one of the Top 10 largest civil engineering firms in Houston.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 227 contacts → | ||||
Partial evidence “Founded in 1972, DBR has evolved into the premier MEP engineering firm in Texas, providing mechanical, electrical, and plumbing engineering services, as well as building…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 199 contacts → | ||||
Partial evidence “Completing public infrastructure projects comes with tremendous pressure to serve the public while completing each project on-time and on-budget.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 189 contacts → | ||||
Partial evidence “Trio Electric was founded in 2003.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 182 contacts → | ||||
Partial evidence “Founded in 1970, IDS Engineering Group is a Houston-based civil engineering and surveying firm with over five decades of experience delivering infrastructure solutions for public…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 181 contacts → | ||||
Partial evidence “Zentech, Inc, an engineering consulting and software development company, headquartered in Houston, TX, is comprised of experienced professionals specializing in providing…” Source: RevenueBase Database · checked Sep 29, 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 infrastructure consulting firms. 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 infrastructure consulting firms.
- Partial evidence
- Its own public description names part of electrical infrastructure consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name electrical infrastructure consulting firms. 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 365 electrical infrastructure consulting firms based in Houston, United States
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Electrical infrastructure consulting firms based in Houston, United States at a glance
As of Sep 29, 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 365 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 infrastructure consulting firms, 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 infrastructure consulting firms”. 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 infrastructure consulting firms), 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 infrastructure consulting firms, 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, 8,716 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 29, 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 infrastructure consulting firms by metro in the United States
- Electrical infrastructure consulting firms in New York222
- Electrical infrastructure consulting firms in Miami115
- Electrical infrastructure consulting firms in Austin102
- Electrical infrastructure consulting firms in Dallas101
- Electrical infrastructure consulting firms in Chicago99
- Electrical infrastructure consulting firms in Denver98
- Electrical infrastructure consulting firms in Los Angeles92
- Electrical infrastructure consulting firms in Phoenix82
- Electrical infrastructure consulting firms in San Diego80
- Electrical infrastructure consulting firms in Tampa78
- Electrical infrastructure consulting firms in Charlotte76
- Electrical infrastructure consulting firms in Atlanta74
- Electrical infrastructure consulting firms in Orlando74
- Electrical infrastructure consulting firms in San Francisco63
- Electrical infrastructure consulting firms in Jacksonville62
- Electrical infrastructure consulting firms in Portland62
- Electrical infrastructure consulting firms in San Antonio59
- Electrical infrastructure consulting firms in Raleigh54
- Electrical infrastructure consulting firms in Washington53
- Electrical infrastructure consulting firms in Sacramento52
- Electrical infrastructure consulting firms in Seattle50
- Electrical infrastructure consulting firms in Las Vegas49
- Electrical infrastructure consulting firms in Columbus46
- Electrical infrastructure consulting firms in Indianapolis46
- Electrical infrastructure consulting firms in Irvine44
- Electrical infrastructure consulting firms in Nashville44
- Electrical infrastructure consulting firms in Pittsburgh42
- Electrical infrastructure consulting firms in Albuquerque41
- Electrical infrastructure consulting firms in Tulsa41
- Electrical infrastructure consulting firms in Fort Worth38
- Electrical infrastructure consulting firms in San Jose38
- Electrical infrastructure consulting firms in Springfield37
- Electrical infrastructure consulting firms in Louisville36
- Electrical infrastructure consulting firms in Philadelphia36
- Electrical infrastructure consulting firms in Boston35
- Electrical infrastructure consulting firms in Kansas City35
- Electrical infrastructure consulting firms in Salt Lake City35
- Electrical infrastructure consulting firms in Baton Rouge34
- Electrical infrastructure consulting firms in Columbia34
- Electrical infrastructure consulting firms in Madison34
- Electrical infrastructure consulting firms in Oklahoma City34
- Electrical infrastructure consulting firms in Birmingham33
- Electrical infrastructure consulting firms in Minneapolis33
- Electrical infrastructure consulting firms in Plano33
- Electrical infrastructure consulting firms in Cincinnati32
- Electrical infrastructure consulting firms in Oakland31
- Electrical infrastructure consulting firms in Rochester31
- Electrical infrastructure consulting firms in Fort Lauderdale30
- Electrical infrastructure consulting firms in West Palm Beach29
- Electrical infrastructure consulting firms in Chandler28
- Electrical infrastructure consulting firms in Mesa27
- Electrical infrastructure consulting firms in Richmond27
- Electrical infrastructure consulting firms in Alexandria26
- Electrical infrastructure consulting firms in Albany25
- Electrical infrastructure consulting firms in Englewood25
- Electrical infrastructure consulting firms in Honolulu25
- Electrical infrastructure consulting firms in Irving25
- Electrical infrastructure consulting firms in Lexington25
- Electrical infrastructure consulting firms in Wilmington25
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 infrastructure consulting firms, 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 infrastructure consulting firms are there based in Houston, United States?
RevenueBase identified 365 electrical infrastructure consulting firms 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 in the United States has the most electrical infrastructure consulting firms?
Houston leads the United States with 365 headquartered companies, followed by New York (222) and Miami (115).
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 8,716 verified decision-maker contacts tracked across these 365 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 29, 2026.
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Electrical infrastructure consulting firms by geography
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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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