Company lists · Data refreshed September 2026

Top 25 Electrical grid consulting firms based in Houston, United States

Name: Electrical grid consulting firms based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 123 companies tracked

RevenueBase identified 123 electrical grid consulting firms headquartered in Houston, United States as of September 2026 and tracks 6,997 professional contacts across them, including 2,430 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers electrical grid 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 28, 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 28, 2026 86% judged on-target in blind review

123Companies

6,997Contacts tracked

2,430Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest electrical grid consulting firms based in Houston, United States

Ranked by team size

Top 25 of 123 electrical grid consulting firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to electrical grid consulting firms: 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 28, 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 28, 2026
2	Dashiell Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
3	Saber Power	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	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 28, 2026
4	Resa Power	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
5	Fisk Electric CO	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
6	E Source	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	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 28, 2026
7	Trio Electric	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	189 contacts →
	Partial evidence “Trio Electric was founded in 2003.” Source: RevenueBase Database · checked Sep 28, 2026
8	Expanse Electrical CO	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
9	IES Electrical	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
10	Kenmor Electric Company	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	152 contacts →
	Partial evidence “KenMor Electric is recognized for its service and craftsmanship.” Source: RevenueBase Database · checked Sep 28, 2026
11	Ceis Critical Energy Infrastructure Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	145 contacts →
	Indirect evidence “Critical Energy Infrastructure Services (CEIS) is a nationally recognized leader in delivering strategic project solutions that support America’s energy infrastructure and…” Source: RevenueBase Database · checked Sep 28, 2026
12	Jomar Electrical Contractors	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	114 contacts →
	Partial evidence “Jomar Electrical Contractors is a major participant in Texas construction industry.” Source: RevenueBase Database · checked Sep 28, 2026
13	Zero-Emission Grid, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “Welcome to Zero-Emission Grid, LLC (ZEG)- Where Expertise Meets Ambition.” Source: RevenueBase Database · checked Sep 28, 2026
14	Mccune Electrical Services LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
15	Colwell Electric	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	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 28, 2026
16	Industrial Electrical Services	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
17	Acclaim Energy	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “For 19 years, Acclaim Energy has been successfully advising Hospitals, Businesses, Government entities, and Schools to address their most critical energy issues such as…” Source: RevenueBase Database · checked Sep 28, 2026
18	CFI Companies, INC	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	21 contacts →
	Strong evidence “Established in 2012, CFI Companies is a consulting engineering firm that provides mechanical, electrical, plumbing and low voltage engineering design services as well as…” Source: RevenueBase Database · checked Sep 28, 2026
19	Symbio Energy Partners	Indirect evidence	Houston, United StatesHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
20	E4a Solutions, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “E4A Solutions delivers comprehensive power plant and substation services, specializing in high-voltage EPC projects, equipment installation, and advanced maintenance programs.” Source: RevenueBase Database · checked Sep 28, 2026
21	Equisales Associates	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “Equisales provides domestic and international utilities, power plants and industrial customers with time-critical high voltage transformers and substation equipment while…” Source: RevenueBase Database · checked Sep 28, 2026
22	Britain Electric	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	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 28, 2026
23	Hargrave Electric	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	17 contacts →
	Partial evidence “Hargrave Electric is the premier design build electrical contractor located in Houston, TX.” Source: RevenueBase Database · checked Sep 28, 2026
24	Henry Power Electric LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	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 28, 2026
25	Swartz Electric	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	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 28, 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 grid 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 grid consulting firms.
Partial evidence: Its own public description names part of electrical grid 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 grid 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 123 electrical grid consulting firms based in Houston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,430 reachable decision-makers.

Free signup · no credit card

View the full list →

Electrical grid consulting firms based in Houston, United States at a glance

As of Sep 28, 2026

34.7%Verified-email coverage

56.9Average contacts per company

11-50Median size (employees)

Sep 28, 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 123 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 grid 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 grid 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 grid 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 grid 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, 2,430 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 28, 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 grid consulting firms 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 grid 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 grid consulting firms are there based in Houston, United States?

RevenueBase identified 123 electrical grid 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 grid consulting firms?

Houston leads the United States with 123 headquartered companies, followed by New York (69) and San Diego (42).

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 2,430 verified decision-maker contacts tracked across these 123 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 123 electrical grid consulting firms based in Houston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Electrical grid consulting firms by geography

Browse the directory

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.