Company lists · Data refreshed September 2026

Top 25 Electrical consulting firms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 10,861 companies tracked

RevenueBase identified 10,861 company matches for electrical consulting firms associated with the United States as of September 2026 and tracks 169,356 professional contacts across them, including 62,691 with verified work emails and 67,514 with mobile numbers. Houston is the largest hub.

This list covers company matches for electrical consulting firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

10,861Companies

169,356Contacts tracked

62,691Verified emails

67,514Mobile numbers

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

The 25 largest electrical consulting firms based in the United States

Ranked by team size

Top 25 of 10,861 company matches for electrical consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Sargent & Lundy	Exact match	Chicago, WY, United StatesHQ recorded Sep 29, 2026	1,001-5,000	4,156 contacts →
	Exact match “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	IES Holdings	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	5,001-10,000	2,567 contacts →
	Exact match “IES Holdings, Inc.(formerly known as Integrated Electrical Services, Inc.) provides electrical contracting services to commercial, industrial, and residential customers in the…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Enercon Services, INC	Exact match	Kennesaw, GA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,865 contacts →
	Exact match “ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Westwood Professional Services	Exact match	Plano, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,661 contacts →
	Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Helix Electric	Exact match	San Diego, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,560 contacts →
	Exact match “Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Outsource	Exact match	El Segundo, CA, United StatesHQ recorded Sep 29, 2026	n/a	1,230 contacts →
	Exact match “Outsource is the largest staffing firm in the nation specializing in the placement of low voltage and electrical talent.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Simpson Gumpertz & Heger SGH	Exact match	Waltham, MA, United StatesHQ recorded Sep 29, 2026	501-1,000	942 contacts →
	Exact match “Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for our clients’ most complex challenges.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Dashiell Corporation	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	940 contacts →
	Exact match “Dashiell is a leading national provider of technical services to the electric utility, power generation, industrial, renewable and energy industries.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Mesa Associates, INC	Exact match	Madison, AL, United StatesHQ recorded Sep 29, 2026	1,001-5,000	897 contacts →
	Exact match “Mesa is a full service engineering, procurement, and construction management firm specializing in providing engineering services to electric utility, heavy industrial, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	501-1,000	859 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	851 contacts →
	Exact match “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Flanders	Exact match	Evansville, IN, United StatesHQ recorded Sep 29, 2026	501-1,000	789 contacts →
	Exact match “FLANDERS, Leverage our legacy.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Elec-Tech Electrical Contractors	Exact match	Long Beach, CA, United StatesHQ recorded Sep 29, 2026	n/a	782 contacts →
	Exact match “WELCOME TO OUR WEBSITE!” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	PAE	Exact match	Portland, OR, United StatesHQ recorded Sep 29, 2026	201-500	744 contacts →
	Exact match “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	EDG	Exact match	Metairie, LA, United StatesHQ recorded Sep 29, 2026	501-1,000	700 contacts →
	Exact match “EDG Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	ME Engineers	Exact match	Golden, CO, United StatesHQ recorded Sep 29, 2026	201-500	696 contacts →
	Exact match “ME Engineers has earned a reputation as a global leader in the design of innovative MEPT systems that bring to life the world's most innovative sports and entertainment venues.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Prism Electric	Exact match	Garland, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	687 contacts →
	Exact match “Our story began in 1994 with a simple vision: Build a company that does things right.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Baker Electric	Exact match	Escondido, CA, United StatesHQ recorded Sep 29, 2026	501-1,000	680 contacts →
	Exact match “Baker Electric is a full-service electrical contractor and energy infrastructure expert headquartered in Escondido, California.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Prime Electric	Exact match	Bellevue, WA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	670 contacts →
	Exact match “For over a quarter century, Prime has been successfully engineering, constructing building, and facilities solutions for our clientele.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Electric Power Systems	Exact match	Maryland Heights, MO, United StatesHQ recorded Sep 29, 2026	501-1,000	653 contacts →
	Exact match “Electric Power Systems is an independent electrical testing & engineering organization.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Cache Valley Electric	Exact match	Logan, UT, United StatesHQ recorded Sep 29, 2026	1,001-5,000	627 contacts →
	Exact match “As one of the nation’s premier electrical contractors, we don’t just provide high-quality services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	M. J. Electric, LLC	Exact match	Iron Mountain, MI, United StatesHQ recorded Sep 29, 2026	1,001-5,000	621 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	PAR Electrical Contractors, LLC	Exact match	Kansas City, MO, United StatesHQ recorded Sep 29, 2026	1,001-5,000	606 contacts →
	Exact match “PAR, a Quanta Services company, offers a full range of construction services for substations, overhead and underground distribution and transmission lines, engineering, design…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Alterman, INC	Exact match	Live Oak, TX, United StatesHQ recorded Sep 29, 2026	501-1,000	597 contacts →
	Exact match “Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	CSI Electrical Contractors, INC	Exact match	Santa Fe Springs, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	560 contacts →
	Exact match “Founded in 1990, CSI has become a leader in highly technical and innovative electrical design and construction.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “electrical consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 10,861 electrical consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 62,691 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical consulting firms based in the United States at a glance

As of Sep 29, 2026

37.0%Verified-email coverage

39.9%Mobile-number coverage

15.6Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

5,217

11-50

3,821

51-200

1,350

201-500

255

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 32.0d

24,5010–30

31,45831–60

1,78161–90

4490–180

232180+

Company record updated

Median 92.0d

00–30

30,56331–60

28,67561–90

93,08790–180

6,802180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “electrical consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 62,691 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Electrical consulting firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “electrical consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical consulting firms are there based in the United States?

RevenueBase identified 10,861 company matches for electrical consulting firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Sargent & Lundy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electrical consulting firms?

Houston leads with 200 company records, followed by New York (185) and Denver (77).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 62,691 professional contacts with verified work emails tracked across these 10,861 companies; direct dials are available where recorded.

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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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 SmartSearch, 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.