Company lists · Data refreshed September 2026

Top 25 Electrical contracting firms worldwide

Name: Electrical contracting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 47,747 companies tracked

RevenueBase identified 47,747 electrical contracting firms worldwide as of September 2026 and tracks 407,912 professional contacts across them, including 96,257 with verified work emails. The United States is the largest market and London the largest hub.

This list covers electrical contracting firms worldwide, 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. Country and city lists for electrical contracting firms follow the table.

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

47,747Companies

407,912Contacts tracked

96,257Verified emails

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The 25 largest electrical contracting firms worldwide

Ranked by team size

Top 25 of 47,747 electrical contracting firms worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical contracting 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	Rosendin	Partial evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	10001+	4,437 contacts →
	Partial evidence “Since 1919, Rosendin has created a reputation for building quality electrical and communications installations, building value for clients, and building people.” Source: RevenueBase Database · checked Sep 19, 2026
2	MMR Group	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 19, 2026	5,001-10,000	3,186 contacts →
	Indirect evidence “At MMR we believe that no matter how much you achieve, you should never forget where you came from.” Source: RevenueBase Database · checked Sep 19, 2026
3	IES Holdings	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	5,001-10,000	2,567 contacts →
	Strong 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
4	Engelmig Energia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	5,001-10,000	1,818 contacts →
	Indirect evidence “A Engelmig foi fundada em 1985 com o objetivo de prestar serviços de engenharia em redes de distribuição de energia elétrica.” Source: RevenueBase Database · checked Sep 19, 2026
5	Quanta Services, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 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 19, 2026
6	Helix Electric	Partial evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,560 contacts →
	Partial evidence “Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.” Source: RevenueBase Database · checked Sep 19, 2026
7	Kirby Group Engineering	Partial evidence	Limerick, IrelandHQ checked Sep 19, 2026	1,001-5,000	1,486 contacts →
	Partial evidence “Founded in 1964, Kirby is a leading Mechanical and Electrical engineering contractor with operations in Ireland, the UK, mainland Europe and South Africa.” Source: RevenueBase Database · checked Sep 19, 2026
8	Bravida Danmark A S	Indirect evidence	Brøndby, DenmarkHQ checked Sep 19, 2026	1,001-5,000	1,298 contacts →
	Indirect evidence “Bravida Danmark er blandt landets største tekniske installations- og servicevirksomheder med over medarbejdere i byer landet over, og vi er en arbejdsplads, der har plads til alle.” Source: RevenueBase Database · checked Sep 19, 2026
9	Facility Solutions Group	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,276 contacts →
	Indirect evidence “Big jobs, complex systems, tight timelines.” Source: RevenueBase Database · checked Sep 19, 2026
10	J Brand LTD	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	n/a	1,245 contacts →
	Strong evidence “Originally set up in 1933 by Joseph Brand as an electrical contracting and repair business in Margaret Street W1, the company today still operates today with the same guiding…” Source: RevenueBase Database · checked Sep 19, 2026
11	Bergelectric	Strong evidence	Carlsbad, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,182 contacts →
	Strong evidence “Since their inception in 1946, Bergelectric has made its mark on the construction industry by providing the highest quality electrical and technology contracting.” Source: RevenueBase Database · checked Sep 19, 2026
12	MJ Quinn	Indirect evidence	Prescot, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,126 contacts →
	Indirect evidence “At MJ Quinn we believe in creating great connections, with our customers, our people and our world.” Source: RevenueBase Database · checked Sep 19, 2026
13	MYR Group	Indirect evidence	Thornton, CO, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,092 contacts →
	Indirect evidence “With roots dating to 1891 and 8,500+ employees, MYR Group Inc.” Source: RevenueBase Database · checked Sep 19, 2026
14	Walker Engineering	Partial evidence	Irving, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,049 contacts →
	Partial evidence “Walker Engineering has a solid reputation in the industry that is based on over 45 years of delivering top notch electrical work for a fair and competitive price.” Source: RevenueBase Database · checked Sep 19, 2026
15	Anel Group	Partial evidence	İstanbul, TürkiyeHQ checked Sep 19, 2026	1,001-5,000	867 contacts →
	Partial evidence “Founded by Rıdvan Çelikel in 1986, Anel is a global contracting company with its expertise in MEP systems in large scale and challenging projects.” Source: RevenueBase Database · checked Sep 19, 2026
16	Loja Elétrica Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	1,001-5,000	827 contacts →
	Indirect evidence “Empresa genuinamente mineira, a Loja Elétrica está no mercado desde 1947 e hoje conta com 9 filiais e 6 lojas “in company”.” Source: RevenueBase Database · checked Sep 19, 2026
17	Sturgeon Electric Company, INC	Indirect evidence	Henderson, CO, United StatesHQ checked Sep 19, 2026	1,001-5,000	806 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
18	Flanders	Indirect evidence	Evansville, IN, United StatesHQ checked Sep 19, 2026	501-1,000	789 contacts →
	Indirect evidence “FLANDERS, Leverage our legacy.” Source: RevenueBase Database · checked Sep 19, 2026
19	Elec-Tech Electrical Contractors	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 19, 2026	n/a	782 contacts →
	Indirect evidence “WELCOME TO OUR WEBSITE!” Source: RevenueBase Database · checked Sep 19, 2026
20	BK Gulf LLC	Partial evidence	Dubai, United Arab EmiratesHQ checked Sep 19, 2026	5,001-10,000	774 contacts →
	Partial evidence “Established in 1978, BK Gulf LLC is a leading contractor in electrical, mechanical, instrumentation and building services within the UAE & Middle East market.” Source: RevenueBase Database · checked Sep 19, 2026
21	PT Jaya Teknik Indonesia	Indirect evidence	Jakarta, IndonesiaHQ checked Sep 19, 2026	201-500	774 contacts →
	Indirect evidence “Pt.” Source: RevenueBase Database · checked Sep 19, 2026
22	Archkey Solutions	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 19, 2026	1,001-5,000	744 contacts →
	Indirect evidence “ArchKey, one of the largest privately held specialty trade installation and facilities services companies in the United States, is a leader in designing, building, and maintaining…” Source: RevenueBase Database · checked Sep 19, 2026
23	SEL Construction Corporation	Partial evidence	Loomis, CA, United StatesHQ checked Sep 19, 2026	n/a	722 contacts →
	Partial evidence “Experienced commercial contractor specializing in renewable energy, electrical, and roofing projects for privately-owned buildings as well as state/local government buildings in…” Source: RevenueBase Database · checked Sep 19, 2026
24	Sonepar España	Indirect evidence	Leganés, SpainHQ checked Sep 19, 2026	1,001-5,000	715 contacts →
	Indirect evidence “Sonepar Ibérica ofrece a los profesionales la gama más completa de productos y soluciones para los sectores residencial, industrial y terciario.” Source: RevenueBase Database · checked Sep 19, 2026
25	Prism Electric	Indirect evidence	Garland, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	687 contacts →
	Indirect evidence “Our story began in 1994 with a simple vision: Build a company that does things right.” 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 contracting 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 contracting firms.
Partial evidence: Its own public description names part of electrical contracting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical contracting 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 47,747 electrical contracting firms worldwide

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Electrical contracting firms worldwide at a glance

As of Sep 19, 2026

23.6%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

0.7%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

24,235

11-50

16,069

51-200

5,047

201-500

1,037

501-1,000

308

1,001-5,000

198

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 contracting 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.
Coverage: Every country. Country and city lists for electrical contracting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “electrical contracting 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 contracting 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 contracting firms, and records with no verified work email.
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, 96,257 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 contracting firms by location

122 lists · largest first

Every Electrical contracting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 contracting 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 contracting firms are there worldwide?

RevenueBase identified 47,747 electrical contracting firms worldwide 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?

Rosendin, headquartered in San Jose, tops this list with the largest team on record.

Which country has the most electrical contracting firms?

The United States leads with 11,688 companies, followed by the United Kingdom (5,591) and Australia (2,282). Every electrical contracting firms list by country and city is linked on this page.

Which city has the most electrical contracting firms?

London leads with 356 headquartered companies, followed by Sao Paulo (248) and Houston (175).

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 96,257 verified decision-maker contacts tracked across these 47,747 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.