Company lists · Data refreshed October 2026

Top 25 Electrical installation contractors worldwide

Name: Electrical installation contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 46,574 companies tracked

RevenueBase identified 46,574 company matches for electrical installation contractors worldwide as of October 2026 and tracks 353,826 professional contacts across them, including 79,221 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for electrical installation contractors worldwide, 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 October 12, 2026. Country and city lists for electrical installation contractors follow the table.

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 Oct 12, 2026 How this list was built

46,574Companies

353,826Contacts tracked

79,221Verified emails

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The 25 largest electrical installation contractors worldwide

Ranked by team size

Top 25 of 46,574 company matches for electrical installation contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	IES Holdings	Exact match	Houston, TX, United StatesHQ recorded Oct 12, 2026	5,001-10,000	2,661 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 · Oct 12, 2026 · View company records in RevenueBase
2	Kemp & Lauritzen A S	Exact match	Albertslund, DenmarkHQ recorded Oct 12, 2026	1,001-5,000	1,634 contacts →
	Exact match “Kemp & Lauritzen arbejder med tekniske installationer med stor spændvidde og høj grad af specialisering.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Helix Electric	Exact match	San Diego, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,618 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 · Oct 12, 2026 · View company records in RevenueBase
4	Bravida Danmark A S	Exact match	Brøndby, DenmarkHQ recorded Oct 12, 2026	1,001-5,000	1,342 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Facility Solutions Group	Exact match	Austin, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,294 contacts →
	Exact match “Big jobs, complex systems, tight timelines.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	MJ Quinn	Exact match	Prescot, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	1,287 contacts →
	Exact match “At MJ Quinn we believe in creating great connections, with our customers, our people and our world.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Bergelectric	Exact match	Carlsbad, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,210 contacts →
	Exact match “Since their inception in 1946, Bergelectric has made its mark on the construction industry by providing the highest quality electrical and technology contracting.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Archkey Solutions	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	1,001-5,000	880 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Flanders	Exact match	Evansville, IN, United StatesHQ recorded Oct 12, 2026	501-1,000	828 contacts →
	Exact match “FLANDERS, Leverage our legacy.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Fredon	Exact match	Silverwater, AustraliaHQ recorded Oct 12, 2026	1,001-5,000	821 contacts →
	Exact match “Fredon is an Australian leader in Electrical, HVAC, Infrastructure and Technology services, backed by 24/7 national maintenance capability.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Elec-Tech Electrical Contractors	Exact match	Long Beach, CA, United StatesHQ recorded Oct 12, 2026	n/a	778 contacts →
	Exact match “WELCOME TO OUR WEBSITE!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	SASCO	Exact match	Fullerton, CA, United StatesHQ recorded Oct 12, 2026	501-1,000	759 contacts →
	Exact match “SASCO has been a leader in electrical construction and low-voltage systems technologies for 50 years.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Comfica Soluciones Integrales S.L	Exact match	Fuenlabrada, SpainHQ recorded Oct 12, 2026	201-500	720 contacts →
	Exact match “Empresa especializada en la ingenieria, desarrollo, construccion, instalación, y puesta en marcha de instalaciones de telecomunicaciones, electricidad, señalización, redes de…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Prism Electric	Exact match	Garland, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	717 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 · Oct 12, 2026 · View company records in RevenueBase
15	Baker Group	Exact match	Ankeny, IA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	710 contacts →
	Exact match “Established in 1963, Baker Group is Iowa’s premier full-service specialty contractor-serving commercial, industrial, institutional, and mission-critical markets across the country.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Insyte Instalaciones	Exact match	Getafe, SpainHQ recorded Oct 12, 2026	1,001-5,000	672 contacts →
	Exact match “Insyte Instalaciones inicia su actividad en 1990 como empresa instaladora en el sector eléctrico y de telecomunicaciones.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	M. J. Electric, LLC	Exact match	Iron Mountain, MI, United StatesHQ recorded Oct 12, 2026	1,001-5,000	666 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Cache Valley Electric	Exact match	Logan, UT, United StatesHQ recorded Oct 12, 2026	1,001-5,000	662 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 · Oct 12, 2026 · View company records in RevenueBase
19	HOULE	Exact match	Burnaby, BC, CanadaHQ recorded Oct 12, 2026	501-1,000	654 contacts →
	Exact match “At Houle, we are passionate about bringing communities to life.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Temon Técnica DE Montagens E Construções	Exact match	Sao Paulo, BrazilHQ recorded Oct 12, 2026	1,001-5,000	646 contacts →
	Exact match “Desde 1978 atuando na execução de Instalações Elétricas e Hidráulicas, a Temon conseguiu firmar sua marca nesse mercado com participação em mais de obras por todo Brasil e…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Rogers Electric	Exact match	Alpharetta, GA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	630 contacts →
	Exact match “Rogers Electric is the leading national service provider for all of your construction, rollouts, electrical, and lighting needs.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Alterman, INC	Exact match	Live Oak, TX, United StatesHQ recorded Oct 12, 2026	501-1,000	615 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 · Oct 12, 2026 · View company records in RevenueBase
23	Viking Electric	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 12, 2026	501-1,000	595 contacts →
	Exact match “Viking Electric was founded in 1964 in St.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Resa Power	Exact match	Houston, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	590 contacts →
	Exact match “RESA Power is your ONE-STOP for all of your power needs.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	CSI Electrical Contractors, INC	Exact match	Santa Fe Springs, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	585 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 · Oct 12, 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 installation contractors”. 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 46,574 electrical installation contractors worldwide

See the full list, filter by size, metro and specialty, and access 79,221 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical installation contractors worldwide at a glance

As of Oct 12, 2026

22.4%Verified-email coverage

7.6Average contacts per company

1-10Median size (employees)

0.7%Largest-city concentration · London

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

24,109

11-50

15,963

51-200

4,597

201-500

813

501-1,000

216

1,001-5,000

130

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for electrical installation contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “electrical installation contractors” 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. 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 79,221 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 October 12, 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 installation contractors by location

130 lists · largest first

Every Electrical installation contractors 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 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 installation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical installation contractors are there worldwide?

RevenueBase identified 46,574 company matches for electrical installation contractors worldwide as of October 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?

IES Holdings tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most electrical installation contractors?

The United States leads with 10,122 companies, followed by the United Kingdom (5,412) and Italy (2,649). Every electrical installation contractors list by country and city is linked on this page.

Which city has the most electrical installation contractors?

London leads with 333 company records, followed by Sao Paulo (253) and Houston (153).

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 79,221 professional contacts with verified work emails tracked across these 46,574 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 October 12, 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.