Company lists · Data refreshed October 2026

Top 25 Electrical contractors for server rooms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 30,815 companies tracked

RevenueBase identified 30,815 company matches for electrical contractors for server rooms worldwide as of October 2026 and tracks 256,231 professional contacts across them, including 64,684 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for electrical contractors for server rooms 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 contractors for server rooms 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

30,815Companies

256,231Contacts tracked

64,684Verified emails

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The 25 largest electrical contractors for server rooms worldwide

Ranked by team size

Top 25 of 30,815 company matches for electrical contractors for server rooms 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	Enercon Services, INC	Exact match	Kennesaw, GA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,980 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 · 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	Kirby Group Engineering	Exact match	Limerick, IrelandHQ recorded Oct 12, 2026	1,001-5,000	1,518 contacts →
	Exact match “Founded in 1964, Kirby is a leading Mechanical and Electrical engineering contractor with operations in Ireland, the UK, mainland Europe and South Africa.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	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
6	J Brand LTD	Exact match	London, United KingdomHQ recorded Oct 12, 2026	n/a	1,256 contacts →
	Exact match “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…” 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	Walker Engineering	Exact match	Irving, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,124 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	MYR Group	Exact match	Thornton, CO, United StatesHQ recorded Oct 12, 2026	5,001-10,000	1,111 contacts →
	Exact match “With roots dating to 1891 and employees, MYR Group Inc.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Suir Engineering	Exact match	Waterford, GermanyHQ recorded Oct 12, 2026	1,001-5,000	908 contacts →
	Exact match “Suir Engineering, a trusted partner in excellence with over 40 years of international experience, specialises in electrical, mechanical, instrumentation and high voltage.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Winthrop Technologies	Exact match	Dublin, IrelandHQ recorded Oct 12, 2026	501-1,000	907 contacts →
	Exact match “Winthrop Technologies is a dedicated data centre delivery partner providing turnkey solutions to our clients, headquartered in Dublin and delivering throughout Europe.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	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
13	Sturgeon Electric Company, INC	Exact match	Henderson, CO, United StatesHQ recorded Oct 12, 2026	1,001-5,000	797 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	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
15	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
16	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
17	Baker Electric	Exact match	Escondido, CA, United StatesHQ recorded Oct 12, 2026	501-1,000	704 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 · Oct 12, 2026 · View company records in RevenueBase
18	Cummings Electrical	Exact match	Fort Worth, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	671 contacts →
	Exact match “Cummings Electrical,(Cummings) is one of the largest providers of electrical contracting services in DFW market.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	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
20	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
21	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
22	PAR Electrical Contractors, LLC	Exact match	Kansas City, MO, United StatesHQ recorded Oct 12, 2026	1,001-5,000	630 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 · Oct 12, 2026 · View company records in RevenueBase
23	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
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 contractors for server rooms”. 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 30,815 electrical contractors for server rooms worldwide

See the full list, filter by size, metro and specialty, and access 64,684 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical contractors for server rooms worldwide at a glance

As of Oct 12, 2026

25.2%Verified-email coverage

8.3Average contacts per company

1-10Median size (employees)

0.9%Largest-city concentration · London

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

16,364

11-50

10,206

51-200

2,932

201-500

542

501-1,000

154

1,001-5,000

103

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 contractors for server rooms are linked below.
What qualifies: Company records worldwide whose business descriptions match “electrical contractors for server rooms” 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 64,684 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 contractors for server rooms by location

90 lists · largest first

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

How many electrical contractors for server rooms are there worldwide?

RevenueBase identified 30,815 company matches for electrical contractors for server rooms 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 contractors for server rooms?

The United States leads with 7,800 companies, followed by the United Kingdom (4,161) and Australia (1,496). Every electrical contractors for server rooms list by country and city is linked on this page.

Which city has the most electrical contractors for server rooms?

London leads with 280 company records, followed by Sao Paulo (158) and Houston (130).

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 64,684 professional contacts with verified work emails tracked across these 30,815 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.