Company lists · Data refreshed September 2026

Top 25 Electrical systems integrators worldwide

Name: Electrical systems integrators worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 42,844 companies tracked

RevenueBase identified 42,844 electrical systems integrators worldwide as of September 2026 and tracks 465,419 professional contacts across them, including 129,501 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers electrical systems integrators 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 28, 2026. Country and city lists for electrical systems integrators 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 28, 2026 86% judged on-target in blind review

42,844Companies

465,419Contacts tracked

129,501Verified emails

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The 25 largest electrical systems integrators worldwide

Ranked by team size

Top 25 of 42,844 electrical systems integrators worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to electrical systems integrators: 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	Convergint	Strong evidence	Hoffman Estates, IL, United StatesHQ checked Sep 28, 2026	10001+	5,707 contacts →
	Strong evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 28, 2026
2	M.C. Dean, INC	Indirect evidence	Tysons, VA, United StatesHQ checked Sep 28, 2026	5,001-10,000	2,761 contacts →
	Indirect evidence “M.C.” Source: RevenueBase Database · checked Sep 28, 2026
3	ATS Corporation	Indirect evidence	Cambridge, ON, CanadaHQ checked Sep 28, 2026	5,001-10,000	2,754 contacts →
	Indirect evidence “HELPING ADVANCE THE FUTURE ATS Corporation is an industry-leading automation solutions provider to many of the world's most successful companies.” Source: RevenueBase Database · checked Sep 28, 2026
4	Automated Systems Design, INC	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 28, 2026	n/a	2,678 contacts →
	Partial evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 28, 2026
5	Electrical Components International	Strong evidence	Southfield, MI, United StatesHQ checked Sep 28, 2026	10001+	2,200 contacts →
	Strong evidence “Founded in 1953, Electrical Components International (ECI) is one of the world’s leading suppliers of electrical distribution systems, control box assemblies, and other critical…” Source: RevenueBase Database · checked Sep 28, 2026
6	Omexom	Indirect evidence	Nanterre, FranceHQ checked Sep 28, 2026	5,001-10,000	1,903 contacts →
	Indirect evidence “With today's global energy sector undergoing constant change, Omexom works with its clients in delivering on the promises of the energy transition.” Source: RevenueBase Database · checked Sep 28, 2026
7	IES Communications	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,800 contacts →
	Indirect evidence “IES Communications a division of IES (NASDAQ: IESC) provides each client with a team of highly qualified dedicated professionals that deliver superior quality and cost effective…” Source: RevenueBase Database · checked Sep 28, 2026
8	Icad-Ksa	Strong evidence	Jeddah, Saudi ArabiaHQ checked Sep 28, 2026	1,001-5,000	1,644 contacts →
	Strong evidence “ICAD-KSA is a Master Systems Integrator supporting Saudi Arabia’s giga and mega projects under Vision 2030.” Source: RevenueBase Database · checked Sep 28, 2026
9	Helix Electric	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 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 28, 2026
10	SIBCA	Strong evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 28, 2026	1,001-5,000	1,504 contacts →
	Strong evidence “From humble beginnings in 1977, SIBCA has grown to become a leading Solution Integrator Provider in UAE for Fire Protection and Life Safety Systems, Security Systems, HVAC…” Source: RevenueBase Database · checked Sep 28, 2026
11	ISC Constructors, L.L.C	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,384 contacts →
	Partial evidence “ISC is an industrial engineering and construction company specializing in comprehensive electrical, instrumentation, and controls solutions.” Source: RevenueBase Database · checked Sep 28, 2026
12	J Brand LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	1,245 contacts →
	Partial 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 28, 2026
13	Bergelectric	Partial evidence	Carlsbad, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,182 contacts →
	Partial 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 28, 2026
14	Rovisys	Strong evidence	Aurora, OH, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,159 contacts →
	Strong evidence “As one of the world's largest independent systems integrators, RoviSys delivers comprehensive automation, digital transformation, manufacturing execution (MES), Industrial AI…” Source: RevenueBase Database · checked Sep 28, 2026
15	MJ Quinn	Indirect evidence	Prescot, United KingdomHQ checked Sep 28, 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 28, 2026
16	E2 Optics	Partial evidence	Englewood, CO, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,001 contacts →
	Partial evidence “E2 Optics is an award-winning, woman-owned, low voltage IT solutions integrator.” Source: RevenueBase Database · checked Sep 28, 2026
17	Cotmac	Indirect evidence	Pune, IndiaHQ checked Sep 28, 2026	1,001-5,000	985 contacts →
	Indirect evidence “COTMAC is a part of the 130 year old N A Sirur group of companies.” Source: RevenueBase Database · checked Sep 28, 2026
18	Industrial Electric Mfg. IEM	Strong evidence	Fremont, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	969 contacts →
	Strong evidence “Industrial Electric Mfg.(IEM) is the largest independent full-line manufacturer of electrical distribution equipment and integrated power systems in the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
19	Site Technology	Indirect evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 28, 2026	1,001-5,000	912 contacts →
	Indirect evidence “Delivering innovative, turnkey solutions for 34 years.” Source: RevenueBase Database · checked Sep 28, 2026
20	Prime Controls	Indirect evidence	Lewisville, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	857 contacts →
	Indirect evidence “Prime Controls was established as a Main Automation Contractor to provide customers a sole source solution for Industrial Automation services and products.” Source: RevenueBase Database · checked Sep 28, 2026
21	Paladin Technologies	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	1,001-5,000	805 contacts →
	Strong evidence “With decades of experience and offices coast to coast, Paladin Technologies has emerged as the premier complex systems integrator in North America.” Source: RevenueBase Database · checked Sep 28, 2026
22	Flanders	Indirect evidence	Evansville, IN, United StatesHQ checked Sep 28, 2026	501-1,000	789 contacts →
	Indirect evidence “FLANDERS, Leverage our legacy.” Source: RevenueBase Database · checked Sep 28, 2026
23	Murrelektronik	Partial evidence	Oppenweiler, United StatesHQ checked Sep 28, 2026	1,001-5,000	789 contacts →
	Partial evidence “Murrelektronik is a global leader in decentralized electrical installation and automation technology.” Source: RevenueBase Database · checked Sep 28, 2026
24	Elec-Tech Electrical Contractors	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 28, 2026	n/a	782 contacts →
	Indirect evidence “WELCOME TO OUR WEBSITE!” Source: RevenueBase Database · checked Sep 28, 2026
25	Fredon	Partial evidence	Silverwater, AustraliaHQ checked Sep 28, 2026	1,001-5,000	760 contacts →
	Partial evidence “Fredon is an Australian leader in Electrical, HVAC, Infrastructure and Technology services, backed by 24/7 national maintenance capability.” 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 systems integrators. 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 systems integrators.
Partial evidence: Its own public description names part of electrical systems integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical systems integrators. 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 42,844 electrical systems integrators worldwide

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Electrical systems integrators worldwide at a glance

As of Sep 28, 2026

27.8%Verified-email coverage

10.9Average contacts per company

11-50Median size (employees)

0.7%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

20,207

11-50

15,746

51-200

4,953

201-500

963

501-1,000

269

1,001-5,000

162

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 systems integrators, 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 systems integrators are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “electrical systems integrators”. 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 systems integrators), 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 systems integrators, 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, 129,501 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 systems integrators by location

156 lists · largest first

Every Electrical systems integrators 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 systems integrators, 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 systems integrators are there worldwide?

RevenueBase identified 42,844 electrical systems integrators 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?

Convergint, headquartered in Hoffman Estates, tops this list with the largest team on record.

Which country has the most electrical systems integrators?

The United States leads with 7,787 companies, followed by the United Kingdom (3,480) and Italy (3,144). Every electrical systems integrators list by country and city is linked on this page.

Which city has the most electrical systems integrators?

Sao Paulo leads with 318 headquartered companies, followed by London (287) and Dubai (261).

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 129,501 verified decision-maker contacts tracked across these 42,844 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.

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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.