Company lists · Data refreshed September 2026

Top 25 Facility automation companies worldwide

Name: Facility automation companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 13,332 companies tracked

RevenueBase identified 13,332 facility automation companies worldwide as of September 2026 and tracks 220,600 professional contacts across them, including 76,851 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers facility automation companies 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 16, 2026. Country and city lists for facility automation companies 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 16, 2026 86% judged on-target in blind review

13,332Companies

220,600Contacts tracked

76,851Verified emails

0Mobile numbers

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The 25 largest facility automation companies worldwide

Ranked by team size

Top 25 of 13,332 facility automation companies worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to facility automation companies: 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	Equans Belux	Indirect evidence	Brussels, BelgiumHQ checked Sep 16, 2026	5,001-10,000	5,297 contacts →
	Indirect evidence “What if you could use your talent to contribute to the great challenges of tomorrow?” Source: RevenueBase Database · checked Sep 16, 2026
2	Equans	Indirect evidence	Courbevoie, FranceHQ checked Sep 16, 2026	10001+	5,064 contacts →
	Indirect evidence “Equans, a Bouygues group company, is a world leader in multi-technical services with offices in 20 country hubs.” Source: RevenueBase Database · checked Sep 16, 2026
3	Tyco Simplexgrinnell	Indirect evidence	Cork, IrelandHQ checked Sep 16, 2026	10001+	3,119 contacts →
	Indirect evidence “Tyco is now Johnson Controls, the world leader in fire protection, security, HVAC, building controls and energy storage.” Source: RevenueBase Database · checked Sep 16, 2026
4	Southland Industries	Indirect evidence	Garden Grove, CA, United StatesHQ checked Sep 16, 2026	10001+	2,439 contacts →
	Indirect evidence “As one of the nation's largest building systems experts, Southland Industries provides innovative, practical results for your engineering, construction, service, and energy needs.” Source: RevenueBase Database · checked Sep 16, 2026
5	Acco Engineered Systems	Indirect evidence	Pasadena, CA, United StatesHQ checked Sep 16, 2026	5,001-10,000	2,415 contacts →
	Indirect evidence “Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than mechanical projects.” Source: RevenueBase Database · checked Sep 16, 2026
6	Modern Niagara	Indirect evidence	Kanata, ON, CanadaHQ checked Sep 16, 2026	1,001-5,000	1,556 contacts →
	Indirect evidence “We build for life.” Source: RevenueBase Database · checked Sep 16, 2026
7	Ainsworth INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1,001-5,000	1,405 contacts →
	Indirect evidence “Our customers depend on their buildings, industrial assets, processes, and energy management, to help them meet competitive challenges.” Source: RevenueBase Database · checked Sep 16, 2026
8	Emcor Group, INC	Indirect evidence	Norwalk, CT, United StatesHQ checked Sep 16, 2026	10001+	1,383 contacts →
	Indirect evidence “A Fortune 500® company and a member of the S&P 500, EMCOR Group, Inc.(NYSE: EME) is a leader in mechanical and electrical construction, industrial and energy infrastructure, and…” Source: RevenueBase Database · checked Sep 16, 2026
9	Comfort Systems USA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	10001+	1,330 contacts →
	Indirect evidence “Comfort Systems USA \| Quality People.” Source: RevenueBase Database · checked Sep 16, 2026
10	Bravida Danmark A S	Indirect evidence	Brøndby, DenmarkHQ checked Sep 16, 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 16, 2026
11	Automated Logic Corporation	Partial evidence	Kennesaw, GA, United StatesHQ checked Sep 16, 2026	501-1,000	1,115 contacts →
	Partial evidence “Automated Logic Corporation (ALC) provides innovative building automation and control systems.” Source: RevenueBase Database · checked Sep 16, 2026
12	Plan Group INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 16, 2026	1,001-5,000	1,092 contacts →
	Indirect evidence “Plan Group is a dynamic construction company that believes working together makes anything possible.” Source: RevenueBase Database · checked Sep 16, 2026
13	Mckenney's, INC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,077 contacts →
	Partial evidence “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Source: RevenueBase Database · checked Sep 16, 2026
14	Henderson Engineers	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 16, 2026	501-1,000	1,040 contacts →
	Indirect evidence “Henderson Engineers is a national building systems design firm with a wide array of engineering services and a portfolio representing a full range of markets including business…” Source: RevenueBase Database · checked Sep 16, 2026
15	GSH Group	Partial evidence	Parsippany, NJ, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,017 contacts →
	Partial evidence “GSH Group is a premier provider of global integrated facilities management and building engineering services.” Source: RevenueBase Database · checked Sep 16, 2026
16	Harris	Indirect evidence	St Paul, MN, United StatesHQ checked Sep 16, 2026	1,001-5,000	982 contacts →
	Indirect evidence “Harris is a leading national mechanical contractor specializing in design and engineering, construction, controls, service, manufacturing, conveyors and end-to-end building…” Source: RevenueBase Database · checked Sep 16, 2026
17	Cmta, INC	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 16, 2026	501-1,000	936 contacts →
	Indirect evidence “CMTA is part of Legence, a Nasdaq Listed company.” Source: RevenueBase Database · checked Sep 16, 2026
18	Stellar	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 16, 2026	501-1,000	899 contacts →
	Indirect evidence “Stellar, headquartered in Jacksonville, Florida, is a fully integrated firm focusing on design, engineering, construction, refrigeration, and mechanical and electrical services…” Source: RevenueBase Database · checked Sep 16, 2026
19	Bravida Norge AS	Indirect evidence	Oslo, NorwayHQ checked Sep 16, 2026	1,001-5,000	891 contacts →
	Indirect evidence “Bravida gir bygninger liv.” Source: RevenueBase Database · checked Sep 16, 2026
20	AHERN	Indirect evidence	Fond Du Lac, WI, United StatesHQ checked Sep 16, 2026	1,001-5,000	849 contacts →
	Indirect evidence “Ahern is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and…” Source: RevenueBase Database · checked Sep 16, 2026
21	FMCO	Indirect evidence	Dammam, Saudi ArabiaHQ checked Sep 16, 2026	1,001-5,000	834 contacts →
	Indirect evidence “FMCO is a multidisciplinary company that deals with the coordination of works between buildings, individuals, infrastructure, energy, water and drainage services in order to…” Source: RevenueBase Database · checked Sep 16, 2026
22	Fredon	Indirect evidence	Silverwater, AustraliaHQ checked Sep 16, 2026	1,001-5,000	760 contacts →
	Indirect 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 16, 2026
23	Limbach	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 16, 2026	1,001-5,000	745 contacts →
	Indirect evidence “Limbach is a leading building solutions firm delivering mission critical infrastructure that supports life’s most important moments.” Source: RevenueBase Database · checked Sep 16, 2026
24	Archkey Solutions	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 16, 2026	1,001-5,000	744 contacts →
	Partial 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 16, 2026
25	Kinetics	Indirect evidence	Livermore, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	734 contacts →
	Indirect evidence “Founded in 1973, Kinetics is a full-service process and mechanical contractor specializing in the design and installation of process, mechanical, plumbing and HVAC systems.” Source: RevenueBase Database · checked Sep 16, 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: facility automation companies. 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 facility automation companies.
Partial evidence: Its own public description names part of facility automation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name facility automation companies. 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 13,332 facility automation companies worldwide

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Facility automation companies worldwide at a glance

As of Sep 16, 2026

34.8%Verified-email coverage

16.5Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Sao Paulo

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

5,764

11-50

5,024

51-200

1,796

201-500

403

501-1,000

123

1,001-5,000

5,001-10,000

10001+

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 facility automation companies, 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: 39 countries, largest first: the United States, the United Kingdom, Brazil, India, Italy, Germany, Canada, France, Spain, Australia and 29 more. Country and city lists for facility automation companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “facility automation companies”. 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 facility automation companies), 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 facility automation companies, 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, 76,851 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 16, 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.

Facility automation companies by location

56 lists · largest first

Every Facility automation companies 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 facility automation companies, 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 facility automation companies are there worldwide?

RevenueBase identified 13,332 facility automation companies 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?

Equans Belux, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most facility automation companies?

The United States leads with 3,124 companies, followed by the United Kingdom (1,073) and Brazil (1,042). Every facility automation companies list by country and city is linked on this page.

Which city has the most facility automation companies?

Sao Paulo leads with 231 headquartered companies, followed by Dubai (156) and London (136).

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 76,851 verified decision-maker contacts tracked across these 13,332 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 16, 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.