Company lists · Data refreshed September 2026

Top 25 Building automation systems integrators worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 18,656 companies tracked

RevenueBase identified 18,656 building automation systems integrators worldwide as of September 2026 and tracks 297,184 professional contacts across them, including 85,178 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers building automation 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 27, 2026. Country and city lists for building automation 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 27, 2026 86% judged on-target in blind review

18,656Companies

297,184Contacts tracked

85,178Verified emails

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The 25 largest building automation systems integrators worldwide

Ranked by team size

Top 25 of 18,656 building automation systems integrators worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to building automation 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	Johnson Controls	Strong evidence	Cork, IrelandHQ checked Sep 27, 2026	10001+	52,736 contacts →
	Strong evidence “Johnson Controls is a global leader in thermal management, mission-critical building systems, energy efficiency and decarbonization.” Source: RevenueBase Database · checked Sep 27, 2026
2	ATS Corporation	Partial evidence	Cambridge, ON, CanadaHQ checked Sep 27, 2026	5,001-10,000	2,754 contacts →
	Partial 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 27, 2026
3	Croonwolter&dros	Indirect evidence	Rotterdam, NetherlandsHQ checked Sep 27, 2026	1,001-5,000	2,515 contacts →
	Indirect evidence “For more than 140 years Croonwolter & dros has been in the vanguard of new developments.” Source: RevenueBase Database · checked Sep 27, 2026
4	Southland Industries	Strong evidence	Garden Grove, CA, United StatesHQ checked Sep 27, 2026	10001+	2,439 contacts →
	Strong 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 27, 2026
5	Mitsubishi Electric Automation, INC	Partial evidence	Vernon Hills, IL, United StatesHQ checked Sep 27, 2026	n/a	2,012 contacts →
	Partial evidence “The sole mission of Mitsubishi Electric Automation Americas, is to support the factory automation needs of North and Latin American customers with combined sales, marketing…” Source: RevenueBase Database · checked Sep 27, 2026
6	Omron Automation	Partial evidence	Hoffman Estates, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,847 contacts →
	Partial evidence “Our business is automation, and we envision a future in which people can do more, try more, and be more.” Source: RevenueBase Database · checked Sep 27, 2026
7	Yokogawa India Limited	Indirect evidence	Bangalore, IndiaHQ checked Sep 27, 2026	1,001-5,000	1,803 contacts →
	Indirect evidence “Yokogawa India Limited, incorporated in 1987, is an affiliate of Yokogawa Electric Corporation, Japan, having strong marketing and service network across India.” Source: RevenueBase Database · checked Sep 27, 2026
8	Modern Niagara	Indirect evidence	Kanata, ON, CanadaHQ checked Sep 27, 2026	1,001-5,000	1,556 contacts →
	Indirect evidence “We build for life.” Source: RevenueBase Database · checked Sep 27, 2026
9	JR Automation	Strong evidence	Holland, MI, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,386 contacts →
	Strong evidence “JR Automation is a leading global integrator of custom automated systems for manufacturing and distribution environments around the world.” Source: RevenueBase Database · checked Sep 27, 2026
10	Bravida Danmark A S	Indirect evidence	Brøndby, DenmarkHQ checked Sep 27, 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 27, 2026
11	Rovisys	Strong evidence	Aurora, OH, United StatesHQ checked Sep 27, 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 27, 2026
12	Automated Logic Corporation	Strong evidence	Kennesaw, GA, United StatesHQ checked Sep 27, 2026	501-1,000	1,115 contacts →
	Strong evidence “Automated Logic Corporation (ALC) provides innovative building automation and control systems.” Source: RevenueBase Database · checked Sep 27, 2026
13	Mckenney's, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,077 contacts →
	Indirect evidence “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Source: RevenueBase Database · checked Sep 27, 2026
14	Cotmac	Indirect evidence	Pune, IndiaHQ checked Sep 27, 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 27, 2026
15	Convergix Automation Solutions	Partial evidence	Auburn Hills, MI, United StatesHQ checked Sep 27, 2026	501-1,000	942 contacts →
	Partial evidence “Convergix Automation Solutions designs, engineers and integrates hardware and software to automate its customers' operations.” Source: RevenueBase Database · checked Sep 27, 2026
16	Greatech Technology Berhad	Partial evidence	Bayan Lepas, MalaysiaHQ checked Sep 27, 2026	1,001-5,000	916 contacts →
	Partial evidence “In response to growing markets and increasing competition, Greatech offers automation solutions in various industries in order to meet customer productivity challenges, improve on…” Source: RevenueBase Database · checked Sep 27, 2026
17	Bravida Norge AS	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	1,001-5,000	891 contacts →
	Indirect evidence “Bravida gir bygninger liv.” Source: RevenueBase Database · checked Sep 27, 2026
18	Climatec, LLC	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 27, 2026	1,001-5,000	863 contacts →
	Partial evidence “Climatec has been making buildings safer, more comfortable and efficient for over 40 years.” Source: RevenueBase Database · checked Sep 27, 2026
19	Prime Controls	Partial evidence	Lewisville, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	857 contacts →
	Partial 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 27, 2026
20	Awc, INC	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 27, 2026	501-1,000	848 contacts →
	Partial evidence “We love our customers and are committed to providing Better Automation and Controls Solutions, Products, Engineering, Services and Support to them.” Source: RevenueBase Database · checked Sep 27, 2026
21	Ipcs Global	Partial evidence	Kochi, IndiaHQ checked Sep 27, 2026	n/a	767 contacts →
	Partial evidence “IPCS through its research oriented and progressive approach offers perfect automation solutions to a vast array of industries which include but are not confined to software…” Source: RevenueBase Database · checked Sep 27, 2026
22	Linc Facility Services	Strong evidence	United StatesHQ checked Sep 27, 2026	1,001-5,000	712 contacts →
	Strong evidence “The Linc Group is an award-winning provider of integrated facilities management, HVAC and building systems services, lighting and electrical solutions, and other support services…” Source: RevenueBase Database · checked Sep 27, 2026
23	Bahri & Mazroei Technical Systems Company LLC Bmts	Strong evidence	Dubai, United Arab EmiratesHQ checked Sep 27, 2026	1,001-5,000	710 contacts →
	Strong evidence “Bahri & Mazroei Technical Systems Co.(BMTS) is a regional system integrator in Gulf region since many decades with has its origin since 1968 through Bahri & Mazroei Trading…” Source: RevenueBase Database · checked Sep 27, 2026
24	Albireo Energy	Partial evidence	Edison, NJ, United StatesHQ checked Sep 27, 2026	1,001-5,000	669 contacts →
	Partial evidence “Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Source: RevenueBase Database · checked Sep 27, 2026
25	Kropman	Indirect evidence	Nijmegen, NetherlandsHQ checked Sep 27, 2026	501-1,000	623 contacts →
	Indirect evidence “Kropman ontwerpt, bouwt en onderhoudt en beheert gebouwgebonden installaties.” Source: RevenueBase Database · checked Sep 27, 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: building automation 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 building automation systems integrators.
Partial evidence: Its own public description names part of building automation systems integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building automation 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 18,656 building automation systems integrators worldwide

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Building automation systems integrators worldwide at a glance

As of Sep 27, 2026

28.7%Verified-email coverage

15.9Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Sao Paulo

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

8,879

11-50

6,942

51-200

2,102

201-500

400

501-1,000

110

1,001-5,000

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 building automation 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 building automation systems integrators are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “building automation 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 building automation 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 building automation 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, 85,178 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 27, 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.

Building automation systems integrators by location

63 lists · largest first

Every Building automation 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 building automation 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 building automation systems integrators are there worldwide?

RevenueBase identified 18,656 building automation 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?

Johnson Controls, headquartered in Milwaukee, tops this list with the largest team on record.

Which country has the most building automation systems integrators?

The United States leads with 3,243 companies, followed by India (1,275) and Brazil (1,083). Every building automation systems integrators list by country and city is linked on this page.

Which city has the most building automation systems integrators?

Sao Paulo leads with 187 headquartered companies, followed by Pune (162) and Dubai (146).

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 85,178 verified decision-maker contacts tracked across these 18,656 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 27, 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.