Company lists · Data refreshed October 2026

Top 25 Building automation system contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 7,286 companies tracked

RevenueBase identified 7,286 company matches for building automation system contractors worldwide as of October 2026 and tracks 89,950 professional contacts across them, including 29,024 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for building automation system 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 9, 2026. Country and city lists for building automation system 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 9, 2026 How this list was built

7,286Companies

89,950Contacts tracked

29,024Verified emails

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The 25 largest building automation system contractors worldwide

Ranked by team size

Top 25 of 7,286 company matches for building automation system contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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	Modern Niagara	Exact match	Kanata, ON, CanadaHQ recorded Oct 9, 2026	1,001-5,000	1,585 contacts →
	Exact match “We build for life.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	Bravida Danmark A S	Exact match	Brøndby, DenmarkHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase
3	Automated Logic Corporation	Exact match	Kennesaw, GA, United StatesHQ recorded Oct 9, 2026	501-1,000	1,181 contacts →
	Exact match “Automated Logic Corporation (ALC) provides innovative building automation and control systems.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Mckenney's, INC	Exact match	Atlanta, GA, United StatesHQ recorded Oct 9, 2026	1,001-5,000	1,088 contacts →
	Exact match “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Bravida Norge AS	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	1,001-5,000	898 contacts →
	Exact match “Bravida gir bygninger liv.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Bahri & Mazroei Technical Systems Company LLC Bmts	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 9, 2026	1,001-5,000	690 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Albireo Energy	Exact match	Edison, NJ, United StatesHQ recorded Oct 9, 2026	1,001-5,000	658 contacts →
	Exact match “Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Rovisys Building Technologies	Exact match	Aurora, OH, United StatesHQ recorded Oct 9, 2026	1,001-5,000	646 contacts →
	Exact match “As part of the RoviSys family of companies, we deliver vendor independent building automation, electrical power management, facility monitoring, and systems integration solutions…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Nordomatic	Exact match	Stockholm, SwedenHQ recorded Oct 9, 2026	1,001-5,000	572 contacts →
	Exact match “Nordomatic is a global impact pioneer in smart buildings, helping you optimize, simplify, and future-proof your operations.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	Avanceon Middle East & South Asia	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 9, 2026	201-500	548 contacts →
	Exact match “Avanceon is the leading provider of automation, control systems integration, proprietary energy management solutions and support services.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Airmaster	Exact match	Scoresby, AustraliaHQ recorded Oct 9, 2026	1,001-5,000	507 contacts →
	Exact match “At Airmaster, our goal is to lead the way in integrated building services, combining HVAC & R, building automation, electrical, and fire systems to create smart buildings that are…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Long Building Technologies	Exact match	Littleton, CO, United StatesHQ recorded Oct 9, 2026	501-1,000	484 contacts →
	Exact match “Since 1965, LONG has been in the business of building performance; making them automated, efficient, green, and safe.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	NIKO	Exact match	Sint Niklaas, BelgiumHQ recorded Oct 9, 2026	501-1,000	477 contacts →
	Exact match “Niko designs electr(on)ic solutions to enhance buildings to better suit the needs of the people who live and work in them.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Hoffman & Hoffman, INC	Exact match	Greensboro, NC, United StatesHQ recorded Oct 9, 2026	1,001-5,000	458 contacts →
	Exact match “Since 1947, Hoffman & Hoffman, Inc.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	ABC	Exact match	Mumbai, IndiaHQ recorded Oct 9, 2026	n/a	402 contacts →
	Exact match “Abc is an industrial automation company based out of 35, Chandivali VIllage Off.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Evio Private Limited	Exact match	Mumbai, IndiaHQ recorded Oct 9, 2026	201-500	362 contacts →
	Exact match “Our Services & Solutions Electrical Turnkey Solutions Industrial (Factory / Process) Automation Solutions (Siemens) Building (IBMS) Automation Solutions Lighting Automation…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	AIR Systems, INC	Exact match	San Jose, CA, United StatesHQ recorded Oct 9, 2026	201-500	359 contacts →
	Exact match “Whether building quality work environments, valuable relationships or community ties, Air Systems never cuts corners.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Brady Services	Exact match	Greensboro, NC, United StatesHQ recorded Oct 9, 2026	501-1,000	355 contacts →
	Exact match “Since 1962, Brady has been committed to delivering innovative, sustainable building solutions that drive long-term success for our customers.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Regulvar INC	Exact match	Laval, QC, CanadaHQ recorded Oct 9, 2026	501-1,000	348 contacts →
	Exact match “Founded in 1974, Regulvar is a private company operating nationally.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Havtech	Exact match	Columbia, MD, United StatesHQ recorded Oct 9, 2026	201-500	342 contacts →
	Exact match “Havtech delivers innovative commercial and industrial HVAC solutions across Maryland, Washington, D.C, Virginia, Pennsylvania, and West Virginia.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Sunbelt Controls	Exact match	Pleasanton, CA, United StatesHQ recorded Oct 9, 2026	201-500	338 contacts →
	Exact match “Sunbelt Controls is a leading full-service building automation contractor for new construction and retrofit projects in the Western United States.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Delta Controls	Exact match	Surrey, BC, CanadaHQ recorded Oct 9, 2026	201-500	332 contacts →
	Exact match “Delta Controls is a global leader in Building Automation Systems (BAS), with over 300 distributors, and many thousand of installations in more than 80 countries.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Ermco, INC	Exact match	Greenwood, IN, United StatesHQ recorded Oct 9, 2026	201-500	314 contacts →
	Exact match “From our beginning in 1962 as a small electrical maintenance company in downtown Indianapolis with a staff of three, ERMCO, Inc.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	ATS Automation, INC	Exact match	Renton, WA, United StatesHQ recorded Oct 9, 2026	201-500	306 contacts →
	Exact match “ATS, established in 1986, specializes in custom engineered and installed Building Automation Systems control solutions for buildings’ mechanical and electrical systems, allowing…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	VAE Group	Exact match	Darra, AustraliaHQ recorded Oct 9, 2026	201-500	291 contacts →
	Exact match “VAE engineers, constructs and manages Smarter HVAC Solutions.” Recorded in the RevenueBase company graph · Oct 9, 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 “building automation system 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 7,286 building automation system contractors worldwide

See the full list, filter by size, metro and specialty, and access 29,024 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building automation system contractors worldwide at a glance

As of Oct 9, 2026

32.3%Verified-email coverage

12.3Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Sao Paulo

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

3,418

11-50

2,693

51-200

860

201-500

175

501-1,000

1,001-5,000

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 building automation system contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “building automation system 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 29,024 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 9, 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.

Building automation system contractors by location

36 lists · largest first

Every Building automation system 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 “building automation system contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building automation system contractors are there worldwide?

RevenueBase identified 7,286 company matches for building automation system 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?

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

Which country has the most building automation system contractors?

The United States leads with 1,282 companies, followed by the United Kingdom (405) and Brazil (380). Every building automation system contractors list by country and city is linked on this page.

Which city has the most building automation system contractors?

Sao Paulo leads with 102 company records, followed by Dubai (61) and London (54).

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 29,024 professional contacts with verified work emails tracked across these 7,286 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 9, 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.