Company lists · Data refreshed September 2026

Top 25 Air handling unit contractors worldwide

Name: Air handling unit contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 16,560 companies tracked

RevenueBase identified 16,560 air handling unit contractors worldwide as of September 2026 and tracks 146,988 professional contacts across them, including 41,924 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers air handling unit contractors 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 30, 2026. Country and city lists for air handling unit contractors 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 30, 2026 86% judged on-target in blind review

16,560Companies

146,988Contacts tracked

41,924Verified emails

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The 25 largest air handling unit contractors worldwide

Ranked by team size

Top 25 of 16,560 air handling unit contractors worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to air handling unit contractors: 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	Daikin Applied Americas	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 30, 2026	10001+	4,204 contacts →
	Partial evidence “Daikin Applied delivers superior air quality and energy efficiency to every solution with innovation in advanced technology, IoT, and next generation compressors.” Source: RevenueBase Database · checked Sep 30, 2026
2	Acco Engineered Systems	Indirect evidence	Pasadena, CA, United StatesHQ checked Sep 30, 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 30, 2026
3	Bravida Danmark A S	Indirect evidence	Brøndby, DenmarkHQ checked Sep 30, 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 30, 2026
4	Mckenney's, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 30, 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 30, 2026
5	Ventec S.A	Indirect evidence	Casablanca, MoroccoHQ checked Sep 30, 2026	1,001-5,000	959 contacts →
	Indirect evidence “La Société Ventec a été créée au Maroc en 1949 par Monsieur Albert MARQUET Président Directeur Général de Ventec en France.” Source: RevenueBase Database · checked Sep 30, 2026
6	MCI SAS	Indirect evidence	Carquefou, FranceHQ checked Sep 30, 2026	1,001-5,000	943 contacts →
	Indirect evidence “Spécialiste du froid et la climatisation depuis 60 ans, MCI s'engage à vous offrir un grand choix de solutions et de services parfaitement adaptés à vos exigences.” Source: RevenueBase Database · checked Sep 30, 2026
7	Cmta, INC	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 30, 2026	501-1,000	936 contacts →
	Indirect evidence “CMTA is part of Legence, a Nasdaq Listed company.” Source: RevenueBase Database · checked Sep 30, 2026
8	Bravida Norge AS	Indirect evidence	Oslo, NorwayHQ checked Sep 30, 2026	1,001-5,000	891 contacts →
	Indirect evidence “Bravida gir bygninger liv.” Source: RevenueBase Database · checked Sep 30, 2026
9	HTS Engineering	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 30, 2026	1,001-5,000	714 contacts →
	Indirect evidence “Your success is our success.” Source: RevenueBase Database · checked Sep 30, 2026
10	Deem, LLC	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 30, 2026	1,001-5,000	539 contacts →
	Indirect evidence “DEEM, LLC is a mechanical and electrical company centrally located in Fishers, Indiana with satellite offices throughout the Midwest down to the southeastern United States.” Source: RevenueBase Database · checked Sep 30, 2026
11	Texas Airsystems	Indirect evidence	Irving, TX, United StatesHQ checked Sep 30, 2026	201-500	523 contacts →
	Indirect evidence “In business for over 45 years, Texas AirSystems has grown to be recognized as one of the premier partners for commercial HVAC solutions in Texas, boasting over 500 associates…” Source: RevenueBase Database · checked Sep 30, 2026
12	CIAT	Indirect evidence	FranceHQ checked Sep 30, 2026	1,001-5,000	490 contacts →
	Indirect evidence “CIAT has over 90 years of experience as one of Europes leading names in the HVAC industry for creating innovative, durable and high-performing products, with a speciality on…” Source: RevenueBase Database · checked Sep 30, 2026
13	Wolf Gmbh	Strong evidence	Mainburg, GermanyHQ checked Sep 30, 2026	1,001-5,000	484 contacts →
	Strong evidence “As a leading supplier of heating and air handling systems, we are perfectly in tune with you.” Source: RevenueBase Database · checked Sep 30, 2026
14	Hoffman & Hoffman, INC	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 30, 2026	1,001-5,000	445 contacts →
	Indirect evidence “Since 1947, Hoffman & Hoffman, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
15	VTS Group	Strong evidence	LuxembourgHQ checked Sep 30, 2026	501-1,000	440 contacts →
	Strong evidence “Welcome to VTS VTS Group is a leading supplier of air handling units and heating equipment.” Source: RevenueBase Database · checked Sep 30, 2026
16	Heating Cooling	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 30, 2026	501-1,000	436 contacts →
	Indirect evidence “Desde 1974, a Heating & Cooling atua no segmento de engenharia de instalação de Sistemas de Ar-Condicionado, Ventilação e Exaustão Mecânica, com mais de 2.500 projetos executados.” Source: RevenueBase Database · checked Sep 30, 2026
17	Clivet SPA	Partial evidence	Feltre, ItalyHQ checked Sep 30, 2026	501-1,000	418 contacts →
	Partial evidence “Clivet is a leading European company that designs, produces and distributes systems for air conditioning, heating, fresh air and purification with a wide range of solutions for…” Source: RevenueBase Database · checked Sep 30, 2026
18	John W. Danforth Company	Indirect evidence	Tonawanda, NY, United StatesHQ checked Sep 30, 2026	501-1,000	415 contacts →
	Indirect evidence “We are powered by the best people in the industry.” Source: RevenueBase Database · checked Sep 30, 2026
19	Carmichael Engineering LTD	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 30, 2026	501-1,000	400 contacts →
	Indirect evidence “Dedicated to Excellence For over a century, Carmichael has been delivering expert solutions in HVAC, industrial refrigeration, automation, combustion, energy, and scientific…” Source: RevenueBase Database · checked Sep 30, 2026
20	Daikin Brasil	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 30, 2026	201-500	391 contacts →
	Indirect evidence “Somos uma empresa de origem japonesa que preza por credibilidade e excelência absoluta e que tem por vocação, trazer a você, o que há de melhor na tecnologia em ar condicionado.” Source: RevenueBase Database · checked Sep 30, 2026
21	ABN Klimatisatie	Indirect evidence	Munsterbilzen, BelgiumHQ checked Sep 30, 2026	n/a	364 contacts →
	Indirect evidence “ABN Klimatisatie, uw snelste klimatisatiepartner!” Source: RevenueBase Database · checked Sep 30, 2026
22	AIR Systems, INC	Partial evidence	San Jose, CA, United StatesHQ checked Sep 30, 2026	201-500	348 contacts →
	Partial evidence “Whether building quality work environments, valuable relationships or community ties, Air Systems never cuts corners.” Source: RevenueBase Database · checked Sep 30, 2026
23	United Mechanical	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 30, 2026	201-500	346 contacts →
	Indirect evidence “United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…” Source: RevenueBase Database · checked Sep 30, 2026
24	Brady Services	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 30, 2026	501-1,000	340 contacts →
	Indirect evidence “Since 1962, Brady has been committed to delivering innovative, sustainable building solutions that drive long-term success for our customers.” Source: RevenueBase Database · checked Sep 30, 2026
25	Havtech	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 30, 2026	201-500	333 contacts →
	Indirect evidence “Havtech delivers innovative commercial and industrial HVAC solutions across Maryland, Washington, D.C, Virginia, Pennsylvania, and West Virginia.” Source: RevenueBase Database · checked Sep 30, 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: air handling unit contractors. 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 air handling unit contractors.
Partial evidence: Its own public description names part of air handling unit contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name air handling unit contractors. 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 16,560 air handling unit contractors worldwide

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Air handling unit contractors worldwide at a glance

As of Sep 30, 2026

28.5%Verified-email coverage

8.9Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Sao Paulo

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

7,420

11-50

6,480

51-200

1,904

201-500

378

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among air handling unit contractors, 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 air handling unit contractors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “air handling unit contractors”. 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 air handling unit contractors), 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 air handling unit contractors, 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, 41,924 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 30, 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.

Air handling unit contractors by location

54 lists · largest first

Every Air handling unit 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 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 air handling unit contractors, 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 air handling unit contractors are there worldwide?

RevenueBase identified 16,560 air handling unit contractors 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?

Daikin Applied Americas, headquartered in Minneapolis, tops this list with the largest team on record.

Which country has the most air handling unit contractors?

The United States leads with 6,064 companies, followed by the United Kingdom (918) and France (739). Every air handling unit contractors list by country and city is linked on this page.

Which city has the most air handling unit contractors?

Sao Paulo leads with 185 headquartered companies, followed by London (96) and Houston (88).

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 41,924 verified decision-maker contacts tracked across these 16,560 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 30, 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.