Company lists · Data refreshed September 2026

Top 25 Air handling unit contractors based in the United States

Name: Air handling unit contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 6,064 companies tracked

RevenueBase identified 6,064 air handling unit contractors headquartered in the United States as of September 2026 and tracks 67,862 professional contacts across them, including 24,754 with verified work emails. Houston is the largest hub.

This list covers air handling unit contractors headquartered in the United States, 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.

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

6,064Companies

67,862Contacts tracked

24,754Verified emails

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The 25 largest air handling unit contractors based in the United States

Ranked by team size

Top 25 of 6,064 air handling unit contractors based in the United States, 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	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
4	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
5	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
6	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
7	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
8	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
9	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
10	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
11	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
12	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
13	Boland	Indirect evidence	Gaithersburg, MD, United StatesHQ checked Sep 30, 2026	201-500	323 contacts →
	Indirect evidence “Boland is the leading commercial HVAC systems, services, and building energy solutions provider in the DC metro area.” Source: RevenueBase Database · checked Sep 30, 2026
14	Entech Sales & Service, LLC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 30, 2026	201-500	316 contacts →
	Indirect evidence “Entech consists of several cohesive business groups working together to provide services for commercial and industrial buildings.” Source: RevenueBase Database · checked Sep 30, 2026
15	Nailor Industries, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	1,001-5,000	316 contacts →
	Indirect evidence “Nailor Industries, Inc, operating under Nailor International Group, is a privately held, family-owned company with headquarters located in Houston, TX.” Source: RevenueBase Database · checked Sep 30, 2026
16	Hobbs & Associates, INC	Indirect evidence	Norfolk, VA, United StatesHQ checked Sep 30, 2026	201-500	260 contacts →
	Indirect evidence “Hobbs & Associates is a leading independent HVAC provider serving Virginia, Washington DC, Maryland, and Tennessee, with partners across the Southeast.” Source: RevenueBase Database · checked Sep 30, 2026
17	The Arcticom Group	Indirect evidence	Walnut Creek, CA, United StatesHQ checked Sep 30, 2026	1,001-5,000	259 contacts →
	Indirect evidence “At The Arcticom Group (TAG), our family of best-in-market operating companies delivers the highest-quality service and customer experience in commercial and industrial HVACR.” Source: RevenueBase Database · checked Sep 30, 2026
18	BFC Solutions	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 30, 2026	501-1,000	241 contacts →
	Indirect evidence “BFC Solutions is the leader in essential HVAC services for commercial multi-site facilities and chains nationwide.” Source: RevenueBase Database · checked Sep 30, 2026
19	Tolin Mechanical Systems	Indirect evidence	Denver, CO, United StatesHQ checked Sep 30, 2026	201-500	220 contacts →
	Indirect evidence “Tolin Mechanical is a Leading Energy & Commercial HVAC Services Company.” Source: RevenueBase Database · checked Sep 30, 2026
20	Texas AIR Products	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 30, 2026	51-200	219 contacts →
	Partial evidence “Texas Air Products is a full service suppler for the commercial construction industry with offices in Austin, San Antonio, Corpus Christi and the Rio Grande Valley.” Source: RevenueBase Database · checked Sep 30, 2026
21	Holaday-Parks, INC	Partial evidence	Tukwila, WA, United StatesHQ checked Sep 30, 2026	201-500	218 contacts →
	Partial evidence “As one of the largest full service mechanical contractors headquartered in the Pacific Northwest, Holaday Parks has grown well beyond Seattle.” Source: RevenueBase Database · checked Sep 30, 2026
22	Critchfield Mechanical, INC	Partial evidence	San Jose, CA, United StatesHQ checked Sep 30, 2026	201-500	218 contacts →
	Partial evidence “Since 1977, Critchfield Mechanical, Inc.(CMI) has been one of the finest mechanical contractors in California, specializing in the design, fabrication and installation of heating…” Source: RevenueBase Database · checked Sep 30, 2026
23	Trane Midwest	Partial evidence	Fenton, MO, United StatesHQ checked Sep 30, 2026	201-500	216 contacts →
	Partial evidence “Trane® is a world leader in air conditioning systems, services and solutions.” Source: RevenueBase Database · checked Sep 30, 2026
24	Airtron Heating & AIR Conditioning	Partial evidence	Columbus, OH, United StatesHQ checked Sep 30, 2026	1,001-5,000	214 contacts →
	Partial evidence “Airtron has developed itself into one of the leading heating, ventilation, and air conditioning (HVAC) providers.” Source: RevenueBase Database · checked Sep 30, 2026
25	Pueblo Mechanical & Controls	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 30, 2026	501-1,000	214 contacts →
	Indirect evidence “Pueblo was founded in Arizona to achieve sustained and profitable growth by providing services that consistently satisfy the needs and expectations of its customers.” 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 6,064 air handling unit contractors based in the United States

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Air handling unit contractors based in the United States at a glance

As of Sep 30, 2026

36.5%Verified-email coverage

11.2Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

2,706

11-50

2,387

51-200

737

201-500

118

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 6,064 companies.

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.
What qualifies: Companies headquartered in the United States 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. Companies headquartered outside United States are excluded even when they keep an office there.
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, 24,754 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 metro

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 based in the United States?

RevenueBase identified 6,064 air handling unit contractors headquartered in the United States 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 city has the most air handling unit contractors?

Houston leads with 88 headquartered companies, followed by New York (79) and Phoenix (43).

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 24,754 verified decision-maker contacts tracked across these 6,064 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.