Company lists · Data refreshed September 2026

Top 25 Hvac automation companies based in the United States

Name: Hvac automation companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 5,218 companies tracked

RevenueBase identified 5,218 hvac automation companies headquartered in the United States as of September 2026 and tracks 82,046 professional contacts across them, including 30,882 with verified work emails. Houston is the largest hub.

This list covers hvac automation companies 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 16, 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 16, 2026 86% judged on-target in blind review

5,218Companies

82,046Contacts tracked

30,882Verified emails

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The 25 largest hvac automation companies based in the United States

Ranked by team size

Top 25 of 5,218 hvac automation companies based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to hvac 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	Daikin Applied Americas	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 16, 2026	10001+	4,204 contacts →
	Indirect 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 16, 2026
2	Goodman AIR Conditioning & Heating	Indirect evidence	Waller, TX, United StatesHQ checked Sep 16, 2026	10001+	2,375 contacts →
	Indirect evidence “Since 1982, Goodman Manufacturing has had one goal: provide customers with reliable, high-quality, energy-efficient, and affordable indoor comfort products.” Source: RevenueBase Database · checked Sep 16, 2026
3	Carrier Enterprise	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,891 contacts →
	Indirect evidence “Carrier Enterprise is a joint venture between Watsco, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
4	Aaon, INC	Partial evidence	Tulsa, OK, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,208 contacts →
	Partial evidence “Driving the industry forward through the design, manufacturing, and rigorous testing of premium HVAC equipment.” Source: RevenueBase Database · checked Sep 16, 2026
5	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
6	Mckenney's, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 16, 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 16, 2026
7	R.E. Michel Company, LLC	Indirect evidence	Glen Burnie, MD, United StatesHQ checked Sep 16, 2026	1,001-5,000	873 contacts →
	Indirect evidence “The R.E.” Source: RevenueBase Database · checked Sep 16, 2026
8	Albireo Energy	Indirect evidence	Edison, NJ, United StatesHQ checked Sep 16, 2026	1,001-5,000	669 contacts →
	Indirect 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 16, 2026
9	Rovisys Building Technologies	Partial evidence	Aurora, OH, United StatesHQ checked Sep 16, 2026	1,001-5,000	547 contacts →
	Partial evidence “As part of the RoviSys family of companies, we deliver vendor independent building automation, electrical power management, facility monitoring, and systems integration solutions…” Source: RevenueBase Database · checked Sep 16, 2026
10	Deem, LLC	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 16, 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 16, 2026
11	ONE Hour Heating & AIR Conditioning	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 16, 2026	1,001-5,000	526 contacts →
	Indirect evidence “When homeowners want a reliable heater or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning.” Source: RevenueBase Database · checked Sep 16, 2026
12	Texas Airsystems	Partial evidence	Irving, TX, United StatesHQ checked Sep 16, 2026	201-500	523 contacts →
	Partial 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 16, 2026
13	Mingledorff's	Indirect evidence	Norcross, GA, United StatesHQ checked Sep 16, 2026	501-1,000	483 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
14	Aprilaire	Indirect evidence	Madison, WI, United StatesHQ checked Sep 16, 2026	501-1,000	474 contacts →
	Indirect evidence “Headquartered in Madison, Wisconsin with production facilities in both Madison and Poynette, AprilAire has been providing a variety of Indoor Air Quality solutions and technology…” Source: RevenueBase Database · checked Sep 16, 2026
15	Long Building Technologies	Indirect evidence	Littleton, CO, United StatesHQ checked Sep 16, 2026	501-1,000	453 contacts →
	Indirect evidence “Since 1965, LONG has been in the business of building performance; making them automated, efficient, green, and safe.” Source: RevenueBase Database · checked Sep 16, 2026
16	Mestek, INC	Indirect evidence	Westfield, MA, United StatesHQ checked Sep 16, 2026	501-1,000	449 contacts →
	Indirect evidence “Today, Mestek is a family of over 45 specialty manufacturers providing heating, ventilating, and air conditioning products, coil handling equipment, extruded aluminum products…” Source: RevenueBase Database · checked Sep 16, 2026
17	Hoffman & Hoffman, INC	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 16, 2026	1,001-5,000	445 contacts →
	Indirect evidence “Since 1947, Hoffman & Hoffman, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
18	Allied AIR	Partial evidence	West Columbia, SC, United StatesHQ checked Sep 16, 2026	501-1,000	419 contacts →
	Partial evidence “Allied Air does more than make HVAC equipment.” Source: RevenueBase Database · checked Sep 16, 2026
19	Sanden International, Usa, INC	Indirect evidence	Wylie, TX, United StatesHQ checked Sep 16, 2026	501-1,000	414 contacts →
	Indirect evidence “At Sanden International (U.S.A.), Inc, our business today is building automotive air conditioning compressors.” Source: RevenueBase Database · checked Sep 16, 2026
20	Brady Services	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 16, 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 16, 2026
21	Havtech	Partial evidence	Columbia, MD, United StatesHQ checked Sep 16, 2026	201-500	333 contacts →
	Partial evidence “Havtech delivers innovative commercial and industrial HVAC solutions across Maryland, Washington, D.C, Virginia, Pennsylvania, and West Virginia.” Source: RevenueBase Database · checked Sep 16, 2026
22	Habegger Corporation	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 16, 2026	501-1,000	330 contacts →
	Partial evidence “The Habegger Corporation \| Complete HVAC Solutions since 1952.” Source: RevenueBase Database · checked Sep 16, 2026
23	Gustave A. Larson	Indirect evidence	Pewaukee, WI, United StatesHQ checked Sep 16, 2026	201-500	324 contacts →
	Indirect evidence “Gustave A.” Source: RevenueBase Database · checked Sep 16, 2026
24	Boland	Partial evidence	Gaithersburg, MD, United StatesHQ checked Sep 16, 2026	201-500	323 contacts →
	Partial evidence “Boland is the leading commercial HVAC systems, services, and building energy solutions provider in the DC metro area.” Source: RevenueBase Database · checked Sep 16, 2026
25	Sunbelt Controls	Partial evidence	Pleasanton, CA, United StatesHQ checked Sep 16, 2026	201-500	322 contacts →
	Partial evidence “Sunbelt Controls is a leading full-service building automation contractor for new construction and retrofit projects in the Western United States.” 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: hvac 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 hvac automation companies.
Partial evidence: Its own public description names part of hvac automation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hvac 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 5,218 hvac automation companies based in the United States

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Hvac automation companies based in the United States at a glance

As of Sep 16, 2026

37.6%Verified-email coverage

15.7Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

2,293

11-50

1,952

51-200

691

201-500

135

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 5,218 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 hvac 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “hvac 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 hvac 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 hvac automation companies, 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, 30,882 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.

Hvac automation companies 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 hvac 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 hvac automation companies are there based in the United States?

RevenueBase identified 5,218 hvac automation companies 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 hvac automation companies?

Houston leads with 87 headquartered companies, followed by New York (86) and Miami (46).

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 30,882 verified decision-maker contacts tracked across these 5,218 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.