Company lists · Data refreshed November 2026

Top 25 Hvac automation services based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 10,880 companies tracked

RevenueBase identified 10,880 company matches for hvac automation services associated with the United States as of November 2026 and tracks 139,018 professional contacts across them, including 51,689 with verified work emails. Houston is the largest hub.

This list covers company matches for hvac automation services associated with the United States, 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 November 6, 2026.

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 Nov 6, 2026 How this list was built

10,880Companies

139,018Contacts tracked

51,689Verified emails

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The 25 largest hvac automation services based in the United States

Ranked by team size

Top 25 of 10,880 company matches for hvac automation services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Daikin Applied Americas	Exact match	Minneapolis, MN, United StatesHQ recorded Nov 6, 2026	10001+	4,396 contacts →
	Exact match “Daikin Applied delivers superior air quality and energy efficiency to every solution with innovation in advanced technology, IoT, and next generation compressors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Comfort Systems USA	Exact match	Houston, IN, United StatesHQ recorded Nov 6, 2026	10001+	1,407 contacts →
	Exact match “Comfort Systems USA \| Quality People.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	AAON	Exact match	Tulsa, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,350 contacts →
	Exact match “Driving the industry forward through the design, manufacturing, and rigorous testing of premium HVAC equipment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Rovisys	Exact match	Aurora, OH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,293 contacts →
	Exact match “As one of the world's largest independent systems integrators, RoviSys delivers comprehensive automation, digital transformation, manufacturing execution (MES), Industrial AI…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Automated Logic Corporation	Exact match	Kennesaw, NJ, United StatesHQ recorded Nov 6, 2026	501-1,000	1,215 contacts →
	Exact match “Automated Logic Corporation (ALC) provides innovative building automation and control systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Mckenney's, INC	Exact match	Atlanta, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,143 contacts →
	Exact match “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Cmta, INC	Exact match	Louisville, TN, United StatesHQ recorded Nov 6, 2026	501-1,000	1,049 contacts →
	Exact match “CMTA is part of Legence, a Nasdaq Listed company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Prime Controls	Exact match	Lewisville, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	967 contacts →
	Exact match “Prime Controls was established as a Main Automation Contractor (MAC) to provide customers with a sole-source solution for industrial automation, controls, and I&C construction.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Awc, INC	Exact match	Baton Rouge, LA, United StatesHQ recorded Nov 6, 2026	501-1,000	884 contacts →
	Exact match “We love our customers and are committed to providing Better Automation and Controls Solutions, Products, Engineering, Services and Support to them.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Bell And Howell	Exact match	Durham, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	813 contacts →
	Exact match “Bell and Howell is a technology-driven leader in Automation Services and Automation Solutions helping businesses maximize operational efficiency and deliver exceptional customer…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Coolsys	Exact match	Brea, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	741 contacts →
	Exact match “CoolSys solves the most complex challenges in refrigeration, air conditioning, heating, engineering, and energy management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Baker Group	Exact match	Ankeny, IA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	731 contacts →
	Exact match “Established in 1963, Baker Group is Iowa’s premier full-service specialty contractor-serving commercial, industrial, institutional, and mission-critical markets across the country.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Albireo Energy	Exact match	Edison, NJ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	672 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 · Nov 6, 2026 · View company records in RevenueBase
14	Rovisys Building Technologies	Exact match	Aurora, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	665 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 · Nov 6, 2026 · View company records in RevenueBase
15	F.E. Moran Group Of Companies	Exact match	Northbrook, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	606 contacts →
	Exact match “At F.E.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Texas Airsystems	Exact match	Irving, TX, United StatesHQ recorded Nov 6, 2026	201-500	583 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	ONE Hour Heating & AIR Conditioning	Exact match	Phoenix, AZ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	573 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Deem, LLC	Exact match	Indianapolis, IN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	553 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	MSS Solutions, LLC	Exact match	Charlotte, NC, United StatesHQ recorded Nov 6, 2026	501-1,000	504 contacts →
	Exact match “Since 1996, MSS has made thousands of facilities more efficient, comfortable, secure and reliable for owners, operators and occupiers across the Carolinas and throughout North…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Ardent Services, LLC	Exact match	Covington, LA, United StatesHQ recorded Nov 6, 2026	51-200	497 contacts →
	Exact match “Ardent Services, LLC (Ardent) is a leading provider of high-quality power, control, process-automation, and electrical and instrumentation (E&I) services for process industries…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Long Building Technologies	Exact match	Littleton, UT, United StatesHQ recorded Nov 6, 2026	501-1,000	496 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 · Nov 6, 2026 · View company records in RevenueBase
22	Hoffman & Hoffman, INC	Exact match	Greensboro, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	469 contacts →
	Exact match “Since 1947, Hoffman & Hoffman, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Mestek, INC	Exact match	Westfield, MA, United StatesHQ recorded Nov 6, 2026	501-1,000	461 contacts →
	Exact match “Today, Mestek is a family of over 45 specialty manufacturers providing heating, ventilating, and air conditioning products, coil handling equipment, extruded aluminum products…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	UMC	Exact match	Lynnwood, WA, United StatesHQ recorded Nov 6, 2026	201-500	444 contacts →
	Exact match “UMC helps clients solve the complex challenges of built environments and their systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	John W. Danforth Company	Exact match	Tonawanda, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	420 contacts →
	Exact match “We are powered by the best people in the industry.” Recorded in the RevenueBase company graph · Nov 6, 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 “hvac automation services”. 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 10,880 hvac automation services based in the United States

See the full list, filter by size, metro and specialty, and access 51,689 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hvac automation services based in the United States at a glance

As of Nov 6, 2026

37.2%Verified-email coverage

12.8Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

4,969

11-50

4,244

51-200

1,206

201-500

201

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 10,880 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “hvac automation services” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 51,689 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 November 6, 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.

Hvac automation services by metro

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 “hvac automation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac automation services are there based in the United States?

RevenueBase identified 10,880 company matches for hvac automation services associated with the United States as of November 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?

Daikin Applied Americas tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hvac automation services?

Houston leads with 180 company records, followed by New York (127) and Dallas (76).

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 51,689 professional contacts with verified work emails tracked across these 10,880 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 November 6, 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.