Company lists · Data refreshed September 2026

Top 25 Laboratory hvac maintenance providers based in the United States

Name: Laboratory hvac maintenance providers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 4,933 companies tracked

RevenueBase identified 4,933 laboratory hvac maintenance providers headquartered in the United States as of September 2026 and tracks 39,157 professional contacts across them, including 12,262 with verified work emails. New York is the largest hub.

This list covers laboratory hvac maintenance providers 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 20, 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 20, 2026 86% judged on-target in blind review

4,933Companies

39,157Contacts tracked

12,262Verified emails

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The 25 largest laboratory hvac maintenance providers based in the United States

Ranked by team size

Top 25 of 4,933 laboratory hvac maintenance providers based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to laboratory hvac maintenance providers: 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	Texas Airsystems	Partial evidence	Irving, TX, United StatesHQ checked Sep 20, 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 20, 2026
2	Hoffman & Hoffman, INC	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 20, 2026	1,001-5,000	445 contacts →
	Indirect evidence “Since 1947, Hoffman & Hoffman, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
3	AIR Systems, INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 20, 2026	201-500	348 contacts →
	Indirect evidence “Whether building quality work environments, valuable relationships or community ties, Air Systems never cuts corners.” Source: RevenueBase Database · checked Sep 20, 2026
4	Brady Services	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 20, 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 20, 2026
5	Havtech	Partial evidence	Columbia, MD, United StatesHQ checked Sep 20, 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 20, 2026
6	BFC Solutions	Partial evidence	Nashville, TN, United StatesHQ checked Sep 20, 2026	501-1,000	241 contacts →
	Partial evidence “BFC Solutions is the leader in essential HVAC services for commercial multi-site facilities and chains nationwide.” Source: RevenueBase Database · checked Sep 20, 2026
7	Airtron Heating & AIR Conditioning	Partial evidence	Columbus, OH, United StatesHQ checked Sep 20, 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 20, 2026
8	Energy Air, INC	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 20, 2026	201-500	213 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
9	Star Service INC	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 20, 2026	201-500	201 contacts →
	Partial evidence “Our commitment to the commercial HVAC industry has remained unchanged since we began in 1952.” Source: RevenueBase Database · checked Sep 20, 2026
10	Haynes Mechanical Systems	Indirect evidence	Greenwood Village, CO, United StatesHQ checked Sep 20, 2026	201-500	190 contacts →
	Indirect evidence “Haynes Mechanical Systems has been keeping commercial buildings running strong since 1968.” Source: RevenueBase Database · checked Sep 20, 2026
11	Ambient	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	184 contacts →
	Partial evidence “Ambient is a national collective of HVAC design and implementation firms, each entity esteemed in their respective regions with decades of experience.” Source: RevenueBase Database · checked Sep 20, 2026
12	Emcor Services Aircond	Partial evidence	Smyrna, GA, United StatesHQ checked Sep 20, 2026	201-500	178 contacts →
	Partial evidence “Backed by 80 years of experience, the more than 300 associates at EMCOR Services Aircond design and deliver comprehensive, timely, and cost effective HVAC and building system…” Source: RevenueBase Database · checked Sep 20, 2026
13	American Mechanical Services	Strong evidence	Laurel, MD, United StatesHQ checked Sep 20, 2026	501-1,000	169 contacts →
	Strong evidence “AMS is one of the nation’s leading providers of commercial heating, ventilation, and air conditioning (HVAC) maintenance, repair, replacement, and new equipment installation.” Source: RevenueBase Database · checked Sep 20, 2026
14	ONE Hour Heating & AIR Conditioning	Indirect evidence	Myrtle Beach, SC, United StatesHQ checked Sep 20, 2026	51-200	167 contacts →
	Indirect evidence “We believe in… excellence and heart.” Source: RevenueBase Database · checked Sep 20, 2026
15	Trane AIR Conditioning	Indirect evidence	Us, United StatesHQ checked Sep 20, 2026	1,001-5,000	164 contacts →
	Indirect evidence “Trane, the world leader in creating and sustaining safe, comfortable and energy efficient environments - improves the performance of homes and buildings around the world.” Source: RevenueBase Database · checked Sep 20, 2026
16	CCI Mechanical, INC	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 20, 2026	201-500	133 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
17	Engineered AIR Balance	Indirect evidence	Richardson, TX, United StatesHQ checked Sep 20, 2026	51-200	132 contacts →
	Indirect evidence “Engineered Air Balance is the leading authority in total system balancing, building commissioning, and critical environment certifications at the forefront of industry standards…” Source: RevenueBase Database · checked Sep 20, 2026
18	Energy International Corporation	Strong evidence	Bingham Farms, MI, United StatesHQ checked Sep 20, 2026	51-200	132 contacts →
	Strong evidence “Energy International Corporation (EIC) is a leader in the design, supply, installation, operation and maintenance of HVAC and electro-mechanical equipment to the construction…” Source: RevenueBase Database · checked Sep 20, 2026
19	Donnelly Mechanical Corporation	Strong evidence	Queens Village, NY, United StatesHQ checked Sep 20, 2026	201-500	130 contacts →
	Strong evidence “Donnelly Mechanical is New York City’s premier provider of innovative commercial HVAC service, maintenance and construction.” Source: RevenueBase Database · checked Sep 20, 2026
20	Addison Hvac	Partial evidence	Orlando, FL, United StatesHQ checked Sep 20, 2026	201-500	127 contacts →
	Partial evidence “Addison is a leading supplier of HVAC cooling and dehumidification equipment for commercial and industrial applications with extensive experience in treating ventilation air.” Source: RevenueBase Database · checked Sep 20, 2026
21	Environmental Systems, INC	Indirect evidence	Taunton, MA, United StatesHQ checked Sep 20, 2026	51-200	124 contacts →
	Indirect evidence “Environmental Systems, Inc.(ESI) is a premier mechanical contractor & engineering firm headquartered in Taunton, Massachusetts, with offices in Nashua, New Hampshire, and Warwick…” Source: RevenueBase Database · checked Sep 20, 2026
22	Engineering Excellence	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 20, 2026	51-200	121 contacts →
	Indirect evidence “National HVACR Solutions.” Source: RevenueBase Database · checked Sep 20, 2026
23	The K Company, INC	Indirect evidence	Akron, OH, United StatesHQ checked Sep 20, 2026	201-500	120 contacts →
	Indirect evidence “Since 1972, The K Company has been setting the standard in commercial, residential and industrial heating, air conditioning, ventilation and refrigeration systems.” Source: RevenueBase Database · checked Sep 20, 2026
24	DMG Corporation	Partial evidence	Orange, CA, United StatesHQ checked Sep 20, 2026	201-500	119 contacts →
	Partial evidence “For over three decades, DMG Corporation has distinguished itself as a premier independent sales agency specializing in top-tier HVAC equipment.” Source: RevenueBase Database · checked Sep 20, 2026
25	AIR Control Systems	Partial evidence	Ontario, CA, United StatesHQ checked Sep 20, 2026	201-500	117 contacts →
	Partial evidence “Your Comfort Is Our Passion™ For decades, there has been one name in commercial HVAC synonymous with quality, expertise, and the highest levels of customer service: Air Control…” Source: RevenueBase Database · checked Sep 20, 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: laboratory hvac maintenance providers. 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 laboratory hvac maintenance providers.
Partial evidence: Its own public description names part of laboratory hvac maintenance providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name laboratory hvac maintenance providers. 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 4,933 laboratory hvac maintenance providers based in the United States

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Laboratory hvac maintenance providers based in the United States at a glance

As of Sep 20, 2026

31.3%Verified-email coverage

7.9Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,392

11-50

1,900

51-200

481

201-500

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 4,933 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 laboratory hvac maintenance providers, 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 “laboratory hvac maintenance providers”. 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 laboratory hvac maintenance providers), 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 laboratory hvac maintenance providers, 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, 12,262 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 20, 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.

Laboratory hvac maintenance providers by metro

Laboratory hvac maintenance providers in New York80
Laboratory hvac maintenance providers in Houston79
Laboratory hvac maintenance providers in San Antonio38
Laboratory hvac maintenance providers in Austin33
Laboratory hvac maintenance providers in Dallas31
Laboratory hvac maintenance providers in Jacksonville30
Laboratory hvac maintenance providers in Tampa28
Laboratory hvac maintenance providers in Charlotte26
Laboratory hvac maintenance providers in Phoenix26
Laboratory hvac maintenance providers in Las Vegas25
Laboratory hvac maintenance providers in Miami25

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 laboratory hvac maintenance providers, 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 laboratory hvac maintenance providers are there based in the United States?

RevenueBase identified 4,933 laboratory hvac maintenance providers 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?

Texas Airsystems, headquartered in Irving, tops this list with the largest team on record.

Which city has the most laboratory hvac maintenance providers?

New York leads with 80 headquartered companies, followed by Houston (79) and San Antonio (38).

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 12,262 verified decision-maker contacts tracked across these 4,933 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 20, 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.