Company lists · Data refreshed November 2026

Top 25 Cleanroom hvac services based in the United States

RevenueBase identified 4,588 company matches for cleanroom hvac services associated with the United States as of November 2026 and tracks 38,343 professional contacts across them, including 11,985 with verified work emails. Houston is the largest hub.

This list covers company matches for cleanroom hvac 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
4,588Companies
38,343Contacts tracked
11,985Verified emails
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The 25 largest cleanroom hvac services based in the United States

Ranked by team size
Top 25 of 4,588 company matches for cleanroom hvac 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIrving, TX, United StatesHQ recorded Nov 6, 2026201-500583 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
2Exact matchGreensboro, TN, United StatesHQ recorded Nov 6, 20261,001-5,000469 contacts →

Exact match

“Since 1947, Hoffman & Hoffman, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBrea, CA, United StatesHQ recorded Nov 6, 20261,001-5,000434 contacts →

Exact match

“For up-to-date information, please see the CoolSys profile page.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchTonawanda, NY, United StatesHQ recorded Nov 6, 2026501-1,000420 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
5Exact matchMesa, AZ, United StatesHQ recorded Nov 6, 2026501-1,000397 contacts →

Exact match

“Shaping the Future of Sustainable Climate Control At XNRGY Climate Systems, we are on a mission to revolutionize climate control with a focus on sustainability and innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 2026201-500364 contacts →

Exact match

“Whether building quality work environments, valuable relationships or community ties, Air Systems never cuts corners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNashville, TN, United StatesHQ recorded Nov 6, 2026501-1,000258 contacts →

Exact match

“BFC Solutions is the leader in essential HVAC services for commercial multi-site facilities and chains nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchColumbus, TX, United StatesHQ recorded Nov 6, 20261,001-5,000249 contacts →

Exact match

“Airtron has developed itself into one of the leading heating, ventilation, and air conditioning (HVAC) providers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPhoenix, AZ, United StatesHQ recorded Nov 6, 2026501-1,000228 contacts →

Exact match

“Pueblo was founded in Arizona to achieve sustained and profitable growth by providing services that consistently satisfy the needs and expectations of its customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 2026201-500223 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 2026201-500218 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMarietta, GA, United StatesHQ recorded Nov 6, 2026201-500211 contacts →

Exact match

“MAXAIR Mechanical, founded in 1988, is a people first company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMontgomeryville, PA, United StatesHQ recorded Nov 6, 2026201-500210 contacts →

Exact match

“The leader in Modular Cleanroom Systems AES is the leader in design, construction, and manufacture of modular cleanroom systems and custom cleanroom equipment for life science and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,000210 contacts →

Exact match

“Ambient is a national collective of HVAC design and implementation firms, each entity esteemed in their respective regions with decades of experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchRedmond, OR, United StatesHQ recorded Nov 6, 2026501-1,000203 contacts →

Exact match

“BASX is an industry leader in the manufacturing of high efficiency data center cooling solutions, cleanroom systems, custom HVAC systems and modular solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBurlington, MA, United StatesHQ recorded Nov 6, 202651-200200 contacts →

Exact match

“Visit chrysalisgxp.com for GMP-ready cleanrooms and services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSmyrna, SC, United StatesHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDania Beach, FL, United StatesHQ recorded Nov 6, 2026201-500177 contacts →

Exact match

“Hill York is a full service contractor that offers a full array of energy efficient air-conditioning services from concept to completion, maintenance to repair and everything in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLaurel, CA, United StatesHQ recorded Nov 6, 2026501-1,000175 contacts →

Exact match

“AMS is one of the nation’s leading providers of commercial heating, ventilation, and air conditioning (HVAC) maintenance, repair, replacement, and new equipment installation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMyrtle Beach, SC, United StatesHQ recorded Nov 6, 202651-200166 contacts →

Exact match

“We believe in… excellence and heart.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchRichardson, TX, United StatesHQ recorded Nov 6, 202651-200135 contacts →

Exact match

“Engineered Air Balance is the leading authority in total system balancing, building commissioning, and critical environment certifications at the forefront of industry standards…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 2026201-500132 contacts →

Exact match

“Addison is a leading supplier of HVAC cooling and dehumidification equipment for commercial and industrial applications with extensive experience in treating ventilation air.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchTaunton, RI, United StatesHQ recorded Nov 6, 202651-200129 contacts →

Exact match

“Environmental Systems, Inc.(ESI) is a premier mechanical contractor & engineering firm headquartered in Taunton, Massachusetts, with offices in Nashua, New Hampshire, and Warwick…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchOrange, CA, United StatesHQ recorded Nov 6, 2026201-500126 contacts →

Exact match

“For over three decades, DMG Corporation has distinguished itself as a premier independent sales agency specializing in top-tier HVAC equipment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAkron, OH, United StatesHQ recorded Nov 6, 2026201-500126 contacts →

Exact match

“Since 1972, The K Company has been setting the standard in commercial, residential and industrial heating, air conditioning, ventilation and refrigeration systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 4,588 cleanroom hvac services based in the United States

See the full list, filter by size, metro and specialty, and access 11,985 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cleanroom hvac services based in the United States at a glance

As of Nov 6, 2026
31.3%Verified-email coverage
8.4Average contacts per company
11-50Median size (employees)
1.7%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,192
11-50
1,797
51-200
440
201-500
61
501-1,000
15
1,001-5,000
8
5,001-10,000
3
10001+
2

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 4,588 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 “cleanroom hvac 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 11,985 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.

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

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

RevenueBase identified 4,588 company matches for cleanroom hvac 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?

Texas Airsystems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most cleanroom hvac services?

Houston leads with 79 company records, followed by New York (59) and Austin (34).

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 11,985 professional contacts with verified work emails tracked across these 4,588 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.