Company lists · Data refreshed October 2026

Top 25 Industrial air quality testing companies based in the United States

RevenueBase identified 737 company matches for industrial air quality testing companies associated with the United States as of October 2026 and tracks 7,214 professional contacts across them, including 2,545 with verified work emails. Houston is the largest hub.

This list covers company matches for industrial air quality testing companies 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 October 14, 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 Oct 14, 2026 How this list was built
737Companies
7,214Contacts tracked
2,545Verified emails
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The 25 largest industrial air quality testing companies based in the United States

Ranked by team size
Top 25 of 737 company matches for industrial air quality testing companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 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 matchCinnaminson, NJ, United StatesHQ recorded Oct 14, 2026501-1,000753 contacts →

Exact match

“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
2Exact matchHayward, CA, United StatesHQ recorded Oct 14, 202651-200168 contacts →

Exact match

“With a staff of over 150 employees in the San Francisco, Sacramento, Los Angeles, San Diego, Modesto, Bakersfield, Fresno, Portland, Chicago, and Grand Rapids offices, Forensic…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
3Exact matchElmhurst, IL, United StatesHQ recorded Oct 14, 202651-200160 contacts →

Exact match

“Since the passage of original environmental legislation nearly four decades ago, both private and public industry have turned to Mostardi Platt for guidance in complying with air…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
4Exact matchPalatine, IL, United StatesHQ recorded Oct 14, 202651-200152 contacts →

Exact match

“Since its founding in 1972, CleanAir has an established reputation for excellence on projects of all sizes, ranging from boiler, APC equipment and cooling tower efficiency testing…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
5Exact matchAustin, TX, United StatesHQ recorded Oct 14, 202651-200109 contacts →

Exact match

“Since 1967, Joe W.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
6Exact matchOrange, CA, United StatesHQ recorded Oct 14, 202651-20099 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
7Exact matchSan Juan Capistrano, CA, United StatesHQ recorded Oct 14, 202651-20099 contacts →

Exact match

“Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
8Exact matchBroken Arrow, OK, United StatesHQ recorded Oct 14, 202651-20077 contacts →

Exact match

“Air Hygiene is a national leader in stack testing, air emissions measurement, RATAs, and regulatory compliance services for industrial facilities across the United States.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Oct 14, 202651-20076 contacts →

Exact match

“ALC provides a wide range of environmental services from testing and reporting on potentially unsafe or hazardous conditions (asbestos, lead paint, indoor air quality/mold, soil…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Oct 14, 202651-20075 contacts →

Exact match

“As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
11Exact matchCollinsville, IL, United StatesHQ recorded Oct 14, 2026201-50075 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 14, 2026201-50065 contacts →

Exact match

“Sage ATC Environmental Consulting is now Atlas.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
13Exact matchEighty Four, PA, United StatesHQ recorded Oct 14, 202651-20064 contacts →

Exact match

“SKC is a well-known and respected leader in industrial hygiene and occupational safety.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
14Exact matchClearwater, FL, United StatesHQ recorded Oct 14, 202651-20062 contacts →

Exact match

“Is the health comfort and energy efficiency of facilities at risk?”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
15Exact matchRochester, NY, United StatesHQ recorded Oct 14, 202651-20058 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
16Exact matchMequon, WI, United StatesHQ recorded Oct 14, 202651-20058 contacts →

Exact match

“SEAL is a global manufacturer of environmental testing equipment primarily for the water quality industry and other environmental and industrial applications.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
17Exact matchCharleston, SC, United StatesHQ recorded Oct 14, 202651-20053 contacts →

Exact match

“GEL Engineering and GEL Engineering of NC provide environmental, engineering, surveying, and emissions testing services to our valued clients throughout the southeast and beyond.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Oct 14, 202651-20052 contacts →

Exact match

“A&B Environmental Services, Inc.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19Exact matchRichmond, VA, United StatesHQ recorded Oct 14, 202611-5050 contacts →

Exact match

“SanAir Technologies Laboratory, Inc.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20Exact matchPittsburg, CA, United StatesHQ recorded Oct 14, 202651-20047 contacts →

Exact match

“Located in the San Francisco Bay Area (Pittsburg), McCampbell Analytical tests drinking water, effluent, soils, solids, hazardous waste, air, industrial materials and food for a…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
21Exact matchAmerican Canyon, CA, United StatesHQ recorded Oct 14, 202611-5046 contacts →

Exact match

“EnviroCare International, Inc- A CECO Environmental Brand.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22Exact matchOakland, CA, United StatesHQ recorded Oct 14, 202651-20044 contacts →

Exact match

“Established in 1986, ACC Environmental Consultants, Inc.(ACC) is an employee-owned full service environmental consulting and design firm recognized for its excellent and reliable…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
23Exact matchRichardson, TX, United StatesHQ recorded Oct 14, 202611-5041 contacts →

Exact match

“Farmer Environmental Group is a national full service environmental consulting firm providing a wide range of services to industries, municipalities, insurance, real estate…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
24Exact matchSpringfield, MO, United StatesHQ recorded Oct 14, 202651-20041 contacts →

Exact match

“PDC Laboratories provides quality control, sample collection and other environmental testing services in a range of applications.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25Exact matchTampa, FL, United StatesHQ recorded Oct 14, 202651-20041 contacts →

Exact match

“Surgically Clean Air® is trusted by healthcare providers, educators, elite athletes, and professionals who demand the highest standards of indoor air quality.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase

Showing 25 of 737 industrial air quality testing companies based in the United States

See the full list, filter by size, metro and specialty, and access 2,545 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial air quality testing companies based in the United States at a glance

As of Oct 14, 2026
35.3%Verified-email coverage
9.8Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · Houston
Oct 14, 2026Page data refreshed

Companies by employee count

1-10
405
11-50
255
51-200
69
201-500
4
501-1,000
2
1,001-5,000
1
5,001-10,000
1

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 737 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 “industrial air quality testing companies” 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 2,545 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 October 14, 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 “industrial air quality testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial air quality testing companies are there based in the United States?

RevenueBase identified 737 company matches for industrial air quality testing companies associated with the United States as of October 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?

Emsl Analytical, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most industrial air quality testing companies?

Houston leads with 17 company records, followed by New York (14) and Austin (11).

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 2,545 professional contacts with verified work emails tracked across these 737 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 October 14, 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.