Company lists · Data refreshed November 2026

Top 25 Stack emission testing services based in the United States

RevenueBase identified 50 company matches for stack emission testing services associated with the United States as of November 2026 and tracks 1,024 professional contacts across them, including 533 with verified work emails. Austin is the largest hub.

This list covers company matches for stack emission testing 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
50Companies
1,024Contacts tracked
533Verified emails
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The 25 largest stack emission testing services based in the United States

Ranked by team size
Top 25 of 50 company matches for stack emission testing 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 matchSanta Clara, CA, United StatesHQ recorded Nov 6, 2026201-500335 contacts →

Exact match

“Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPalatine, TX, United StatesHQ recorded Nov 6, 202651-200158 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBroken Arrow, LA, United StatesHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHelena, MT, United StatesHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Air Quality and Environmental Consulting Bison Engineering, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“Erthwrks provides air testing services for industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchFuquay-varina, NC, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Apex Instruments was established in 1988 as an American-owned company with a worldwide impact.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAngier, LA, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“30+ YEARS OF PROVEN RESULTS AMP-Cherokee offers environmental compliance and process performance solutions for air quality and emissions monitoring with our turnkey CEMS, FTIR…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKaty, TX, United StatesHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“Formed in 2010 and headquartered in Houston, Texas, Encino Environmental Services, LLC is an emissions testing, monitoring, and compliance support firm serving critical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCarrollton, TX, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“BAIR IS NOW OFFERING LDAR SERVICES!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWellington, OH, United StatesHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“Grace Consulting Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHayward, CA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWauconda, IL, United StatesHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“Established in 1983, ARI Environmental, Inc.(ARI) is a leading environmental air emissions testing company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDeer Park, TX, United StatesHQ recorded Nov 6, 20261-1015 contacts →

Exact match

“Golden Specialty was formed in the emission testing industry and one of the first three emissions testing companies to achieve full ASTM D7036 accreditation, as well as ISO17025.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchVentura, CA, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Atmospheric Analysis and Consulting (AAC) is a leading air quality laboratory.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAcworth, GA, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Environmental Testing & Consulting Services Advanced Industrial Resources (AIR) is an independent, Atlanta-based environmental testing and consulting firm that provides…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCamas, WA, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“We specialize in air quality management, leak detection and repair, ambient air monitoring and stack monitoring.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchKnoxville, PA, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSemmes, AL, United StatesHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“SEAS is an environmental testing company that has the capability to perform all of your source testing requirements.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchEvansville, IN, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Air Quality Services was founded in 1998 to exclusively provide air-related environmental services including: stack monitoring (CEMS), consulting/permitting, stack testing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBakersfield, CA, United StatesHQ recorded Nov 6, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchShawnee, KS, United StatesHQ recorded Nov 6, 20261-105 contacts →

Exact match

“AirSource Technologies is an emissions testing company based in Kansas City, Kansas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAntioch, CA, United StatesHQ recorded Nov 6, 202611-505 contacts →

Exact match

“We partner with clients to enhance their environmental image and to relieve their burden of concerns about air pollutant emissions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAlliance, United StatesHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Custom Stack Analysis, LLC, was originally established in Alliance, Ohio, in 1965 by Mr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSimsbury, CT, United StatesHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Canomara LLC (CM) specializes in air measurement/source sampling services commonly known as stack testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMiamisburg, OH, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 50 stack emission testing services based in the United States

See the full list, filter by size, metro and specialty, and access 533 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Stack emission testing services based in the United States at a glance

As of Nov 6, 2026
52.1%Verified-email coverage
20.5Average contacts per company
11-50Median size (employees)
4.0%Largest-city concentration · Austin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
20
51-200
6
201-500
1
1,001-5,000
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 50 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 “stack emission testing 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 533 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 “stack emission testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many stack emission testing services are there based in the United States?

RevenueBase identified 50 company matches for stack emission testing 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?

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

Which city has the most stack emission testing services?

Austin leads with 2 company records, followed by Cincinnati (2) and Houston (2).

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 533 professional contacts with verified work emails tracked across these 50 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.