Company lists · Data refreshed October 2026

Top 25 Boiler emissions testing services based in the United States

RevenueBase identified 88 company matches for boiler emissions testing services associated with the United States as of October 2026 and tracks 1,521 professional contacts across them, including 552 with verified work emails. Camarillo is the largest hub.

This list covers company matches for boiler emissions 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 October 22, 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 22, 2026 How this list was built
88Companies
1,521Contacts tracked
552Verified emails
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The 25 largest boiler emissions testing services based in the United States

Ranked by team size
Top 25 of 88 company matches for boiler emissions testing services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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 matchAtlanta, GA, United StatesHQ recorded Oct 22, 2026201-500212 contacts →

Exact match

“Clyde Industries, a subsidiary of Kadant Inc, headquartered in Atlanta, Georgia, is a leading provider of boiler efficiency solutions for the most demanding applications in the…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2Exact matchLancaster, OH, United StatesHQ recorded Oct 22, 2026201-500209 contacts →

Exact match

“At Diamond Power, we partner with customers to tackle even the most complex boiler cleaning issues.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3Exact matchSeabrook, TX, United StatesHQ recorded Oct 22, 2026201-500155 contacts →

Exact match

“Automation and Technology Group: Specializing in Analyzer System Integration.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4Exact matchPalatine, IL, United StatesHQ recorded Oct 22, 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 22, 2026 · View company records in RevenueBase
5Exact matchBroken Arrow, OK, United StatesHQ recorded Oct 22, 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 22, 2026 · View company records in RevenueBase
6Exact matchFremont, CA, United StatesHQ recorded Oct 22, 202651-20055 contacts →

Exact match

“Since 1967 Nationwide Boiler has provided reliable rental boilers to process steam users across the globe.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
7Exact matchAustin, TX, United StatesHQ recorded Oct 22, 202611-5039 contacts →

Exact match

“Erthwrks provides air testing services for industry.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8Exact matchSugar Land, TX, United StatesHQ recorded Oct 22, 202611-5037 contacts →

Exact match

“FURNACE IMPROVEMENTS SERVICES (FIS) has been actively providing value-added solutions for Fired Heaters, Boilers, and Waste Heat Recovery Units to end-users around the world for…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9Exact matchEnfield, CT, United StatesHQ recorded Oct 22, 202651-20033 contacts →

Exact match

“Integrated engineering services company providing visual inspections for boilers and pressure parts, non-destructive testing, software for operator training and operator…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10Exact matchKaty, TX, United StatesHQ recorded Oct 22, 202651-20032 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 · Oct 22, 2026 · View company records in RevenueBase
11Exact matchAngier, NC, United StatesHQ recorded Oct 22, 202611-5032 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 · Oct 22, 2026 · View company records in RevenueBase
12Exact matchMarlborough, MA, United StatesHQ recorded Oct 22, 2026501-1,00031 contacts →

Exact match

“Keeping boilers running efficiently is critical.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13Exact matchFuquay-varina, NC, United StatesHQ recorded Oct 22, 202611-5029 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14Exact matchAlbemarle, NC, United StatesHQ recorded Oct 22, 202611-5023 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15Exact matchCarrollton, TX, United StatesHQ recorded Oct 22, 202611-5022 contacts →

Exact match

“BAIR IS NOW OFFERING LDAR SERVICES!”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16Exact matchWellington, OH, United StatesHQ recorded Oct 22, 202651-20022 contacts →

Exact match

“Grace Consulting Inc.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17Exact matchHayward, CA, United StatesHQ recorded Oct 22, 202611-5017 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18Exact matchThe Woodlands, TX, United StatesHQ recorded Oct 22, 202611-5016 contacts →

Exact match

“EnTech provides to the Oil & Gas Industry compliance assistance, permitting / modeling support, emission database support, Greenhouse Gas (GHG) reporting / monitoring, thermal…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19Exact matchWauconda, IL, United StatesHQ recorded Oct 22, 202651-20015 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Oct 22, 202611-5015 contacts →

Exact match

“With extensive years in the boiler business, our main office in Houston and with 2 more locations in Corpus Christi and Weslaco, South Texas Boiler is a full service boiler…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21Exact matchDeer Park, TX, United StatesHQ recorded Oct 22, 20261-1014 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 · Oct 22, 2026 · View company records in RevenueBase
22Exact matchSheridan, WY, United StatesHQ recorded Oct 22, 202611-5013 contacts →

Exact match

“We are emissions compliance professionals who specialize in communications-driven emissions testing to help our partners in the oil & gas industries achieve their compliance goals.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23Exact matchAcworth, GA, United StatesHQ recorded Oct 22, 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 · Oct 22, 2026 · View company records in RevenueBase
24Exact matchKnoxville, TN, United StatesHQ recorded Oct 22, 202611-5011 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25Exact matchSemmes, AL, United StatesHQ recorded Oct 22, 202611-5010 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 · Oct 22, 2026 · View company records in RevenueBase

Showing 25 of 88 boiler emissions testing services based in the United States

See the full list, filter by size, metro and specialty, and access 552 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Boiler emissions testing services based in the United States at a glance

As of Oct 22, 2026
36.3%Verified-email coverage
17.3Average contacts per company
11-50Median size (employees)
2.3%Largest-city concentration · Camarillo
Oct 22, 2026Page data refreshed

Companies by employee count

1-10
39
11-50
33
51-200
12
201-500
3
501-1,000
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 88 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 “boiler emissions 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 552 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 22, 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 “boiler emissions testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many boiler emissions testing services are there based in the United States?

RevenueBase identified 88 company matches for boiler emissions testing services 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?

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

Which city has the most boiler emissions testing services?

Camarillo leads with 2 company records, followed by Fremont (2) and Indianapolis (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 552 professional contacts with verified work emails tracked across these 88 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 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 88 boiler emissions testing services based in the United States. Start with a free account, no credit card.

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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.