Company lists · Data refreshed November 2026

Top 25 Visible emission monitors suppliers based in the United States

RevenueBase identified 64 company matches for visible emission monitors suppliers associated with the United States as of November 2026 and tracks 1,343 professional contacts across them, including 666 with verified work emails. Houston is the largest hub.

This list covers company matches for visible emission monitors suppliers 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 3, 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 3, 2026 How this list was built
64Companies
1,343Contacts tracked
666Verified emails
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The 25 largest visible emission monitors suppliers based in the United States

Ranked by team size
Top 25 of 64 company matches for visible emission monitors suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 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 3, 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 3, 2026 · View company records in RevenueBase
2Exact matchPalatine, TX, United StatesHQ recorded Nov 3, 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 3, 2026 · View company records in RevenueBase
3Exact matchAustin, FL, United StatesHQ recorded Nov 3, 202651-20099 contacts →

Exact match

“Based in Austin, Texas, ESC Spectrum, an Alliance Technical Group company, is a leading provider of products and services for customers in a variety of industries, from Electric…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4Exact matchSolon, OH, United StatesHQ recorded Nov 3, 202651-20059 contacts →

Exact match

“Founded in Ohio Lumex is an analytical technology company serving industrial, energy, environmental, and life sciences markets.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
5Exact matchGlen Burnie, MD, United StatesHQ recorded Nov 3, 202611-5051 contacts →

Exact match

“VIM Technologies was founded in February 1992 by engineers with extensive software development experience for programmable logic controls and host computers.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
6Exact matchAustin, TX, United StatesHQ recorded Nov 3, 202611-5038 contacts →

Exact match

“Spectrum Environmental Solutions is a technology leader in optical analytical techniques.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7Exact matchFuquay-varina, NC, United StatesHQ recorded Nov 3, 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 3, 2026 · View company records in RevenueBase
8Exact matchAngier, LA, United StatesHQ recorded Nov 3, 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 3, 2026 · View company records in RevenueBase
9Exact matchKaty, TX, United StatesHQ recorded Nov 3, 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 3, 2026 · View company records in RevenueBase
10Exact matchEnglewood, CO, United StatesHQ recorded Nov 3, 202611-5023 contacts →

Exact match

“Custom Instrumentation Services Corporation (CiSCO) provides complete high quality Continuous Emissions Monitoring Systems (CEMS) and Data Acquisition and Handling Systems…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
11Exact matchCarrollton, TX, United StatesHQ recorded Nov 3, 202611-5023 contacts →

Exact match

“BAIR IS NOW OFFERING LDAR SERVICES!”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
12Exact matchOrange, CA, United StatesHQ recorded Nov 3, 202651-20020 contacts →

Exact match

“Welcome to California Analytical Instruments - the most trusted name in gas analysis.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
13Exact matchHayward, CA, United StatesHQ recorded Nov 3, 202611-5017 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
14Exact matchElkton, United StatesHQ recorded Nov 3, 202611-5016 contacts →

Exact match

“Air Clear is an air pollution control equipment company based in Northern Maryland.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
15Exact matchWauconda, IL, United StatesHQ recorded Nov 3, 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 3, 2026 · View company records in RevenueBase
16Exact matchWarren, RI, United StatesHQ recorded Nov 3, 202611-5015 contacts →

Exact match

“American Ecotech specializes in the design, installation, operation and maintenance of air pollution monitoring instrumentation and systems.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
17Exact matchHumble, TX, United StatesHQ recorded Nov 3, 202611-5015 contacts →

Exact match

“Precision German engineering.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
18Exact matchHarvest, AL, United StatesHQ recorded Nov 3, 202611-5015 contacts →

Exact match

“Compliance Assurance Associates, Inc.(CAA) provides a complete visible emission evaluator training and certification program (aka smoke school or opacity training) in accordance…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
19Exact matchWaldron, AR, United StatesHQ recorded Nov 3, 202611-5014 contacts →

Exact match

“STI CEMS is an independent CEMS integrator providing complete emissions monitoring solutions built around the needs of each facility.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
20Exact matchHuntington Beach, CA, United StatesHQ recorded Nov 3, 202611-5013 contacts →

Exact match

“At Pacific Standard Environmental (PSE), we provide CEMS field service and custom-engineered CEMS solutions for both compliance emissions monitoring and process measurements.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
21Exact matchWarren, RI, United StatesHQ recorded Nov 3, 202611-5012 contacts →

Exact match

“Ambilabs® manufactures turn-key scientific field monitoring laboratories and the associated infrastructure installed inside each monitoring laboratory.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
22Exact matchLeague City, TX, United StatesHQ recorded Nov 3, 202611-5011 contacts →

Exact match

“EcoChem Analytics is a premier provider of gas analyzers and Continuous Emissions Monitoring Systems (CEMS) MC3 CEMS - Premier multicomponent CEMS for measuring low-level NOx…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
23Exact matchPottstown, PA, United StatesHQ recorded Nov 3, 202611-508 contacts →

Exact match

“We deliver Environmental Reporting Solutions that help organizations simplify environmental data management and strengthen compliance confidence across complex reporting…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
24Exact matchTigard, OR, United StatesHQ recorded Nov 3, 202611-507 contacts →

Exact match

“About Us: Sailbri Cooper Incorporated (SCI) is a global leader in environmental technology, specializing in real-time monitoring solutions for metals and carbon.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
25Exact matchCanonsburg, PA, United StatesHQ recorded Nov 3, 20261-106 contacts →

Exact match

“Arktos Environmental LLC was founded in 2020.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase

Showing 25 of 64 visible emission monitors suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 666 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Visible emission monitors suppliers based in the United States at a glance

As of Nov 3, 2026
49.6%Verified-email coverage
21.0Average contacts per company
11-50Median size (employees)
4.7%Largest-city concentration · Houston
Nov 3, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
25
51-200
8
201-500
2
1,001-5,000
1
10001+
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 64 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 “visible emission monitors suppliers” 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 666 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 3, 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 “visible emission monitors suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many visible emission monitors suppliers are there based in the United States?

RevenueBase identified 64 company matches for visible emission monitors suppliers 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 visible emission monitors suppliers?

Houston leads with 3 company records, followed by Huntington Beach (3) and Austin (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 666 professional contacts with verified work emails tracked across these 64 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 3, 2026.

Ready to reach these companies? Verified emails and direct dials for all 64 visible emission monitors suppliers 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.