Company lists · Data refreshed October 2026

Top 12 H2s in water monitors suppliers based in the United States

RevenueBase identified 25 company matches for h2s in water monitors suppliers associated with the United States as of October 2026 and tracks 230 professional contacts across them, including 122 with verified work emails. Ann Arbor is the largest hub.

This list covers company matches for h2s in water 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 October 26, 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 26, 2026 How this list was built
25Companies
230Contacts tracked
122Verified emails
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The 12 largest h2s in water monitors suppliers based in the United States

Ranked by team size
Top 12 of 25 company matches for h2s in water monitors suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 26, 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 matchValencia, CA, United StatesHQ recorded Oct 26, 202651-20082 contacts →

Exact match

“H2scan was founded in 2002 and has its headquarters, sales, production and marketing staff in Valencia, California.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
2Exact matchFort Collins, CO, United StatesHQ recorded Oct 26, 2026201-50028 contacts →

Exact match

“In-Situ simplifies drinking water and wastewater treatment process control with low-maintenance chemical analysis systems, in-tank monitoring instrumentation and portable…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
3Exact matchAnn Arbor, MI, United StatesHQ recorded Oct 26, 202611-5014 contacts →

Exact match

“ENMET is a trusted leader in toxic gas detection and air monitoring, protecting people, facilities, and communities for over 50 years.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
4Exact matchTustin, CA, United StatesHQ recorded Oct 26, 202611-5014 contacts →

Exact match

“AMI is a leading provider of best-in-class gas analyzers.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
5Exact matchSt. Louis, MO, United StatesHQ recorded Oct 26, 202611-508 contacts →

Exact match

“Provider of gas detection equipment, environmental monitoring and electrical contracting in UK and Ireland including our Element H2S Sensor.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
6Exact matchCity Of Industry, CA, United StatesHQ recorded Oct 26, 20261-106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
7Exact matchFontana, CA, United StatesHQ recorded Oct 26, 20261-106 contacts →

Exact match

“Hal Technology (HalTech) is one of the world's leading supplier of environmental monitoring instruments.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
8Exact matchStafford, TX, United StatesHQ recorded Oct 26, 20261-104 contacts →

Exact match

“Texas Analytical Controls, Inc.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
9Exact matchGlendale, AZ, United StatesHQ recorded Oct 26, 20261-103 contacts →

Exact match

“LambTech, Inc, based in Glendale, Arizona, is a leading environmental services company specializing in hydrogen sulfide monitoring and odor control systems within the wastewater…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
10Exact matchCollegeville, PA, United StatesHQ recorded Oct 26, 202611-503 contacts →

Exact match

“From our U.S.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
11Exact matchMiami, FL, United StatesHQ recorded Oct 26, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
12Exact matchRound Rock, TX, United StatesHQ recorded Oct 26, 2026n/a2 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase

Showing 12 of 25 h2s in water monitors suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 122 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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H2s in water monitors suppliers based in the United States at a glance

As of Oct 26, 2026
53.0%Verified-email coverage
9.2Average contacts per company
11-50Median size (employees)
8.0%Largest-city concentration · Ann Arbor
Oct 26, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
11
51-200
2
201-500
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 25 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 “h2s in water 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 122 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 26, 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 “h2s in water monitors suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many h2s in water monitors suppliers are there based in the United States?

RevenueBase identified 25 company matches for h2s in water monitors suppliers 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?

H2scan Corporation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most h2s in water monitors suppliers?

Ann Arbor leads with 2 company records, followed by Houston (2) and Addison (1).

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 122 professional contacts with verified work emails tracked across these 25 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 26, 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.