Company lists · Data refreshed September 2026

Top 25 Gas sensors companies based in the United States

RevenueBase identified 196 gas sensors companies headquartered in the United States as of September 2026 and tracks 5,059 professional contacts across them, including 1,558 with verified work emails. Pittsburgh is the largest hub.

This list covers gas sensors companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
196Companies
5,059Contacts tracked
1,558Verified emails
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The 25 largest gas sensors companies based in the United States

Ranked by team size
Top 25 of 196 gas sensors companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to gas sensors companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePittsburgh, PA, United StatesHQ checked Sep 20, 20261,001-5,000662 contacts →

Partial evidence

“Industrial Scientific designs and manufactures gas detection products and solutions that protect workers from hazardous conditions around the world.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceBloomington, MN, United StatesHQ checked Sep 20, 2026201-500265 contacts →

Partial evidence

“Det-Tronics is a global leader in fire and gas-safety systems.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceThousand Oaks, CA, United StatesHQ checked Sep 20, 20261,001-5,000120 contacts →

Partial evidence

“For more than 50 years Kavlico Pressure Sensors has been a leading expert in designing, developing, and manufacturing a broad range of precision, pressure, pressure and…”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceGays Mills, WI, United StatesHQ checked Sep 20, 202651-200114 contacts →

Partial evidence

“Building Automation Products, Inc.(BAPI), designs and manufactures a wide variety of sensors and related products primarily for the HVAC industry.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceCypress, CA, United StatesHQ checked Sep 20, 20261,001-5,000114 contacts →

Indirect evidence

“The OPTEX Group is dedicated to creating a safer, more secure, and comfortable world through sensing technologies.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceUnion City, CA, United StatesHQ checked Sep 20, 202651-200104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceTwinsburg, OH, United StatesHQ checked Sep 20, 202651-200103 contacts →

Partial evidence

“Reuter-Stokes is an energy technology company that designs and manufactures sensors for power generation.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceWatertown, MA, United StatesHQ checked Sep 20, 202651-200102 contacts →

Partial evidence

“Founded in 1931 United Electric Controls (UE), and its divisions, Precision Sensors and Applied Sensor Technologies, is a privately held corporation located in Watertown…”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceNorthford, CT, United StatesHQ checked Sep 20, 2026501-1,00098 contacts →

Partial evidence

“Xtralis is the leading global provider of powerful solutions for the very early & reliable detection of smoke, fire, and gas threats.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidencePearland, TX, United StatesHQ checked Sep 20, 202651-20089 contacts →

Indirect evidence

“For over 55 years, Millar has been a trusted name in innovation, precision, and reliability.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceValencia, CA, United StatesHQ checked Sep 20, 202651-20086 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceValparaiso, IN, United StatesHQ checked Sep 20, 202651-20084 contacts →

Partial evidence

“SENSIT Technologies builds rugged gas detection and emissions monitoring instruments that natural gas utilities, fire and emergency responders, and industrial operators trust when…”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceColumbia, MO, United StatesHQ checked Sep 20, 202651-20070 contacts →

Partial evidence

“CTI is a leading manufacturer of gas detection equipment for industrial facilities.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceCary, IL, United StatesHQ checked Sep 20, 202651-20066 contacts →

Partial evidence

“Manufacturer of low-level gas detection systems and solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceLake Forest, CA, United StatesHQ checked Sep 20, 2026201-50066 contacts →

Partial evidence

“General Monitors has been helping protect people, facilities, and operations with trusted gas and flame detection solutions for decades and was acquired by MSA Safety in 2010.”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceSparks, NV, United StatesHQ checked Sep 20, 202651-20061 contacts →

Partial evidence

“NevadaNano provides safety and climate solutions for many of the world’s largest corporations, with innovative multi-gas sensing products and IIoT automated emissions monitoring…”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceBeaverton, OR, United StatesHQ checked Sep 20, 202651-20055 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceSaline, MI, United StatesHQ checked Sep 20, 202651-20052 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceExport, PA, United StatesHQ checked Sep 20, 202651-20048 contacts →

Indirect evidence

“Founded in 1969 by Sam Shearer, CSE had its beginnings in servicing and repairing safety equipment for the coal mining industry.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 20, 202611-5045 contacts →

Indirect evidence

“ChemDAQ’s mission is to empower customers to eliminate workplace exposure to toxic chemicals through innovative monitoring and control solutions, industry-leading partnerships…”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceLogan, UT, United StatesHQ checked Sep 20, 202651-20043 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 20, 2026501-1,00040 contacts →

Indirect evidence

“Since 1911, Innovation is Our Tradition.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceSan Jose, CA, United StatesHQ checked Sep 20, 202611-5037 contacts →

Partial evidence

“The company’s main lines of activity encompass the design, development, manufacturing, and global sales of flame and gas detectors, and fire & gas protection systems.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceMiddleton, WI, United StatesHQ checked Sep 20, 202651-20034 contacts →

Partial evidence

“Automation Components, Inc.(ACI) creates and distributes some of the best environmental sensors used all across the globe.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceMidland, TX, United StatesHQ checked Sep 20, 202651-20034 contacts →

Partial evidence

“Shepherd Safety Systems designs, manufactures, and rents asset-to-enterprise technology that detects gas emissions in real time and links remote field operations and office…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 196 gas sensors companies based in the United States

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Gas sensors companies based in the United States at a glance

As of Sep 20, 2026
30.8%Verified-email coverage
25.8Average contacts per company
11-50Median size (employees)
3.1%Largest-city concentration · Pittsburgh
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
78
11-50
66
51-200
35
201-500
6
501-1,000
5
1,001-5,000
6

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 196 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among gas sensors companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “gas sensors companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names gas sensors companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among gas sensors companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,558 across the full list. 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 September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names gas sensors companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many gas sensors companies are there based in the United States?

RevenueBase identified 196 gas sensors companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Industrial Scientific, headquartered in Pittsburgh, tops this list with the largest team on record.

Which city has the most gas sensors companies?

Pittsburgh leads with 6 headquartered companies, followed by San Jose (6) and Houston (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,558 verified decision-maker contacts tracked across these 196 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 Smart Search, 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.