Company lists · Data refreshed September 2026
Top 25 Air quality monitoring equipment providers worldwide
RevenueBase identified 2,536 air quality monitoring equipment providers worldwide as of September 2026 and tracks 33,193 professional contacts across them, including 11,945 with verified work emails. The United States is the largest market and London the largest hub.
This list covers air quality monitoring equipment providers worldwide, 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 19, 2026. Country and city lists for air quality monitoring equipment providers follow the table.
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.
The 25 largest air quality monitoring equipment providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,901 contacts → | ||||
Indirect evidence “Vaisala is a global leader in measurement instruments and intelligence for climate action.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,211 contacts → | ||||
Indirect evidence “TSI Incorporated serves a global market by investigating, identifying and solving measurement problems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,017 contacts → | ||||
Indirect evidence “INFICON is a leading provider of innovative instrumentation, critical sensor technologies, and Smart Manufacturing/Industry 4.0 software solutions that enhance productivity and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 806 contacts → | ||||
Partial evidence “AAF International clean air products and systems offer the most comprehensive clean air solutions available in the world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 639 contacts → | ||||
Indirect evidence “ENVEA: Elevating Standards.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 560 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 375 contacts → | ||||
Strong evidence “Over three decades ago, ZECO Aircon embarked on a vision to revolutionize air quality.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 323 contacts → | ||||
Partial evidence “Mesa Labs helps you monitor and maintain higher standards in any environment – from the air we breathe to the critical moments of life-saving care.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 297 contacts → | ||||
Indirect evidence “Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 284 contacts → | ||||
Indirect evidence “The world expert in gas analysis, Servomex has established itself as the leading provider of reliable, accurate, and stable gas measurement solutions to industries across the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 264 contacts → | ||||
Indirect evidence “A CRANFOS é uma empresa detentora de tecnologia para equipamentos de controle da poluição do ar, especializada em projeto, fabricação, construção e montagem de sistemas completos…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 247 contacts → | ||||
Indirect evidence “We are a specialist Gas Analytical company, delivering integrated and engineered solutions to Large & Mid-size Industries for Process Optimization, Safety & Continuous Emission…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 237 contacts → | ||||
Strong evidence “IGIENAIR : Spécialiste dans la maitrise et la surveillance de la Qualité de l'Air Intérieur (QAI)!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 231 contacts → | ||||
Indirect evidence “OTT HydroMet works to deliver customer outcomes by providing decision makers with vital insights they trust.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 213 contacts → | ||||
Indirect evidence “SWAN Environmental Pvt.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 211 contacts → | ||||
Indirect evidence “Somos a maior fabricante brasileira de Instrumentação Analítica e especialistas em Análises Ambientais, com mais de 46 anos de história.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 194 contacts → | ||||
Strong evidence “YSI is the maker of environmental, laboratory, and municipal monitoring instruments, sensors, software, systems, and data collection platforms for water quality monitoring and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 186 contacts → | ||||
Strong evidence “IQAir is a Swiss-based air quality technology company that empowers the world to breathe cleaner air through information, collaboration and technology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 175 contacts → | ||||
Indirect evidence “When you need to monitor your cleanroom for contamination, Lighthouse is your premier solution provider.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 169 contacts → | ||||
Strong evidence “Chemtrols Industries is a leading solutions provider in the fields of Process Analytics, Continuous Emission Monitoring Systems, Ambient Air Quality Monitoring Systems, Gas…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 164 contacts → | ||||
Indirect evidence “METER Group designs and manufactures scientific instrumentation that delivers real-time, environmental data to the agricultural, urban, and research sectors.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 161 contacts → | ||||
Indirect evidence “Automation and Technology Group: Specializing in Analyzer System Integration.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 154 contacts → | ||||
Partial evidence “Since 1919, we are a leading manufacturer of environmental testing equipment for water and soil.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 152 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 150 contacts → | ||||
Indirect evidence “Envirosuite is a global leader in environmental intelligence, using proprietary technology and real-time localised data to help industries grow and communities thrive.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: air quality monitoring equipment providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names air quality monitoring equipment providers.
- Partial evidence
- Its own public description names part of air quality monitoring equipment providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name air quality monitoring equipment providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 2,536 air quality monitoring equipment providers worldwide
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Air quality monitoring equipment providers worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 air quality monitoring equipment providers, 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.
- Coverage
- Every country. Country and city lists for air quality monitoring equipment providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “air quality monitoring equipment providers”. 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 air quality monitoring equipment providers), 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 air quality monitoring equipment providers, and records with no verified work email.
- 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, 11,945 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 19, 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.
Air quality monitoring equipment providers by location
16 lists · largest firstEvery Air quality monitoring equipment providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Air quality monitoring equipment providers based in the United States458
- Air quality monitoring equipment providers based in India179
- Air quality monitoring equipment providers based in the United Kingdom174
- Air quality monitoring equipment providers based in France139
- Air quality monitoring equipment providers based in Brazil92
- Air quality monitoring equipment providers based in Canada91
- Air quality monitoring equipment providers based in Germany74
- Air quality monitoring equipment providers based in Italy69
- Air quality monitoring equipment providers based in Australia60
- Air quality monitoring equipment providers based in the Netherlands55
- Air quality monitoring equipment providers based in Spain53
- Air quality monitoring equipment providers based in Switzerland39
- Air quality monitoring equipment providers based in Finland36
- Air quality monitoring equipment providers based in Chile29
- Air quality monitoring equipment providers based in Sweden29
- Air quality monitoring equipment providers based in the United Arab Emirates29
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 air quality monitoring equipment providers, 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 air quality monitoring equipment providers are there worldwide?
RevenueBase identified 2,536 air quality monitoring equipment providers worldwide 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?
Vaisala, headquartered in Vantaa, tops this list with the largest team on record.
Which country has the most air quality monitoring equipment providers?
The United States leads with 458 companies, followed by India (179) and the United Kingdom (174). Every air quality monitoring equipment providers list by country and city is linked on this page.
Which city has the most air quality monitoring equipment providers?
London leads with 34 headquartered companies, followed by Singapore (29) and New Delhi (23).
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 11,945 verified decision-maker contacts tracked across these 2,536 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 19, 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.