Company lists · Data refreshed September 2026
Top 25 Indoor air quality companies worldwide
RevenueBase identified 4,760 indoor air quality companies worldwide as of September 2026 and tracks 35,670 professional contacts across them, including 9,949 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers indoor air quality companies 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 20, 2026. Country and city lists for indoor air quality companies 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 indoor air quality companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,019 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 669 contacts → | ||||
Strong evidence “Halton Group is the global technology leader in indoor air solutions for demanding spaces.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 489 contacts → | ||||
Partial evidence “France Air est concepteur et distributeur de système de traitement d'air pour les bâtiments tertiaires, industriels, l'habitat, les cuisines professionnelles, les hopitaux ou les…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 474 contacts → | ||||
Strong evidence “Headquartered in Madison, Wisconsin with production facilities in both Madison and Poynette, AprilAire has been providing a variety of Indoor Air Quality solutions and technology…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 418 contacts → | ||||
Partial evidence “Clivet is a leading European company that designs, produces and distributes systems for air conditioning, heating, fresh air and purification with a wide range of solutions for…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 407 contacts → | ||||
Indirect evidence “Soler & Palau es el líder mundial en la fabricación de sistemas de ventilación para la mejora de la calidad del aire interior de los edificios que habitamos y transitamos.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 375 contacts → | ||||
Strong evidence “Over three decades ago, ZECO Aircon embarked on a vision to revolutionize air quality.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 329 contacts → | ||||
Indirect evidence “At Daikin Singapore, we discover something new every day.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 306 contacts → | ||||
Partial evidence “Designing and building clean indoor climates for critical manufacturing industries like Pharmaceutical, Food, Automotive, Electronics, and others, ACES has innovated its way to…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 261 contacts → | ||||
Indirect evidence “Excelência Em Obras de Engenharia em Climatização.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 194 contacts → | ||||
Indirect evidence “Somos una empresa líder en el sector del aire acondicionado, ventilación mecánica, automatización y control, mantenimiento, retrofit, asesoría y soluciones para grantizar calidad…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 182 contacts → | ||||
Indirect evidence “Eurofred, el partner idóneo de soluciones de climatización doméstica, comercial, industrial, y calidad de aire interior.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 172 contacts → | ||||
Indirect evidence “With a staff of over 150 employees in the San Francisco, Sacramento, Los Angeles, San Diego, Modesto, Bakersfield, Fresno, Portland, Chicago, and Grand Rapids offices, Forensic…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 147 contacts → | ||||
Indirect evidence “At AFPRO, we are driven by a mission to make the world safer, healthier, and more productive.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 142 contacts → | ||||
Strong evidence “Arpi’s Industries, a full service mechanical contractor, provides heating, air conditioning, ventilation, plumbing, and air quality solutions to residential and commercial markets.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 139 contacts → | ||||
Indirect evidence “Established in 1994, AdvantaClean is a franchise network specializing in services that keep homes and businesses at their healthiest.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 138 contacts → | ||||
Strong evidence “Plymovent is a global, leading supplier of products, systems and services for the extraction and filtration of polluted indoor air.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 128 contacts → | ||||
Strong evidence “Blueair is a global air wellness brand dedicated to enhancing health and well-being by creating cleaner, fresher, and healthier indoor environments.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 127 contacts → | ||||
Strong evidence “Green Home Solutions is proud to bring products and services for the quality indoor air you want for your home and family.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 126 contacts → | ||||
Indirect evidence “Vi er en betydelig aktør innen service og installasjon av klimaanlegg, og en ledende aktør innen renluftsteknikk.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 124 contacts → | ||||
Indirect evidence “Abatement Technologies, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 123 contacts → | ||||
Partial evidence “Every year, air pollution prematurely kills 7 million people worldwide.” Source: RevenueBase Database · checked Sep 20, 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: indoor air quality companies. 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 indoor air quality companies.
- Partial evidence
- Its own public description names part of indoor air quality companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name indoor air quality companies. 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 4,760 indoor air quality companies worldwide
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Indoor air quality companies worldwide at a glance
As of Sep 20, 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 indoor air quality 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.
- Coverage
- Every country. Country and city lists for indoor air quality companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “indoor air quality 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 indoor air quality 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 indoor air quality companies, 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, 9,949 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.
Indoor air quality companies by location
18 lists · largest firstEvery Indoor air quality companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Indoor air quality companies based in the United States1,644
- Indoor air quality companies based in Canada242
- Indoor air quality companies based in France202
- Indoor air quality companies based in Brazil194
- Indoor air quality companies based in Italy172
- Indoor air quality companies based in India169
- Indoor air quality companies based in the United Kingdom161
- Indoor air quality companies based in Germany111
- Indoor air quality companies based in the Netherlands107
- Indoor air quality companies based in Australia96
- Indoor air quality companies based in Spain80
- Indoor air quality companies based in Finland65
- Indoor air quality companies based in Sweden65
- Indoor air quality companies based in Switzerland65
- Indoor air quality companies based in the United Arab Emirates60
- Indoor air quality companies based in Belgium54
- Indoor air quality companies based in Mexico45
- Indoor air quality companies based in Denmark36
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 indoor air quality 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 indoor air quality companies are there worldwide?
RevenueBase identified 4,760 indoor air quality companies 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?
Camfil, headquartered in Stockholm, tops this list with the largest team on record.
Which country has the most indoor air quality companies?
The United States leads with 1,644 companies, followed by Canada (242) and France (202). Every indoor air quality companies list by country and city is linked on this page.
Which city has the most indoor air quality companies?
Sao Paulo leads with 42 headquartered companies, followed by Dubai (34) and Singapore (33).
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 9,949 verified decision-maker contacts tracked across these 4,760 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.