Company lists · Data refreshed September 2026
Top 25 Indoor air quality specialists worldwide
RevenueBase identified 3,437 indoor air quality specialists worldwide as of September 2026 and tracks 24,270 professional contacts across them, including 6,885 with verified work emails. The United States is the largest market and Singapore the largest hub.
This list covers indoor air quality specialists 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 specialists 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 specialists worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | 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. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 148 contacts → | ||||
Partial evidence “Camfil France fait partie du groupe Camfil, leader mondial des solutions de filtration de l'air.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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. | |||||
| 10 | 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. | |||||
| 11 | 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. | |||||
| 12 | 130 contacts → | ||||
Indirect evidence “Envirolab Group offers a wide array of environment testing and analytical services to support investigations of inorganic and organic contaminants and pollutants.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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. | |||||
| 14 | 126 contacts → | ||||
Indirect evidence “Brink Climate Systems is marktleider in ventilatie met warmteterugwinning, luchtverwarming en koeling.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 110 contacts → | ||||
Indirect evidence “Since 1967, Joe W.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 108 contacts → | ||||
Strong evidence “AT BGE, WE BELIEVE CLEAN AIR MATTERS BGE Indoor Air Quality Solutions is committed to keeping people healthy in their workplaces, buildings, and communities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 107 contacts → | ||||
Indirect evidence “Life Environmental Services | Asbestos, Water, Fire & Mould Management Consultancy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 105 contacts → | ||||
Indirect evidence “Anwo, especialistas en climatización, es una empresa sustentada por un equipo de profesionale altamente, comprometidos, que encuentran en ANWO un espacio de desarrollo integral…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 104 contacts → | ||||
Partial evidence “At Rensa Filtration, our mission is to help people breathe cleaner air.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 100 contacts → | ||||
Indirect evidence “Paracel Laboratories Ltd.(Paracel) is one of the oldest, privately owned and operated environmental testing companies in Canada.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 99 contacts → | ||||
Partial evidence “AIRVANCE Group is a leading supplier of Heating, Ventilation and Air Conditioning products (HVAC), active in mutiple countries in Europe.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 97 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 95 contacts → | ||||
Indirect evidence “SKC is a well-known and respected leader in industrial hygiene and occupational safety.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 93 contacts → | ||||
Indirect evidence “A Conforlab cuida do invisível para proteger o que é essencial.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 91 contacts → | ||||
Indirect evidence “Founded in 1998, ENVIROCHECK, INC.” 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 specialists. 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 specialists.
- Partial evidence
- Its own public description names part of indoor air quality specialists, 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 specialists. 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 3,437 indoor air quality specialists worldwide
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Indoor air quality specialists 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 specialists, 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 specialists are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “indoor air quality specialists”. 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 specialists), 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 specialists, 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, 6,885 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 specialists by location
16 lists · largest firstEvery Indoor air quality specialists list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Indoor air quality specialists based in the United States1,392
- Indoor air quality specialists based in Canada200
- Indoor air quality specialists based in France171
- Indoor air quality specialists based in the United Kingdom122
- Indoor air quality specialists based in Brazil84
- Indoor air quality specialists based in the Netherlands82
- Indoor air quality specialists based in India80
- Indoor air quality specialists based in Germany78
- Indoor air quality specialists based in Australia74
- Indoor air quality specialists based in Italy70
- Indoor air quality specialists based in Finland54
- Indoor air quality specialists based in Sweden51
- Indoor air quality specialists based in Switzerland50
- Indoor air quality specialists based in Denmark37
- Indoor air quality specialists based in Belgium35
- Indoor air quality specialists based in the United Arab Emirates33
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 specialists, 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 specialists are there worldwide?
RevenueBase identified 3,437 indoor air quality specialists 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?
S&p Ventilación España, headquartered in Parets Del Valles, tops this list with the largest team on record.
Which country has the most indoor air quality specialists?
The United States leads with 1,392 companies, followed by Canada (200) and France (171). Every indoor air quality specialists list by country and city is linked on this page.
Which city has the most indoor air quality specialists?
Singapore leads with 26 headquartered companies, followed by Dubai (21) and Houston (21).
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 6,885 verified decision-maker contacts tracked across these 3,437 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.