Company lists · Data refreshed September 2026
Top 25 Indoor air quality testing companies worldwide
RevenueBase identified 1,475 company matches for indoor air quality testing companies worldwide as of September 2026 and tracks 10,729 professional contacts across them, including 3,329 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers company matches for indoor air quality testing companies worldwide, 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 September 20, 2026. Country and city lists for indoor air quality testing companies follow the table.
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.
The 25 largest indoor air quality testing companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 719 contacts → | ||||
Exact match “As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 237 contacts → | ||||
Exact match “IGIENAIR : Spécialiste dans la maitrise et la surveillance de la Qualité de l'Air Intérieur (QAI)!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 172 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 152 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 130 contacts → | ||||
Exact match “Envirolab Group offers a wide array of environment testing and analytical services to support investigations of inorganic and organic contaminants and pollutants.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 127 contacts → | ||||
Exact match “Green Home Solutions is proud to bring products and services for the quality indoor air you want for your home and family.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 114 contacts → | ||||
Exact match “PT Medialab Indonesia is a company specializes in laboratory services for environmental quality testing and Industrial Hygiene Monitoring.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 108 contacts → | ||||
Exact match “AT BGE, WE BELIEVE CLEAN AIR MATTERS BGE Indoor Air Quality Solutions is committed to keeping people healthy in their workplaces, buildings, and communities.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 102 contacts → | ||||
Exact match “Airthings is a leading global technology company specializing in award-winning radon detectors and indoor air quality monitors for homes, workplaces, and schools.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 100 contacts → | ||||
Exact match “Paracel Laboratories Ltd.(Paracel) is one of the oldest, privately owned and operated environmental testing companies in Canada.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 97 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 93 contacts → | ||||
Exact match “A Conforlab cuida do invisível para proteger o que é essencial.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 84 contacts → | ||||
Exact match “Protect Environmental is a national leader in the environmental consulting and construction industry, focusing on radon and chemical vapor intrusion management.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 83 contacts → | ||||
Exact match “Modern PURAIR® is your full-service Indoor Air Quality company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 82 contacts → | ||||
Exact match “ALC provides a wide range of environmental services from testing and reporting on potentially unsafe or hazardous conditions (asbestos, lead paint, indoor air quality/mold, soil…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 80 contacts → | ||||
Exact match “A.J.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 74 contacts → | ||||
Exact match “Isolerab AB erbjuder villaägare en helhetslösning för ett friskare inomhusklimat och lägre energikostnader; Tilläggsisolering, Ventilation och Mögelbehandling.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 72 contacts → | ||||
Exact match “Experts in air quality, odour and emission monitoring.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 71 contacts → | ||||
Exact match “A&B Environmental Services, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 68 contacts → | ||||
Exact match “AIR HYGIENE is known for providing professional services which include the following:* Providing superior, cost saving services to our clients!* High quality emission testing…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 60 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 57 contacts → | ||||
Exact match “Is the health comfort and energy efficiency of facilities at risk?” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 50 contacts → | ||||
Exact match “Technolab is de meest ervaren partner als het aankomt op zorgen voor een schone lucht, veilig water en goede materialen.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 49 contacts → | ||||
Exact match “SanAir Technologies Laboratory, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 48 contacts → | ||||
Exact match “At Skyside, we’re creating a brighter tomorrow through innovative air emissions and water testing practices.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “indoor air quality testing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,475 indoor air quality testing companies worldwide
See the full list, filter by size, metro and specialty, and access 3,329 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Indoor air quality testing 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
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.
- Coverage
- Every country. Country and city lists for indoor air quality testing companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “indoor air quality testing companies” 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. 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 3,329 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 September 20, 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.
Indoor air quality testing companies by location
7 lists · largest firstEvery Indoor air quality testing 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 testing companies based in the United States684
- Indoor air quality testing companies based in Canada91
- Indoor air quality testing companies based in France69
- Indoor air quality testing companies based in the United Kingdom39
- Indoor air quality testing companies based in Finland27
- Indoor air quality testing companies based in Germany27
- Indoor air quality testing companies based in Australia26
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 “indoor air quality testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many indoor air quality testing companies are there worldwide?
RevenueBase identified 1,475 company matches for indoor air quality testing companies worldwide as of September 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?
Emsl Analytical, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most indoor air quality testing companies?
The United States leads with 684 companies, followed by Canada (91) and France (69). Every indoor air quality testing companies list by country and city is linked on this page.
Which city has the most indoor air quality testing companies?
New York leads with 15 company records, followed by Singapore (14) and Houston (13).
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 3,329 professional contacts with verified work emails tracked across these 1,475 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 September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,475 indoor air quality testing companies worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 indoor air quality testing companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,475 matching company records for indoor air quality testing companies worldwide, with 10,729 tracked contacts and 3,329 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 indoor air quality testing companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Emsl Analytical, INCemsl.com HQ: Cinnaminson, NJ, United StatesReported employees: 501-1,000 | Cinnaminson, NJ, United States | 501-1,000 | Exact match | 719 contacts → |
“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Igienairigienair.comHQ: Achères, FranceReported employees: 501-1,000 | Achères, France | 501-1,000 | Exact match | 237 contacts → |
“IGIENAIR : Spécialiste dans la maitrise et la surveillance de la Qualité de l'Air Intérieur (QAI)!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Hayward, CA, United StatesReported employees: 51-200 | Hayward, CA, United States | 51-200 | Exact match | 172 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Cleanair Engineeringcleanair.comHQ: Palatine, IL, United StatesReported employees: 51-200 | Palatine, IL, United States | 51-200 | Exact match | 152 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Envirolab Groupenvirolab.com.auHQ: Chatswood, AustraliaReported employees: 201-500 | Chatswood, Australia | 201-500 | Exact match | 130 contacts → |
“Envirolab Group offers a wide array of environment testing and analytical services to support investigations of inorganic and organic contaminants and pollutants.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Green Home Solutionsgreenhomesolutions.com HQ: Spring Mills, PA, United StatesReported employees: 11-50 | Spring Mills, PA, United States | 11-50 | Exact match | 127 contacts → |
“Green Home Solutions is proud to bring products and services for the quality indoor air you want for your home and family.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Pt. Medialab Indonesiamedialab.co.id HQ: Bekasi Regency, IndonesiaReported employees: 51-200 | Bekasi Regency, Indonesia | 51-200 | Exact match | 114 contacts → |
“PT Medialab Indonesia is a company specializes in laboratory services for environmental quality testing and Industrial Hygiene Monitoring.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  BGE Indoor AIR Quality Solutionsbgecleanair.comHQ: Edmonton, AB, CanadaReported employees: 51-200 | Edmonton, AB, Canada | 51-200 | Exact match | 108 contacts → |
“AT BGE, WE BELIEVE CLEAN AIR MATTERS BGE Indoor Air Quality Solutions is committed to keeping people healthy in their workplaces, buildings, and communities.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Airthingsairthings.comHQ: Oslo, NorwayReported employees: 51-200 | Oslo, Norway | 51-200 | Exact match | 102 contacts → |
“Airthings is a leading global technology company specializing in award-winning radon detectors and indoor air quality monitors for homes, workplaces, and schools.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Paracel Laboratories LTDparacellabs.comHQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 100 contacts → |
“Paracel Laboratories Ltd.(Paracel) is one of the oldest, privately owned and operated environmental testing companies in Canada.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  A-Tech Consulting, INCatechinc.netHQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 97 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Conforlabconforlab.com.brHQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 93 contacts → |
“A Conforlab cuida do invisível para proteger o que é essencial.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Protect Environmentalprotectenvironmental.com HQ: Louisville, KY, United StatesReported employees: 201-500 | Louisville, KY, United States | 201-500 | Exact match | 84 contacts → |
“Protect Environmental is a national leader in the environmental consulting and construction industry, focusing on radon and chemical vapor intrusion management.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Modern Purairmodernpurair.com HQ: Kelowna, BC, CanadaReported employees: 11-50 | Kelowna, BC, Canada | 11-50 | Exact match | 83 contacts → |
“Modern PURAIR® is your full-service Indoor Air Quality company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  ALC Environmentalalcenvironmental.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 82 contacts → |
“ALC provides a wide range of environmental services from testing and reporting on potentially unsafe or hazardous conditions (asbestos, lead paint, indoor air quality/mold, soil…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  A.J. Perriajperri.comHQ: Tinton Falls, NJ, United StatesReported employees: 201-500 | Tinton Falls, NJ, United States | 201-500 | Exact match | 80 contacts → |
“A.J.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Isolerab ABisolerab.se HQ: Borlänge, SwedenReported employees: 51-200 | Borlänge, Sweden | 51-200 | Exact match | 74 contacts → |
“Isolerab AB erbjuder villaägare en helhetslösning för ett friskare inomhusklimat och lägre energikostnader; Tilläggsisolering, Ventilation och Mögelbehandling.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Ektimo PTY LTDektimo.com.auHQ: Mitcham, AustraliaReported employees: 51-200 | Mitcham, Australia | 51-200 | Exact match | 72 contacts → |
“Experts in air quality, odour and emission monitoring.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | A&b Labsablabs.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 71 contacts → |
“A&B Environmental Services, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  AIR Hygiene International, INCairhygiene.comHQ: Tulsa, United StatesReported employees: 11-50 | Tulsa, United States | 11-50 | Exact match | 68 contacts → |
“AIR HYGIENE is known for providing professional services which include the following:* Providing superior, cost saving services to our clients!* High quality emission testing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Paradigm Environmental Services, INCparadigmenv.com HQ: Rochester, NY, United StatesReported employees: 51-200 | Rochester, NY, United States | 51-200 | Exact match | 60 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 |  WTIpureaircontrols.comHQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 57 contacts → |
“Is the health comfort and energy efficiency of facilities at risk?” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Technolabtechnolab.nl HQ: Berkel En Rodenrijs, NetherlandsReported employees: 11-50 | Berkel En Rodenrijs, Netherlands | 11-50 | Exact match | 50 contacts → |
“Technolab is de meest ervaren partner als het aankomt op zorgen voor een schone lucht, veilig water en goede materialen.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Sanair Technologies Laboratorysanair.com HQ: Richmond, VA, United StatesReported employees: 11-50 | Richmond, VA, United States | 11-50 | Exact match | 49 contacts → |
“SanAir Technologies Laboratory, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Skysideskyside.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 48 contacts → |
“At Skyside, we’re creating a brighter tomorrow through innovative air emissions and water testing practices.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,475 company matches
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Indoor air quality testing companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,466 records in the displayed employee bands.
9 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,475 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Indoor air quality testing companies by location
7 lists · largest firstEvery Indoor air quality testing 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 testing companies based in the United States684
- Indoor air quality testing companies based in Canada91
- Indoor air quality testing companies based in France69
- Indoor air quality testing companies based in the United Kingdom39
- Indoor air quality testing companies based in Finland27
- Indoor air quality testing companies based in Germany27
- Indoor air quality testing companies based in Australia26
Questions about this company list
What does Exact match mean for indoor air quality testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many indoor air quality testing companies did RevenueBase find worldwide?
The saved snapshot records 1,475 matching company records, 10,729 tracked contacts and 3,329 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 indoor air quality testing companies worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/indoor-air-quality-testing-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 indoor air quality testing companies worldwide
RevenueBase records 1,475 matching company records for indoor air quality testing companies worldwide, with 10,729 tracked contacts and 3,329 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 indoor air quality testing companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Emsl Analytical, INCemsl.com HQ: Cinnaminson, NJ, United StatesReported employees: 501-1,000 | Cinnaminson, NJ, United States | 501-1,000 | Exact match | 719 contacts → |
“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Igienairigienair.com HQ: Achères, FranceReported employees: 501-1,000 | Achères, France | 501-1,000 | Exact match | 237 contacts → |
“IGIENAIR : Spécialiste dans la maitrise et la surveillance de la Qualité de l'Air Intérieur (QAI)!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Hayward, CA, United StatesReported employees: 51-200 | Hayward, CA, United States | 51-200 | Exact match | 172 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Cleanair Engineeringcleanair.com HQ: Palatine, IL, United StatesReported employees: 51-200 | Palatine, IL, United States | 51-200 | Exact match | 152 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Envirolab Groupenvirolab.com.au HQ: Chatswood, AustraliaReported employees: 201-500 | Chatswood, Australia | 201-500 | Exact match | 130 contacts → |
“Envirolab Group offers a wide array of environment testing and analytical services to support investigations of inorganic and organic contaminants and pollutants.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Green Home Solutionsgreenhomesolutions.com HQ: Spring Mills, PA, United StatesReported employees: 11-50 | Spring Mills, PA, United States | 11-50 | Exact match | 127 contacts → |
“Green Home Solutions is proud to bring products and services for the quality indoor air you want for your home and family.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Pt. Medialab Indonesiamedialab.co.id HQ: Bekasi Regency, IndonesiaReported employees: 51-200 | Bekasi Regency, Indonesia | 51-200 | Exact match | 114 contacts → |
“PT Medialab Indonesia is a company specializes in laboratory services for environmental quality testing and Industrial Hygiene Monitoring.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | BGE Indoor AIR Quality Solutionsbgecleanair.com HQ: Edmonton, AB, CanadaReported employees: 51-200 | Edmonton, AB, Canada | 51-200 | Exact match | 108 contacts → |
“AT BGE, WE BELIEVE CLEAN AIR MATTERS BGE Indoor Air Quality Solutions is committed to keeping people healthy in their workplaces, buildings, and communities.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Airthingsairthings.com HQ: Oslo, NorwayReported employees: 51-200 | Oslo, Norway | 51-200 | Exact match | 102 contacts → |
“Airthings is a leading global technology company specializing in award-winning radon detectors and indoor air quality monitors for homes, workplaces, and schools.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Paracel Laboratories LTDparacellabs.com HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 100 contacts → |
“Paracel Laboratories Ltd.(Paracel) is one of the oldest, privately owned and operated environmental testing companies in Canada.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | A-Tech Consulting, INCatechinc.net HQ: Orange, CA, United StatesReported employees: 51-200 | Orange, CA, United States | 51-200 | Exact match | 97 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Conforlabconforlab.com.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 93 contacts → |
“A Conforlab cuida do invisível para proteger o que é essencial.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Protect Environmentalprotectenvironmental.com HQ: Louisville, KY, United StatesReported employees: 201-500 | Louisville, KY, United States | 201-500 | Exact match | 84 contacts → |
“Protect Environmental is a national leader in the environmental consulting and construction industry, focusing on radon and chemical vapor intrusion management.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Modern Purairmodernpurair.com HQ: Kelowna, BC, CanadaReported employees: 11-50 | Kelowna, BC, Canada | 11-50 | Exact match | 83 contacts → |
“Modern PURAIR® is your full-service Indoor Air Quality company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ALC Environmentalalcenvironmental.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 82 contacts → |
“ALC provides a wide range of environmental services from testing and reporting on potentially unsafe or hazardous conditions (asbestos, lead paint, indoor air quality/mold, soil…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | A.J. Perriajperri.com HQ: Tinton Falls, NJ, United StatesReported employees: 201-500 | Tinton Falls, NJ, United States | 201-500 | Exact match | 80 contacts → |
“A.J.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Isolerab ABisolerab.se HQ: Borlänge, SwedenReported employees: 51-200 | Borlänge, Sweden | 51-200 | Exact match | 74 contacts → |
“Isolerab AB erbjuder villaägare en helhetslösning för ett friskare inomhusklimat och lägre energikostnader; Tilläggsisolering, Ventilation och Mögelbehandling.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ektimo PTY LTDektimo.com.au HQ: Mitcham, AustraliaReported employees: 51-200 | Mitcham, Australia | 51-200 | Exact match | 72 contacts → |
“Experts in air quality, odour and emission monitoring.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | A&b Labsablabs.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 71 contacts → |
“A&B Environmental Services, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | AIR Hygiene International, INCairhygiene.com HQ: Tulsa, United StatesReported employees: 11-50 | Tulsa, United States | 11-50 | Exact match | 68 contacts → |
“AIR HYGIENE is known for providing professional services which include the following:* Providing superior, cost saving services to our clients!* High quality emission testing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Paradigm Environmental Services, INCparadigmenv.com HQ: Rochester, NY, United StatesReported employees: 51-200 | Rochester, NY, United States | 51-200 | Exact match | 60 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | WTIpureaircontrols.com HQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 57 contacts → |
“Is the health comfort and energy efficiency of facilities at risk?” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Technolabtechnolab.nl HQ: Berkel En Rodenrijs, NetherlandsReported employees: 11-50 | Berkel En Rodenrijs, Netherlands | 11-50 | Exact match | 50 contacts → |
“Technolab is de meest ervaren partner als het aankomt op zorgen voor een schone lucht, veilig water en goede materialen.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Sanair Technologies Laboratorysanair.com HQ: Richmond, VA, United StatesReported employees: 11-50 | Richmond, VA, United States | 11-50 | Exact match | 49 contacts → |
“SanAir Technologies Laboratory, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Skysideskyside.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 48 contacts → |
“At Skyside, we’re creating a brighter tomorrow through innovative air emissions and water testing practices.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Indoor air quality testing companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,466 records in the displayed employee bands.
9 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,475 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Indoor air quality testing companies by location
7 lists · largest firstEvery Indoor air quality testing 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 testing companies based in the United States684
- Indoor air quality testing companies based in Canada91
- Indoor air quality testing companies based in France69
- Indoor air quality testing companies based in the United Kingdom39
- Indoor air quality testing companies based in Finland27
- Indoor air quality testing companies based in Germany27
- Indoor air quality testing companies based in Australia26
Questions about this company list
What does Exact match mean for indoor air quality testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many indoor air quality testing companies did RevenueBase find worldwide?
The saved snapshot records 1,475 matching company records, 10,729 tracked contacts and 3,329 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 indoor air quality testing companies worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/indoor-air-quality-testing-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗