Company lists · Data refreshed September 2026
Top 25 Air quality advocacy groups worldwide
RevenueBase identified 404 air quality advocacy groups worldwide as of September 2026 and tracks 4,791 professional contacts across them, including 1,334 with verified work emails. The United States is the largest market and London the largest hub.
This list covers air quality advocacy groups 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 advocacy groups 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 advocacy groups worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 236 contacts → | ||||
Strong evidence “The San Joaquin Valley Air Pollution Control District (Valley Air District) is committed to improving the health and quality of life for all Valley residents through effective and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 218 contacts → | ||||
Partial evidence “LCV believes our earth is worth fighting for because everyone has a right to clean air, water, and a safe, healthy community.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 106 contacts → | ||||
Partial evidence “Clean Air Fund is a global philanthropic organisation working with governments, funders, business and campaigners to create a future where everyone can breathe clean air We fund…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 87 contacts → | ||||
Strong evidence “The San Diego County Air Pollution Control District (District) strives to protect the public from the harmful effects of air pollution, achieve and maintain air quality standards…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 83 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 83 contacts → | ||||
Strong evidence “Clean Air Asia is an international non-governmental organization leading the regional mission for better air quality, and healthier, more livable cities throughout Asia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 80 contacts → | ||||
Indirect evidence “Wij zijn Natuur & Milieu, een naam die zegt wat we doen.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 68 contacts → | ||||
Strong evidence “Airparif is the approved association for air quality monitoring in the Paris region.[Our missions]> To monitor the air breathed by the people of Paris Region, thanks to a robust…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 65 contacts → | ||||
Partial evidence “Our purpose is to provide healthy indoor air, sustainably.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 61 contacts → | ||||
Strong evidence “Atmo Hauts-de-France, l’Observatoire de l’air régional, agit depuis plus de 45 ans pour surveiller, comprendre et améliorer la qualité de l’air que nous respirons.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 61 contacts → | ||||
Indirect evidence “Our Children’s Trust is a 501(c)(3) non-profit organization that elevates the voice of youth and leads the federal, state, local, and international campaign to secure the legal…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 57 contacts → | ||||
Partial evidence “The Clean Air Council is a member-supported, nonprofit environmental organization dedicated to protecting everyone's right to breathe clean air.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 49 contacts → | ||||
Partial evidence “Votre observatoire engagé pour un air meilleur!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 45 contacts → | ||||
Strong evidence “Founded in 2019, A-PAG (also known as FIQL - Foundation for Improving the Quality of Life) is a non-profit philanthropic foundation working with the vision of improving air…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 41 contacts → | ||||
Partial evidence “The mission of the Ohio Environmental Council (OEC) is to secure healthy air, land, and water for all who call Ohio home.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 40 contacts → | ||||
Strong evidence “HEI is a nonprofit corporation chartered in 1980 as an independent research organization to provide high-quality, impartial, and relevant science on the health effects of air…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 38 contacts → | ||||
Indirect evidence “Respiratory Health Association is a 501(c)(3) charitable organization and has been a public health leader in metropolitan Chicago since 1906.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 38 contacts → | ||||
Strong evidence “ATMO Occitanie est l’organisme régional agréé par le Ministère de l’environnement pour surveiller, évaluer, prévoir et informer chacun sur la qualité de l’air qu’il respire.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 35 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 34 contacts → | ||||
Partial evidence “Transforming Air, Transforming Lives!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 34 contacts → | ||||
Indirect evidence “CleanEarth4Kids #CleanAirSavesLives #WaterIsLife #StopToxics #ChildrensHealth #PublicHealth #Education #Research,#ClimateActionNow #EnvironmentalJustice,#PreventCancerandDisease…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 33 contacts → | ||||
Indirect evidence “We are Airly.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 33 contacts → | ||||
Partial evidence “Founded in 1903, Breathe Southern California (Breathe SoCal) is a 501(c)(3) local public benefit nonprofit organization committed to clean air and healthy lungs for all Southern…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 31 contacts → | ||||
Partial evidence “Citizens for Pennsylvania’s Future (PennFuture) is a member-supported, statewide environmental advocacy nonprofit and watchdog fighting against potential threats to PA's clean…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 31 contacts → | ||||
Indirect evidence “The Michigan Environmental Council – a 501(c)(3) charitable organization – is a coalition of nearly 80 organizations created in 1980 to lead Michigan’s environmental movement in…” 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 advocacy groups. 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 advocacy groups.
- Partial evidence
- Its own public description names part of air quality advocacy groups, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name air quality advocacy groups. 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 404 air quality advocacy groups worldwide
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Air quality advocacy groups 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 advocacy groups, 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 advocacy groups are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “air quality advocacy groups”. 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 advocacy groups), 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 advocacy groups, 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, 1,334 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 advocacy groups by location
3 lists · largest firstEvery Air quality advocacy groups list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 advocacy groups, 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 advocacy groups are there worldwide?
RevenueBase identified 404 air quality advocacy groups 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?
SAN Joaquin Valley AIR Pollution Control District, headquartered in Fresno, tops this list with the largest team on record.
Which country has the most air quality advocacy groups?
The United States leads with 127 companies, followed by the United Kingdom (32) and France (25). Every air quality advocacy groups list by country and city is linked on this page.
Which city has the most air quality advocacy groups?
London leads with 16 headquartered companies, followed by Paris (7) and New Delhi (6).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,334 verified decision-maker contacts tracked across these 404 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.