Company lists · Data refreshed September 2026
Top 25 Environmental policy advocacy groups worldwide
RevenueBase identified 891 environmental policy advocacy groups worldwide as of September 2026 and tracks 16,931 professional contacts across them, including 5,816 with verified work emails. The United States is the largest market and Washington the largest hub.
This list covers environmental policy 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 environmental policy 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 environmental policy advocacy groups worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,945 contacts → | ||||
Indirect evidence “Greenpeace is comprised of 25 independent national/regional organisations in over 55 countries across Europe, the Americas, Africa, Asia and the Pacific, as well as a…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 942 contacts → | ||||
Partial evidence “NRDC is the nation's most effective environmental action organization.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 672 contacts → | ||||
Indirect evidence “Earthjustice is a non-profit public interest law organization dedicated to protecting the magnificent places, natural resources, and wildlife of this earth, and to defending the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 324 contacts → | ||||
Indirect evidence “We are a non-profit using the power of the law to bring about end-to-end systemic change: informing, implementing and enforcing the law, drafting and advising decision-makers on…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 246 contacts → | ||||
Partial evidence “The Swedish Society for Nature Conservation (SSNC) is an environmental organization with power to bring about change.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 241 contacts → | ||||
Partial evidence “Ceres is a nonprofit advocacy organization working to accelerate the transition to a cleaner, more just, and resilient world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 240 contacts → | ||||
Indirect evidence “Real hope.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 222 contacts → | ||||
Strong evidence “The Centre for Science and Environment (CSE) is a public interest research and advocacy organisation based in New Delhi.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 218 contacts → | ||||
Indirect 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. | |||||
| 10 | 210 contacts → | ||||
Indirect evidence “Onze missie?” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 201 contacts → | ||||
Partial evidence “Legambiente is the most widespread environmental organization in Italy.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 174 contacts → | ||||
Indirect evidence “Since 1966, CLF has taken on powerful opponents who would pollute our air and water and squander our resources.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 167 contacts → | ||||
Partial evidence “Greenpeace is an independent global campaigning network that acts to change attitudes and behaviour, to protect and conserve the environment and to promote peace.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 144 contacts → | ||||
Partial evidence “EARTHDAY.ORG’s mission is to diversify, educate and activate the environmental movement worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 133 contacts → | ||||
Partial evidence “The Bellona Foundation is an independent, non profit, science based environmental organization, founded in 1986.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 131 contacts → | ||||
Partial evidence “We’re the Australian Conservation Foundation, Australia’s national environment organisation.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 126 contacts → | ||||
Indirect evidence “Die Deutsche Umwelthilfe ist ein gemeinnütziger Natur, Umwelt- und Verbraucherschutzverband.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 126 contacts → | ||||
Partial evidence “Solutions for Our Climate (SFOC) is an international climate advocacy organization founded in 2016 dedicated to accelerating effective climate action and energy transition across…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 120 contacts → | ||||
Partial evidence “The Environmental Working Group is a non-profit, non-partisan organization dedicated to protecting human health and the environment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 114 contacts → | ||||
Indirect evidence “The Public Interest Network runs organizations committed to our vision of a better world, a set of core values, and a strategic approach to getting things done.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 98 contacts → | ||||
Indirect evidence “Protecting, promoting and restoring wilderness and natural processes across Australia for the survival and ongoing evolution of life on Earth.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 93 contacts → | ||||
Indirect evidence “Every day, we see more heartbreaking evidence of the damage being done to our planet: climate change, plastic pollution, wildlife disappearing forever.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 92 contacts → | ||||
Indirect evidence “Porte-parole d'un mouvement de plus de 8 associations, regroupées au sein de 48 associations adhérentes, France Nature Environnement est la plus grande fédération française des…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 87 contacts → | ||||
Partial evidence “The American Conservation Coalition (ACC) is a 501(c)(3) nonprofit organization dedicated to mobilizing people around environmental action through common-sense, market-based, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 85 contacts → | ||||
Partial evidence “Ecojustice uses the power of the law to defend nature, combat climate change, and fight for a healthy environment.” 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: environmental policy 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 environmental policy advocacy groups.
- Partial evidence
- Its own public description names part of environmental policy advocacy groups, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name environmental policy 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 891 environmental policy advocacy groups worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 5,816 reachable decision-makers.
Free signup · no credit card
Environmental policy 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 environmental policy 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 environmental policy advocacy groups are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “environmental policy 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 environmental policy 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 environmental policy 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, 5,816 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.
Environmental policy advocacy groups by location
4 lists · largest firstEvery Environmental policy 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 environmental policy 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 environmental policy advocacy groups are there worldwide?
RevenueBase identified 891 environmental policy 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?
Greenpeace, headquartered in Amsterdam, tops this list with the largest team on record.
Which country has the most environmental policy advocacy groups?
The United States leads with 278 companies, followed by India (52) and Canada (44). Every environmental policy advocacy groups list by country and city is linked on this page.
Which city has the most environmental policy advocacy groups?
Washington leads with 32 headquartered companies, followed by London (14) and Paris (14).
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 5,816 verified decision-maker contacts tracked across these 891 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.
Ready to reach these companies? Verified emails and direct dials for all 891 environmental policy advocacy groups worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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.