Company lists · Data refreshed September 2026
Top 25 Environmental nonprofits based in Poland
RevenueBase identified 143 environmental nonprofits headquartered in Poland as of September 2026 and tracks 918 professional contacts across them, including 355 with verified work emails. Warszawa is the largest hub.
This list covers environmental nonprofits headquartered in Poland, 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.
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 nonprofits based in Poland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 218 contacts → | ||||
Indirect evidence “ENERIS to ogólnopolska firma działająca w obszarze ochrony środowiska.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 71 contacts → | ||||
Partial evidence “WWF's mission is to stop the degradation of our planet's natural environment, and build a future in which humans live in harmony with nature.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 58 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 16 contacts → | ||||
Indirect evidence “Our mission is clear, to lead pro-climate changes and decarbonization efforts among businesses, municipalities, and stakeholders.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 15 contacts → | ||||
Indirect evidence “Związek Stowarzyszeń Polska Zielona Sieć jest ogólnopolską organizacją pozarządową o statusie organizacji pożytku publicznego, działającą na rzecz zrównoważonego rozwoju, ochrony…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 14 contacts → | ||||
Indirect evidence “Fundacja Las Na Zawsze powstała w 2019 roku, by wspierać odbudowę bioróżnorodnych lasów i zapewnić im bezpieczną przyszłość - by mogły rosnąć Na Zawsze.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 13 contacts → | ||||
Indirect evidence “Sendzimir Foundation's mission is to promote sustainable development through the promotion and practical implementation of the objectives, principles, values and tools related to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 13 contacts → | ||||
Indirect evidence “Greenpeace przeciwstawia się niszczeniu środowiska naturalnego od 1971 roku, kiedy to grupa aktywistów protestowała przeciwko testom nuklearnym przeprowadzanym przez rząd Stanów…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 12 contacts → | ||||
Indirect evidence “Fundacja Ślad Węglowy, założona w 2019 roku, to odpowiedź na wyzwania ekologiczne i klimatyczne, przed którymi stoi świat.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 11 contacts → | ||||
Partial evidence “Buy Responsibly Foundation is a nationwide organization focusing on sustainable development and environmental protection, responsible consumption and production, as well as…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 10 contacts → | ||||
Indirect evidence “Kancelaria Ekologiczna Marcin Kaźmierski, wspiera przedsiębiorstwa i jednostki administracji publicznej w kwestiach związanych z szeroko pojętą ochroną środowiska, w aspektach-…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 9 contacts → | ||||
Indirect evidence “Fundacja Odzyskaj Środowisko powstała w 2011 roku.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 9 contacts → | ||||
Indirect evidence “Polskie Stowarzyszenie Zero Waste działa na rzecz zmiany świadomości społecznej dotyczącej zasobów, zapobiegając powstawaniu odpadów u źródła, promując bezodpadowy styl życia oraz…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “Centrum Ochrony Mokradeł realizuje swoją misję już od 25 lat.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Indirect evidence “Polska Izba Ekologii jest organizacją samorządu gospodarczego.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Indirect evidence “Jesteśmy organizacją, która powstała po to, aby łączyć ludzi z naturą.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “Firma EKO-PROJEKT świadczy kompleksowe usługi doradcze w zakresie ochrony środowiska.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Partial evidence “We are active on two significant fronts: humanity and the environment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Partial evidence “For over 25 years we work on environmental protection in companies and other organisations, working out for them - and together with them - environmentally and economically…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Indirect evidence “Lasy i Obywatele to fundacja wspierająca oddolne inicjatywy obywatelskie angażujące się w ochronę lasów i przyrody.* Budujemy skalowalne narzędzia oraz mechanizmy wsparcia dla…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Partial evidence “Our mission is to ensure the high quality of natural and cultural environment for all Beings - both wildlife and people.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Indirect evidence “Jesteśmy polską organizacją pozarządowa działająca od 2006 roku.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Partial evidence “One More Tree Foundation was founded by two friends with the goal of combating climate change through pro-environmental actions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “Packman Sp.” 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 nonprofits. 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 nonprofits.
- Partial evidence
- Its own public description names part of environmental nonprofits, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name environmental nonprofits. 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 143 environmental nonprofits based in Poland
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Environmental nonprofits based in Poland at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Poland, so it is reported there. Company counts and contact totals on this page are exact for Poland, over 143 companies.
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 nonprofits, 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.
- What qualifies
- Companies headquartered in Poland whose own description of what they do matches “environmental nonprofits”. 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 nonprofits), 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 nonprofits, and records with no verified work email. Companies headquartered outside Poland are excluded even when they keep an office there.
- 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, 355 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 nonprofits by metro
- Environmental nonprofits in Warszawa30
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 nonprofits, 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 nonprofits are there based in Poland?
RevenueBase identified 143 environmental nonprofits headquartered in Poland 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?
Eneris, headquartered in Warszawa, tops this list with the largest team on record.
Which city has the most environmental nonprofits?
Warszawa leads with 30 headquartered companies, followed by Poznan (11) and Wroclaw (11).
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 355 verified decision-maker contacts tracked across these 143 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.
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