Company lists · Data refreshed September 2026
Top 25 Sustainable development nonprofits based in Belgium
RevenueBase identified 86 sustainable development nonprofits headquartered in Belgium as of September 2026 and tracks 845 professional contacts across them, including 318 with verified work emails. Brussels is the largest hub.
This list covers sustainable development nonprofits headquartered in Belgium, 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 22, 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 sustainable development nonprofits based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 93 contacts → | ||||
Indirect evidence “Louvain Coopération improves the living conditions of thousands of people every year by systematically collaborating with 140 local partners in medium- to long-term processes in…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 91 contacts → | ||||
Indirect evidence “GoodPlanet est une association qui existe depuis plus de 25 ans et qui a à cœur de rendre le premier pas vers la durabilité facile et accessible à toutes et tous.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 80 contacts → | ||||
Indirect evidence “WWF is a global independent organization for nature conservation.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 44 contacts → | ||||
Indirect evidence “Groupe One est une asbl qui a pour objectif d'activer le changement vers une économie plus agile, robuste et durable Notre action se décline en 3 axes : 1.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 43 contacts → | ||||
Indirect evidence “SAM zet zich in voor een sociaal rechtvaardige en duurzame samenleving die voor iedereen de grondrechten garandeert en gaat voor een kwaliteitsvol leven.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 38 contacts → | ||||
Indirect evidence “Regionaal Landschap Kempen en Maasland vzw bouwt als samenwerkingsverband al meer dan 30 jaar aan een landschap waarin we natuur, erfgoed én mens respectvol verbinden en de nodige…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 30 contacts → | ||||
Strong evidence “Founded in 1998, the Foundation for Future Generations is the Belgian foundation dedicated exclusively to sustainable development.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 contacts → | ||||
Indirect evidence “Association sans but lucratif groupant des jeunes et des adultes intéressés par l’étude de la nature, sa conservation, la protection de l’environnement et le tourisme intégré.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 19 contacts → | ||||
Indirect evidence “Hoe leren kinderen en jongeren omgaan met maatschappelijke uitdagingen zoals klimaatverandering, sociale rechtvaardigheid en mensenrechten?” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 contacts → | ||||
Indirect evidence “Wij geloven in een duurzame toekomst voor mens en organisatie.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 contacts → | ||||
Indirect evidence “Empreintes inscrit son action dans l’éducation relative à l’environnement.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 12 contacts → | ||||
Indirect evidence “De Transformisten builds a society where everyone can live a good life within the limits of people and the planet.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 contacts → | ||||
Partial evidence “At AJ, we are on a mission to empower organizations and individuals to embrace sustainability and make a positive impact on the environment.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 contacts → | ||||
Indirect evidence “L'asbl ERU est active en matière d’urbanisme et de développement durable.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 contacts → | ||||
Indirect evidence “Écotopie est une association d’éducation permanente, composée de formateurs-chercheurs, engagée pour une transformation de la société en s’appuyant sur une éducation relative à…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 9 contacts → | ||||
Indirect evidence “Depuis plus de 20 ans, l’association sans but lucratif belge Nature+ est spécialisée dans la gestion durable des ressources naturelles, en particulier des écosystèmes forestiers…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Indirect evidence “Notre association existe depuis 1976 et maintient, au fil du temps, deux axes stratégiques, profondément ancrés dans notre ADN-> Un axe social, avec nos formations pour un public…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Indirect evidence “VIBE ondersteunt jouw organisatie om te ontwerpen en te bouwen in harmonie met de natuur en de mens.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Indirect evidence “Forêt.Nature is a non-profit organization based in Southern Belgium and founded in 1987 by passionated foresters who wished to raise public awareness of the complexity of fo- rest…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 8 contacts → | ||||
Indirect evidence “Education-Environnement est une association qui vise à sensibiliser chacun à vivre une relation plus proche avec la Nature et avec son environnement local, l’aider à comprendre la…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Indirect evidence “Apis se veut acteur incontournable de convergence et de changements au service du projet sociétal de la Ville Nature.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Partial evidence “What if we would build a sustainable economy and support us all in our most important needs.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Strong evidence “CleanTechPunt vzw strives to increase public support for the necessary development of sustainable technology by organising educational activities for schools, businesses…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence “La mission de notre ASBL est de contribuer, par et pour les jeunes, au développement de leurs responsabilités et aptitudes personnelles en vue de les aider à devenir des Citoyens…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “The ASBL Aktina is active in the fields of ecology, health and information technology through a range of awareness-raising, training and creative activities.” Source: RevenueBase Database · checked Sep 22, 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: sustainable development 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 sustainable development nonprofits.
- Partial evidence
- Its own public description names part of sustainable development nonprofits, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name sustainable development 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 86 sustainable development nonprofits based in Belgium
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Sustainable development nonprofits based in Belgium at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 86 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 sustainable development 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 Belgium whose own description of what they do matches “sustainable development 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 sustainable development 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 sustainable development nonprofits, and records with no verified work email. Companies headquartered outside Belgium 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, 318 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 22, 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.
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 sustainable development 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 sustainable development nonprofits are there based in Belgium?
RevenueBase identified 86 sustainable development nonprofits headquartered in Belgium 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?
Louvain Coopération, headquartered in Belgium, tops this list with the largest team on record.
Which city has the most sustainable development nonprofits?
Brussels leads with 9 headquartered companies, followed by Bruxelles (6) and Leuven (5).
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 318 verified decision-maker contacts tracked across these 86 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 22, 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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