Company lists · Data refreshed November 2026

Top 25 Sustainable development consultants based in Belgium

RevenueBase identified 165 company matches for sustainable development consultants associated with Belgium as of November 2026 and tracks 2,844 professional contacts across them, including 738 with verified work emails. Brussels is the largest hub.

This list covers company matches for sustainable development consultants associated with Belgium, 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 November 6, 2026.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
165Companies
2,844Contacts tracked
738Verified emails
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The 25 largest sustainable development consultants based in Belgium

Ranked by team size
Top 25 of 165 company matches for sustainable development consultants based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLouvain-la-neuve, BelgiumHQ recorded Nov 6, 2026n/a596 contacts →

Exact match

“ADE is a consultancy providing independent advice for contributing to improve public decision-making.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBrussels, BelgiumHQ recorded Nov 6, 202651-200257 contacts →

Exact match

“GOPA PACE (GOPA Partners in Action for Change and Engagement S.A.) changed its name to GOPA Pro S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBrussels, BelgiumHQ recorded Nov 6, 202651-200146 contacts →

Exact match

“AESA is a leading European management consultancy, providing technical assistance and project management services in Low and Middle income countries as well as in Transition…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBilzen, BelgiumHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“Encon supports businesses as an independent agency with creative and innovative solutions in their transition to become more sustainable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGhent, BelgiumHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“In forty years Bopro has emerged into a solid, renowned company specialised in Sustainable Real Estate Development, Project Management and Consultancy services in Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNamur, BelgiumHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“Our background The Institut de Conseil et d'Etudes en Développement Durable (Institute for Consultancy and Studies in Sustainable Development) was founded in 1961 as a non-profit…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“SuReal is an independent firm of engineer-architects and engineers with expertise in Integrated Sustainability in the real estate sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBeringen, BelgiumHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Bij ons draait alles om jou als ondernemer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchZwevegem, BelgiumHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“Consultes is een allround partner voor bedrijven op vlak van milieu, preventie, energie en duurzaamheid.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Sustenuto is a strategic consulting firm that helps organisations make a difference in society by integrating sustainability at the core of their business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Our mission is to support decision-making towards a sustainable world." – Bernard De Caevel, Founder of RDC Environment For more than 30 years, RDC Environment has been helping…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPont-à-celles, BelgiumHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“DR(EA)²M est un bureau d’études spécialisé dans les matières du développement territorial, de l’aménagement urbain et paysager, de l’environnement, de l’architecture et de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSaint-gilles, BelgiumHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“EcoRes is a sustainable development support and consultancy cooperative that assists companies, public organisations and territories in the transition towards a regenerative…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“In a time of ecological challenges and economic uncertainty, businesses play a pivotal role in keeping society stable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“World's gone nuts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBeringen, BelgiumHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Wij bij Exergie, willen de wereld verduurzamen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchIxelles, BelgiumHQ recorded Nov 6, 20261-1015 contacts →

Exact match

“At AJ, we are on a mission to empower organizations and individuals to embrace sustainability and make a positive impact on the environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAntwerp, BelgiumHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“The Ecological Entrepreneur is a sustainability advisor specialised in guiding companies, sector federations and organisations, in the transition towards sustainable compliant…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchWavre, BelgiumHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“CAP CONSEIL is a private company specialized in research and consultancy services relating to social responsibility, sustainable development, governance and business ethics.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchIxelles, BelgiumHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Impact Valley helps organisations create sustainable, positive change through collaborative innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLouvain-la-neuve, BelgiumHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“ADVISTA est un bureau d’études et de conseils en environnement et développement durable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMerelbeke, BelgiumHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Quest is a global impact consultancy for sustainable transformation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLeuven, BelgiumHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Duurzaamheidsbeleid & advies Studio D helpt u met het opstellen van een duurzaamheidsstrategie en -beleid.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBrussels, BelgiumHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“21 Solutions is a consulting firm active in Belgium, France, and internationally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBrussels, BelgiumHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“BetterBusiness' mission is to support micro and small businesses in integrating sustainability at the heart of their growth strategy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 165 sustainable development consultants based in Belgium

See the full list, filter by size, metro and specialty, and access 738 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainable development consultants based in Belgium at a glance

As of Nov 6, 2026
25.9%Verified-email coverage
17.2Average contacts per company
1-10Median size (employees)
22.4%Largest-city concentration · Brussels
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
114
11-50
40
51-200
11

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 165 companies.

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.
What qualifies
Company records associated with Belgium whose business descriptions match “sustainable development consultants” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 738 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 November 6, 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.

Sustainable development consultants by metro

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 “sustainable development consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainable development consultants are there based in Belgium?

RevenueBase identified 165 company matches for sustainable development consultants associated with Belgium as of November 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?

ADE tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most sustainable development consultants?

Brussels leads with 37 company records, followed by Antwerp (9) and Liege (8).

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 738 professional contacts with verified work emails tracked across these 165 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 November 6, 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 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.