Company lists · Data refreshed August 2026

Top 25 Climate resilience consulting firms based in Belgium

RevenueBase identified 103 climate resilience consulting firms headquartered in Belgium as of August 2026 and tracks 970 professional contacts across them, including 434 with verified work emails and 25 with mobile numbers. Brussels is the largest hub.

This list covers climate resilience consulting firms 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 August 31, 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.

How to read this list RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review
103Companies
970Contacts tracked
434Verified emails
25Mobile numbers
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The 25 largest climate resilience consulting firms based in Belgium

Ranked by team size
Top 25 of 103 climate resilience consulting firms based in Belgium, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to climate resilience consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNamur, Belgium201-500220 contacts →

Partial evidence

“Antea Group is an international consulting and engineering firm, specializing in full-service solutions in the fields of environment, infrastructure, public space, and water.”

Source: RevenueBase Database · checked Aug 31, 2026
2Indirect evidenceBrussels, Belgium51-200127 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Aug 31, 2026
3Partial evidenceBelgium11-5064 contacts →

Partial evidence

CLIMACT empowers organizations, cities and public authorities to understand climate change and to achieve a zero-carbon sustainable society by 2050.”

Source: RevenueBase Database · checked Aug 31, 2026
4Indirect evidenceZaventem, Belgium11-5050 contacts →

Indirect evidence

“Nexio Projects is an international consultancy firm, helping organisations reach their sustainability ambitions.”

Source: RevenueBase Database · checked Aug 31, 2026
5Partial evidenceBruxelles, Belgium11-5050 contacts →

Partial evidence

“Established in 1989, Baastel is a global consulting firm specializing in sustainable development, with offices in Gatineau (Canada), Brussels (Belgium) and Paris (France).”

Source: RevenueBase Database · checked Aug 31, 2026
6Indirect evidenceVedrin, Belgium11-5038 contacts →

Indirect evidence

“SHER Ingénieurs-Conseils, a Belgian engineering consultancy office and member of the Artelia Group, provides its services worldwide for projects related to water, human and animal…”

Source: RevenueBase Database · checked Aug 31, 2026
7Indirect evidenceAntwerp, Belgium11-5034 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
8Partial evidenceBelgium11-5024 contacts →

Partial evidence

“CO2logic joined the South Pole Group in 2021, forming the world’s largest climate solutions provider and carbon project developer.”

Source: RevenueBase Database · checked Aug 31, 2026
9Indirect evidenceBruxelles, Belgium11-5023 contacts →

Indirect evidence

“We are crafters.”

Source: RevenueBase Database · checked Aug 31, 2026
10Indirect evidenceBrussels, Belgium11-5020 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
11Indirect evidenceBrussels, Belgium11-5018 contacts →

Indirect evidence

“World's gone nuts.”

Source: RevenueBase Database · checked Aug 31, 2026
12Partial evidenceBelgium1-1015 contacts →

Partial evidence

“PM makes individuals, teams and organizations more resilient to manage crisis situations.”

Source: RevenueBase Database · checked Aug 31, 2026
13Indirect evidenceLovenjoel, Belgium11-5014 contacts →

Indirect evidence

“Wij bij Exergie, willen de wereld verduurzamen.”

Source: RevenueBase Database · checked Aug 31, 2026
14Indirect evidenceLouvain-La-Neuve Bruxelles, Belgium1-1013 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
15Indirect evidenceBelgium11-5011 contacts →

Indirect evidence

“Gevelinzicht is een gespecialiseerd studiebureau met ervaring en expertise op vlak van technisch gevelontwerp, bouwfysica, duurzaam bouwen en energieprestaties van gebouwen.”

Source: RevenueBase Database · checked Aug 31, 2026
16Partial evidenceMechelen, Belgium11-5011 contacts →

Partial evidence

“CS & A International is a specialist Risk and Crisis Management Consultancy focusing on enabling crisis resilience for our international clients.”

Source: RevenueBase Database · checked Aug 31, 2026
17Partial evidenceBrussels Brussels, Belgium1-1010 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
18Indirect evidenceYvoir, Belgium11-5010 contacts →

Indirect evidence

“Watt Else is a consultancy company specialised in sustainable energy and energy transition.”

Source: RevenueBase Database · checked Aug 31, 2026
19Indirect evidenceLeuven, Belgium1-108 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
20Indirect evidenceBrussels, Belgium1-108 contacts →

Indirect evidence

“Prospect C&S is an independent Brussels-based consultancy.”

Source: RevenueBase Database · checked Aug 31, 2026
21Indirect evidenceBerchem, Belgium11-508 contacts →

Indirect evidence

“Uw betrouwbare partner voor bedrijfsstrategie en -implementatietrajecten, ESG-beleid, CSRD- en duurzaamheidsrapportering, risico management en brede operationele ondersteuning in…”

Source: RevenueBase Database · checked Aug 31, 2026
22Partial evidenceLeuven, Belgium11-506 contacts →

Partial evidence

“There’s climate technology.”

Source: RevenueBase Database · checked Aug 31, 2026
23Indirect evidenceGhent, Belgium1-105 contacts →

Indirect evidence

“We are Scopernia, a consultancy boutique specializing in strategic advice.”

Source: RevenueBase Database · checked Aug 31, 2026
24Indirect evidenceKortrijk, Belgium1-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Aug 31, 2026
25Indirect evidenceBrussels, Belgium1-104 contacts →

Indirect evidence

“Willow is a sustainability advisory firm working with awesome companies in a variety of fascinating fields, from impact investing to retail, fashion, and telecommunications.”

Source: RevenueBase Database · checked Aug 31, 2026

Showing 25 of 103 climate resilience consulting firms based in Belgium

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Climate resilience consulting firms based in Belgium at a glance

As of Aug 31, 2026
44.7%Verified-email coverage
2.6%Mobile-number coverage
9.4Average contacts per company
1-10Median size (employees)
19.4%Largest-city concentration · Brussels
Aug 31, 2026Page data refreshed

Companies by employee count

1-10
78
11-50
23
51-200
1
201-500
1

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 climate resilience consulting firms, 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 “climate resilience consulting firms”. 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 climate resilience consulting firms), 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 climate resilience consulting firms, 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, 434 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 August 31, 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 climate resilience consulting firms, 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 climate resilience consulting firms are there based in Belgium?

RevenueBase identified 103 climate resilience consulting firms headquartered in Belgium as of August 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?

Antea Group Belgium, headquartered in Namur, tops this list with the largest team on record.

Which city has the most climate resilience consulting firms?

Brussels leads with 20 headquartered companies, followed by Antwerp (5) and Liege (4).

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 434 verified decision-maker contacts tracked across these 103 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.