Company lists · Data refreshed September 2026

Top 25 Net zero consulting firms based in Belgium

RevenueBase identified 70 company matches for net zero consulting firms associated with Belgium as of September 2026 and tracks 632 professional contacts across them, including 239 with verified work emails and 21 with mobile numbers. Brussels is the largest hub.

This list covers company matches for net zero consulting firms 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 September 5, 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 Sep 5, 2026 How this list was built
70Companies
632Contacts tracked
239Verified emails
21Mobile numbers
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The 25 largest net zero consulting firms based in Belgium

Ranked by team size
Top 25 of 70 company matches for net zero consulting firms based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 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 matchBrussels, BelgiumHQ recorded Sep 5, 202651-20076 contacts →

Exact match

“Founded in 2006, HINICIO is a strategic consulting firm specialized in the decarbonization challenges of hard-to-abate sectors, with more than 20 years of experience in hydrogen…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2Exact matchBrussels, BelgiumHQ recorded Sep 5, 202611-5064 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3Exact matchRemicourt, BelgiumHQ recorded Sep 5, 202651-20051 contacts →

Exact match

“Fondée en 2016 par deux frères, Sébastien et Michael Menu et issue de l'Université de Liège, Broptimize est aujourd'hui la référence en matière d'accompagnement dans la transition…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4Exact matchBrussels, BelgiumHQ recorded Sep 5, 202611-5029 contacts →

Exact match

“Tapio helps businesses understand and reduce their carbon footprint through a carbon management software and a team of experts.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5Exact matchBrussels, BelgiumHQ recorded Sep 5, 202611-5024 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6Exact matchBrussels, BelgiumHQ recorded Sep 5, 202611-5024 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 · Sep 5, 2026 · View company records in RevenueBase
7Exact matchBrussels, BelgiumHQ recorded Sep 5, 202611-5023 contacts →

Exact match

“Driven by the urgency of climate action, D-Carbonize helps industrial companies turn decarbonization into a lever for performance.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8Exact matchAntwerp, BelgiumHQ recorded Sep 5, 2026201-50023 contacts →

Exact match

“Helexia is your all-in-one partner for accelerating your energy transition.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9Exact matchBrussels, BelgiumHQ recorded Sep 5, 202611-5020 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 · Sep 5, 2026 · View company records in RevenueBase
10Exact matchBrussels, BelgiumHQ recorded Sep 5, 202611-5018 contacts →

Exact match

“World's gone nuts.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11Exact matchBeringen, BelgiumHQ recorded Sep 5, 202611-5013 contacts →

Exact match

“Wij bij Exergie, willen de wereld verduurzamen.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12Exact matchBrussels, BelgiumHQ recorded Sep 5, 20261-1010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13Exact matchWesterlo, BelgiumHQ recorded Sep 5, 20261-1010 contacts →

Exact match

“RSK Energy and Climate provides consultancy support, specifically tailored to each client's needs by using know-how in the fields of- Technical energy expertise: Energy audits…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14Exact matchYvoir, BelgiumHQ recorded Sep 5, 202611-5010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15Exact matchAntwerp, BelgiumHQ recorded Sep 5, 20261-109 contacts →

Exact match

“We are planning the path to climate neutrality.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16Exact matchLiège, BelgiumHQ recorded Sep 5, 20261-109 contacts →

Exact match

“Smart2Circle empowers companies and organizations to contribute to a carbon neutral world in 2050.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17Exact matchGhent, BelgiumHQ recorded Sep 5, 20261-108 contacts →

Exact match

“Bedrijven willen klaar zijn voor de toekomst.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18Exact matchLeuven, BelgiumHQ recorded Sep 5, 20261-108 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19Exact matchKruisem, BelgiumHQ recorded Sep 5, 202611-506 contacts →

Exact match

“We delen onze jarenlange ervaring en uitgebreide kennis.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20Exact matchAntwerp, BelgiumHQ recorded Sep 5, 20261-106 contacts →

Exact match

“Anticipating change is a key requirement for any industry; even more for a very complex one such as the logistics industry.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21Exact matchLeuven, BelgiumHQ recorded Sep 5, 202611-506 contacts →

Exact match

“There’s climate technology.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22Exact matchBrussels, BelgiumHQ recorded Sep 5, 20261-105 contacts →

Exact match

“At Klareco, we believe that energy is a valuable asset that must be preserved for tomorrow by using it efficiently today.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23Exact matchLeuze-en-hainaut, BelgiumHQ recorded Sep 5, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24Exact matchHarelbeke, BelgiumHQ recorded Sep 5, 20261-104 contacts →

Exact match

“E-Luse assists large (industrial) companies and SMEs in their mission to make their business more sustainable.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25Exact matchBrussels, BelgiumHQ recorded Sep 5, 20261-104 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase

Showing 25 of 70 net zero consulting firms based in Belgium

See the full list, filter by size, metro and specialty, and access 239 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Net zero consulting firms based in Belgium at a glance

As of Sep 5, 2026
37.8%Verified-email coverage
3.3%Mobile-number coverage
9.0Average contacts per company
1-10Median size (employees)
17.1%Largest-city concentration · Brussels
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
52
11-50
14
51-200
2
201-500
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 “net zero consulting firms” 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 239 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 September 5, 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.

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 “net zero consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many net zero consulting firms are there based in Belgium?

RevenueBase identified 70 company matches for net zero consulting firms associated with Belgium as of September 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?

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

Which city has the most net zero consulting firms?

Brussels leads with 12 company records, followed by Antwerp (7) and Liege (5).

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 239 professional contacts with verified work emails tracked across these 70 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 September 5, 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.