Company lists · Data refreshed September 2026
Top 25 Environmental policy consulting firms based in Belgium
RevenueBase identified 212 environmental policy consulting firms headquartered in Belgium as of September 2026 and tracks 1,867 professional contacts across them, including 930 with verified work emails. Brussels is the largest hub.
This list covers environmental policy 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 September 28, 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 policy consulting firms based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 104 contacts → | ||||
Indirect evidence “Encon supports businesses as an independent agency with creative and innovative solutions in their transition to become more sustainable.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 101 contacts → | ||||
Partial evidence “Trevi Environmental Solutions is a Belgian environmental technology company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 86 contacts → | ||||
Partial evidence “RSK Benelux bvba is an evolving and innovative environmental consultancy with 8 offices in Belgium.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 86 contacts → | ||||
Indirect evidence “EPPA is a specialist management consultancy established in 1987 that assists clients in managing alignment between business, European Union institutions and governments, taking…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 82 contacts → | ||||
Partial evidence “Sertius and its multidisciplinary team offer their services in the fields of environment and security- Legal advices and administrative support: Practical advices regarding…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 80 contacts → | ||||
Partial evidence “We shape a vital living environment.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 75 contacts → | ||||
Partial evidence “We are a dynamic and multi-disciplinary consultancy based in Brussels, specialising in providing high quality legal and policy services for our primarily public sector clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 64 contacts → | ||||
Indirect 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 Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 45 contacts → | ||||
Indirect evidence “CLERENS is a leading public affairs and communications consultancy based in Brussels.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 36 contacts → | ||||
Indirect evidence “Bij ons draait alles om jou als ondernemer.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Indirect evidence “Grâce à nos consultants et à notre large réseau de spécialistes, nous avons développé une expertise de pointe dans une large gamme de services incluant des conseils en stratégie…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 34 contacts → | ||||
Indirect evidence “Consultes is een allround partner voor bedrijven op vlak van milieu, preventie, energie en duurzaamheid.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 31 contacts → | ||||
Indirect evidence “Bureau d'études en environnement dans les secteurs de l'eau, du sol et de l'énergie.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 31 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 31 contacts → | ||||
Indirect evidence “Wiels is een adviesbureau met meer dan 30 jaar ervaring.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 28 contacts → | ||||
Indirect evidence “LDR is het grootste advocatenkantoor van Vlaanderen dat actief is op het gebied van milieurecht.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 28 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 contacts → | ||||
Indirect evidence “Waarom kiezen voor de ORA Group?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 24 contacts → | ||||
Partial evidence “Sustenuto is a strategic consulting firm that helps organisations make a difference in society by integrating sustainability at the core of their business.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 contacts → | ||||
Indirect evidence “Research & Solutions BVBA, kortweg RESOL, is een professioneel en onafhankelijk adviesbureau inzake Veiligheid, Milieu, Energie en Kwaliteit.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 20 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 Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 20 contacts → | ||||
Partial evidence “SustainablePublicAffairs delivers policy-driven growth for sustainable business cases.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence “ADS Insight is a leading public affairs and public relations consultancy headquartered in Belgium, with offices in Germany and Sweden.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 contacts → | ||||
Strong evidence “Since the successful merge of OLFASCAN and ECOSCAN, MILVUS consulting has grown into a multidisciplinary firm offering independent, science-driven environmental advice.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 16 contacts → | ||||
Indirect evidence “GAME CHANGER Regulatory compliance is our point of departure.” Source: RevenueBase Database · checked Sep 28, 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 policy consulting firms. 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 policy consulting firms.
- Partial evidence
- Its own public description names part of environmental policy consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name environmental policy consulting firms. 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 212 environmental policy consulting firms based in Belgium
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Environmental policy consulting firms based in Belgium at a glance
As of Sep 28, 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 212 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 policy 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 “environmental policy 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 environmental policy 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 environmental policy 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, 930 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 28, 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 policy consulting firms by metro
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 policy 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 environmental policy consulting firms are there based in Belgium?
RevenueBase identified 212 environmental policy consulting firms 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?
ENCON, headquartered in Bilzen, tops this list with the largest team on record.
Which city has the most environmental policy consulting firms?
Brussels leads with 29 headquartered companies, followed by Bruxelles (10) and Liege (9).
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 930 verified decision-maker contacts tracked across these 212 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 28, 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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