Company lists · Data refreshed September 2026
Top 25 Consultancy firms based in Brussels, Belgium
RevenueBase identified 230 consultancy firms headquartered in Brussels, Belgium as of September 2026 and tracks 4,485 professional contacts across them, including 1,635 with verified work emails. Brussels is the largest hub.
This list covers consultancy firms headquartered in Brussels, 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 24, 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 consultancy firms based in Brussels, Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,186 contacts → | ||||
Indirect evidence “As people, organizations and societies embrace change at pace, its leaders must anticipate, innovate and transform ever faster.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 2 | 274 contacts → | ||||
Indirect evidence “Most organizations are facing major transformation challenges due to market, technological, social or political factors.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 3 | 128 contacts → | ||||
Strong 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 Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 4 | 102 contacts → | ||||
Indirect evidence “We’re a team of solution finders, consensus builders, policy wonks, political navigators, debate shapers and policy movers.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 5 | 89 contacts → | ||||
Strong evidence “Sales Consult is specialised in sales results improvement by different services approaches - Sales Consultancy - Outsourcing - Try & Hire - Insourcing projects - Temporary sales &…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 6 | 86 contacts → | ||||
Strong 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 24, 2026Thanks. The Data Team will review it. | |||||
| 7 | 51 contacts → | ||||
Indirect evidence “AION Consulting is a dynamic, independent strategy advisory group, operating through offices in Brussels, Paris, Luxembourg, Lyon, and Nantes.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 8 | 47 contacts → | ||||
Indirect evidence “Stakeholder oriented, objective driven.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 9 | 45 contacts → | ||||
Strong evidence “Adiutum is a Belgian IT consultancy company founded in 2008.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 10 | 37 contacts → | ||||
Indirect evidence “PHCom stands for Performance and Harmony in Commercial Services.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Indirect evidence “We bring together human resources expertise with years of experience across diverse sectors, all driven by methods that foster talent and organizational growth.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 12 | 32 contacts → | ||||
Strong evidence “Schuman Associates is a leading Brussels-based consultancy with more than 35 years’ experience in European funding and public affairs.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 13 | 30 contacts → | ||||
Indirect evidence “Your - Partner!” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 14 | 29 contacts → | ||||
Strong evidence “Magellan Circle is a European Consultancy company that combines more than 20 years experience in the fields of Transport, Mobility, Logistics, Environment, Circular Economy and…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 15 | 28 contacts → | ||||
Indirect evidence “Enlighten Advisory is a boutique global advisory with a highly experienced, well-connected team working across multiple sectors and industries.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 16 | 26 contacts → | ||||
Indirect evidence “Our goal?” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 17 | 25 contacts → | ||||
Indirect evidence “Founded by Anne-Sophie & Sébastien in 2022, Community Consulting is a dynamic IT consulting company with a focus on transparency, quality and long term relationships.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 18 | 23 contacts → | ||||
Indirect evidence “We are your companion de route.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 19 | 18 contacts → | ||||
Strong evidence “KEA advises territories, organisations and people to unlock the potential of Culture and Creative Industries KEA is a Brussels-based strategic consultancy specialising in…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 20 | 17 contacts → | ||||
Strong evidence “Pideeco is a Brussels-based European consultancy firm specialized in financial regulatory compliance activities & operations.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 21 | 17 contacts → | ||||
Indirect evidence “Mavence is a global recruitment and organizational consulting firm specializing fully in Corporate Affairs functions.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 contacts → | ||||
Strong evidence “Sequoia Business Community is a consulting company consisting of the market’s leading architects and management consultants with a geographical footprint in Belgium, Luxembourg…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 23 | 14 contacts → | ||||
Strong evidence “TAS Europrojects is a small development consultancy located in the heart of Brussels.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Indirect evidence “Dups is a specialist in transaction advisory and fundraising for Belgian entrepreneurs who are raising capital, acquiring, or preparing to exit.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 25 | 11 contacts → | ||||
Indirect evidence “ISFIN is an ADVISORY FIRM focusing on the emerging markets.” Source: RevenueBase Database · checked Sep 24, 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: consultancy 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 consultancy firms.
- Partial evidence
- Its own public description names part of consultancy firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name consultancy 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 230 consultancy firms based in Brussels, Belgium
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Consultancy firms based in Brussels, Belgium at a glance
As of Sep 24, 2026Companies by employee count
Email recency for this list is measured across the whole Belgium list rather than for Brussels, so it is reported there. Company counts and contact totals on this page are exact for Brussels, over 230 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 consultancy 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 Brussels, Belgium whose own description of what they do matches “consultancy 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 consultancy 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 consultancy firms, and records with no verified work email. Companies headquartered outside Brussels 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, 1,635 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 24, 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.
Consultancy firms by metro in Belgium
- Consultancy firms in Brussels230
- Consultancy firms in Bruxelles117
- Consultancy firms in Antwerpen87
- Consultancy firms in Antwerp67
- Consultancy firms in Gent62
- Consultancy firms in Liege56
- Consultancy firms in Mechelen46
- Consultancy firms in Leuven40
- Consultancy firms in Ghent35
- Consultancy firms in Hasselt28
- Consultancy firms in Kontich26
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 consultancy 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 consultancy firms are there based in Brussels, Belgium?
RevenueBase identified 230 consultancy firms headquartered in Brussels, 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?
Arthur D. Little, headquartered in Brussels, tops this list with the largest team on record.
Which city has the most consultancy firms?
Brussels leads with 230 headquartered companies, followed by Bruxelles (117) and Antwerpen (87).
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 1,635 verified decision-maker contacts tracked across these 230 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 24, 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.