Company lists · Data refreshed September 2026

Top 25 Middle market management consulting firms based in Belgium

Name: Middle market management consulting firms based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 452 companies tracked

RevenueBase identified 452 middle market management consulting firms headquartered in Belgium as of September 2026 and tracks 3,920 professional contacts across them, including 402 with verified work emails. Brussels is the largest hub.

This list covers middle market management 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

452Companies

3,920Contacts tracked

402Verified emails

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The 25 largest middle market management consulting firms based in Belgium

Ranked by team size

Top 25 of 452 middle market management consulting firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to middle market management 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Avertim	Partial evidence	Brussels, BelgiumHQ checked Sep 28, 2026	201-500	274 contacts →
	Partial evidence “Most organizations are facing major transformation challenges due to market, technological, social or political factors.” Source: RevenueBase Database · checked Sep 28, 2026
2	Trilations	Indirect evidence	Kontich, BelgiumHQ checked Sep 28, 2026	51-200	75 contacts →
	Indirect evidence “Trilations provides business insights and works with you every day to define and implement winning strategies.” Source: RevenueBase Database · checked Sep 28, 2026
3	Nova Reperta	Indirect evidence	Brussels, BelgiumHQ checked Sep 28, 2026	11-50	68 contacts →
	Indirect evidence “Nova Reperta helps your company to set a clear course for success and cultivate the strategies, processes, tools and mindset you need.” Source: RevenueBase Database · checked Sep 28, 2026
4	Phinest	Strong evidence	Watermael-boitsfort, BelgiumHQ checked Sep 28, 2026	51-200	63 contacts →
	Strong evidence “Phinest is a Belgian Management Consulting firm providing tailor-made services to transform companies.” Source: RevenueBase Database · checked Sep 28, 2026
5	Aion Consulting	Partial evidence	Brussels, BelgiumHQ checked Sep 28, 2026	51-200	51 contacts →
	Partial 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 28, 2026
6	Business Markers	Partial evidence	Lokeren, BelgiumHQ checked Sep 28, 2026	11-50	33 contacts →
	Partial evidence “Business Markers is a unique consultancy agency, a cooperation of experienced business managers.” Source: RevenueBase Database · checked Sep 28, 2026
7	Stretch Innovation	Partial evidence	Antwerp, BelgiumHQ checked Sep 28, 2026	11-50	33 contacts →
	Partial evidence “We help your company break into new markets, outpace competitors, and build scalable Growth Engines that drive measurable success for years to come: Already 164 companies with…” Source: RevenueBase Database · checked Sep 28, 2026
8	ASV Consult	Indirect evidence	Mechelen, BelgiumHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “At ASV Consult, we believe that a tailored & client-focused approach is needed to effectively deliver value for our clients.” Source: RevenueBase Database · checked Sep 28, 2026
9	Ianusgroup	Indirect evidence	Brussels, BelgiumHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “With offices in Brussels and Madrid, ianusGroup for sustainable businesses offers tailor-made strategic solutions to private companies, trade associations, not-for profit…” Source: RevenueBase Database · checked Sep 28, 2026
10	Gallys	Indirect evidence	Louveigné, BelgiumHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “GALLYS a pour mission d'accompagner ses clients dans leur développement, de les aider à dynamiser la gestion de leur entreprise, de les conseiller dans l'organisation des…” Source: RevenueBase Database · checked Sep 28, 2026
11	Ekkofin	Indirect evidence	Mons, BelgiumHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Cabinet de conseil en stratégie spécialisé en cession et levée de fonds pour les PME.” Source: RevenueBase Database · checked Sep 28, 2026
12	Merluno	Indirect evidence	Berchem, BelgiumHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Welcome to the outside-in company.” Source: RevenueBase Database · checked Sep 28, 2026
13	ARS Energy	Strong evidence	Namur, BelgiumHQ checked Sep 28, 2026	11-50	10 contacts →
	Strong evidence “ARS ENERGY is a management consulting company based out of 11 Rue du Long-Sart(BN), Namur, Belgium.” Source: RevenueBase Database · checked Sep 28, 2026
14	Moniquet & Company	Partial evidence	Sint-lambrechts-herk, BelgiumHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “Customized strategy consulting focused on complex challenges in strategy, finance, M&A and change.” Source: RevenueBase Database · checked Sep 28, 2026
15	Yolo Consulting	Partial evidence	Beaufays, BelgiumHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “YOLO Consulting accompagne les dirigeants et propriétaires de PME dans les domaines suivants : Cession et acquisition d’entreprise - Cession : évaluation…” Source: RevenueBase Database · checked Sep 28, 2026
16	Brugmann Conseil	Indirect evidence	Brussels, BelgiumHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Basée à Bruxelles et à Paris, Brugmann Conseil s’est fixé comme objectif d’accompagner entrepreneurs, investisseurs et dirigeants dans toutes les étapes de leur activité.” Source: RevenueBase Database · checked Sep 28, 2026
17	Multiple Choice	Partial evidence	Ixelles, BelgiumHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Multiple Choice is a strategic consulting firm with a focus on SME's and transmission of companies, both from the buyers' as the sellers' perspectives.” Source: RevenueBase Database · checked Sep 28, 2026
18	Fluoline BV	Strong evidence	Hasselt, BelgiumHQ checked Sep 28, 2026	1-10	4 contacts →
	Strong evidence “Management consulting for technology companies.” Source: RevenueBase Database · checked Sep 28, 2026
19	Frahanblondé	Strong evidence	Diegem, BelgiumHQ checked Sep 28, 2026	1-10	4 contacts →
	Strong evidence “Management consultancy for the legal market and professional services industry.” Source: RevenueBase Database · checked Sep 28, 2026
20	Efeso Belgium	Partial evidence	Brussels, BelgiumHQ checked Sep 28, 2026	501-1,000	4 contacts →
	Partial evidence “EFESO Belgium is part of EFESO Management Consultants, the leading global pure player in operations strategy and performance improvement.” Source: RevenueBase Database · checked Sep 28, 2026
21	Paquay & Associates	Partial evidence	Opglabbeek, BelgiumHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Paquay & Associates is a strategy & value management consultancy firm.” Source: RevenueBase Database · checked Sep 28, 2026
22	HBG Consult	Indirect evidence	Watermael-Boitsfort Brussels, BelgiumHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “At HBG Consult, we specialize in helping private equity firms, portfolio companies, and corporates navigate complex challenges and unlock their full potential.” Source: RevenueBase Database · checked Sep 28, 2026
23	2aspire.be	Indirect evidence	Mechelen, BelgiumHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “To try very hard to reach something difficult, ambitious.” : dat is 2aspire.” Source: RevenueBase Database · checked Sep 28, 2026
24	Gapresolve	Strong evidence	Leuven, BelgiumHQ checked Sep 28, 2026	11-50	3 contacts →
	Strong evidence “GapResolve offers a wide range innovative management consulting services aimed at resolving strategic, operational, and interpersonal gaps practically and profitably.” Source: RevenueBase Database · checked Sep 28, 2026
25	Sadis & CO	Indirect evidence	B-1000 Brussels, BelgiumHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Sadis & Co helps companies managing critical phases of their life cycle, efficiently and responsibly.” Source: RevenueBase Database · checked Sep 28, 2026

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: middle market management 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 middle market management consulting firms.
Partial evidence: Its own public description names part of middle market management consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name middle market management 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 452 middle market management consulting firms based in Belgium

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Middle market management consulting firms based in Belgium at a glance

As of Sep 28, 2026

10.3%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

11.1%Largest-city concentration · Brussels

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

396

11-50

51-200

201-500

501-1,000

1,001-5,000

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 452 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 middle market management 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 “middle market management 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 middle market management 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 middle market management 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, 402 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.

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 middle market management 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 middle market management consulting firms are there based in Belgium?

RevenueBase identified 452 middle market management 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?

Avertim, headquartered in Brussels, tops this list with the largest team on record.

Which city has the most middle market management consulting firms?

Brussels leads with 50 headquartered companies, followed by Antwerp (24) and Mechelen (11).

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 402 verified decision-maker contacts tracked across these 452 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.