Company lists · Data verified August 2026

Top 25 Advertising law firms based in Belgium

Name: Advertising law firms based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 97 companies tracked

There are 97 advertising law firms headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 1,026 professional contacts across them, including 584 with verified work emails and 31 with mobile numbers. Brussels is the largest hub.

This list covers advertising law firms headquartered in Belgium, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

97Companies

1,026Contacts tracked

584Verified emails

31Mobile numbers

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The 25 largest advertising law firms based in Belgium

Ranked by team size

Top 25 of 97 advertising law firms based in Belgium, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Wiggin	Brussels	51-200	239	186
2	Arnold & Siedsma	Antwerp	51-200	135	91
3	Contrast	Zaventem	11-50	47	32
4	ARTES	n/a	11-50	39	4
5	Actalys, Notaires Associées	Bruxelles	11-50	37	5
6	Henry ET Mersch, Cabinet D'avocats	Liege	11-50	22	11
7	LMBD	Brussel Bosvoorde	11-50	21	11
8	FAROS	Machelen	11-50	19	15
9	Fencer	n/a	11-50	17	11
10	Praxislaw	Brussels	11-50	17	9
11	Corbus Advocaten	Antwerpen	11-50	15	10
12	B.V. Mertens-Law	Wijnegem	11-50	14	10
13	Cintioli & Associati	n/a	11-50	14	8
14	DSD Advocaten	Kortrijk	11-50	11	8
15	Adastone	Watermael-Boitsfort	11-50	11	8
16	Advasadvocaten	Vilvoorde	11-50	11	7
17	Athos LAW	Brussels	1-10	10	6
18	Bourtembourg & CO	Bruxelles	1-10	10	4
19	Vanhoucke LAW	n/a	11-50	9	8
20	NUANS	Destelbergen	11-50	9	6
21	pitch.law	Antwerpen	1-10	9	6
22	acontrario.law	Gent	1-10	8	7
23	KEY Legal Avocats - Advocaten	Watermael-Boitsfort Brussels	11-50	8	2
24	advocaten-leuven.be	Brussel	11-50	7	4
25	Wauters & Partners Advocaten	Roeselare	11-50	7	3

Showing 25 of 97 advertising law firms based in Belgium

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Advertising law firms based in Belgium at a glance

As of Aug 28, 2026

1-10Median size (employees)

BrusselsLargest hub · 8 HQs

31Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Advertising law firms by metro

Metro	Companies
Advertising law firms in Brussels	8
Advertising law firms in Antwerpen	6
Advertising law firms in Brugge	5
Advertising law firms in Gent	4
Advertising law firms in Ixelles	3
Advertising law firms in Namur	3
Advertising law firms in Hasselt	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “advertising law firms”, with match quality audited by blind human judging, and headquartered in Belgium.
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: Contact records re-verify on a rolling cadence; 5 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many advertising law firms are there based in Belgium?

There are 97 advertising law firms headquartered in Belgium as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most advertising law firms?

Brussels leads with 8 headquartered companies, followed by Antwerpen (6) and Brugge (5).

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 584 verified decision-maker contacts tracked across these 97 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.