Company lists · Data refreshed October 2026

Top 25 Integrated advertising agencies based in Belgium

RevenueBase identified 502 company matches for integrated advertising agencies associated with Belgium as of October 2026 and tracks 8,734 professional contacts across them, including 2,496 with verified work emails and 312 with mobile numbers. Brussels is the largest hub.

This list covers company matches for integrated advertising agencies 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 October 1, 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 Oct 1, 2026 How this list was built
502Companies
8,734Contacts tracked
2,496Verified emails
312Mobile numbers
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The 25 largest integrated advertising agencies based in Belgium

Ranked by team size
Top 25 of 502 company matches for integrated advertising agencies based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 matchHerentals, BelgiumHQ recorded Oct 1, 20261,001-5,0003,670 contacts →

Exact match

“iO is an AI-native partner in marketing and technology, with experts across 12 campuses in Belgium, the Netherlands, Sweden, Denmark and Bulgaria.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchBrussels, BelgiumHQ recorded Oct 1, 202651-200284 contacts →

Exact match

“Space is the biggest local Media Agency in Belgium, combining a strong client portfolio and close relationships with 2 of the most powerful media agency networks.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchHeverlee, BelgiumHQ recorded Oct 1, 2026n/a273 contacts →

Exact match

“we are there now.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchZaventem, BelgiumHQ recorded Oct 1, 202651-200251 contacts →

Exact match

“BBDO is committed to effective creativity.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchMechelen, BelgiumHQ recorded Oct 1, 2026201-500242 contacts →

Exact match

“Springbok is a digital & creative agency for positive growth, operating from 5 offices in Belgium and the Netherlands.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchSint-stevens-woluwe, BelgiumHQ recorded Oct 1, 202651-200200 contacts →

Exact match

“With VAR in your campaign, you gain more attention, more brand, more mission.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchSchelle, BelgiumHQ recorded Oct 1, 202651-200199 contacts →

Exact match

“We are the digital extension to your sales, marketing and communications department.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchZaventem, BelgiumHQ recorded Oct 1, 202651-200165 contacts →

Exact match

“Not just about ads.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchBrussels, BelgiumHQ recorded Oct 1, 202651-20075 contacts →

Exact match

“At Rossel Advertising, proximity is at the heart of everything Today, proximity is a core value for many companies.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchHasselt, BelgiumHQ recorded Oct 1, 202611-5059 contacts →

Exact match

“We’re Pubmarket, a strategic marketing & communication agency based in Hasselt and Amsterdam.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchWierde, BelgiumHQ recorded Oct 1, 202611-5053 contacts →

Exact match

“Expansion est une agence intégrée de marketing et communication.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchSaint-josse-ten-noode, BelgiumHQ recorded Oct 1, 202611-5053 contacts →

Exact match

“We are EssenceMediacom.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchDiegem, BelgiumHQ recorded Oct 1, 202651-20052 contacts →

Exact match

“Crafting tomorrow’s phygital retail experiences today.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchRoeselare, BelgiumHQ recorded Oct 1, 202611-5050 contacts →

Exact match

“Hannibal, not just another full service agency.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchBrussels, BelgiumHQ recorded Oct 1, 202651-20048 contacts →

Exact match

“Havas aims to be the world’s best company at creating meaningful connections between people and brands using creativity, media and innovation.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchBruges, BelgiumHQ recorded Oct 1, 202651-20047 contacts →

Exact match

“As a leading full-service communication agency with offices in Antwerp, Bruges and Brussels, we have been surprising clients with vivid cross-media and cross-border campaigns for…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchFroyennes, BelgiumHQ recorded Oct 1, 202651-20047 contacts →

Exact match

“Create, structure and broadcast smart and flexibles contents 3 strategists : Positioning, repositioning, launch, creation, brand awareness, targeting … we conceptualise your…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchLeuven, BelgiumHQ recorded Oct 1, 202651-20045 contacts →

Exact match

“We are Boondoggle.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchAntwerp, BelgiumHQ recorded Oct 1, 202611-5044 contacts →

Exact match

“DIDIOM is hét expertisecentrum voor digitale marketing bij u op kantoor.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchBarchon, BelgiumHQ recorded Oct 1, 202611-5044 contacts →

Exact match

“Cible est une tribu polyvalente et engagée composée de 24 experts créatifs en communication répartis en 5 pôles complémentaires : • STRATEGY : Notre méthodologie spécifique permet…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchSchaerbeek, BelgiumHQ recorded Oct 1, 202611-5041 contacts →

Exact match

“Since 2004, mortierbrigade has been one of the most successful – and modest – creative agencies in Belgian history.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchOudergem, BelgiumHQ recorded Oct 1, 202611-5039 contacts →

Exact match

“Active since 2007, Universem is more than just a digital marketing agency.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchLoppem, BelgiumHQ recorded Oct 1, 202611-5037 contacts →

Exact match

“Als marketingbureau graven we met ons team van experten, we noemen ze kernkrakers, tot in de kern van bedrijven.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchHoeilaart, BelgiumHQ recorded Oct 1, 202611-5036 contacts →

Exact match

“Company profile : Universal Communication is a full-service advertising agency specialised in job market and institutional communication.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchLeuven, BelgiumHQ recorded Oct 1, 202611-5034 contacts →

Exact match

“AdSomeNoise is building the agency of the future.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 502 integrated advertising agencies based in Belgium

See the full list, filter by size, metro and specialty, and access 2,496 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Integrated advertising agencies based in Belgium at a glance

As of Oct 1, 2026
28.6%Verified-email coverage
3.6%Mobile-number coverage
17.4Average contacts per company
1-10Median size (employees)
9.6%Largest-city concentration · Brussels
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
343
11-50
110
51-200
31
201-500
9
1,001-5,000
4
10001+
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 33.0d

Company record updated

Median 96.0d

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 “integrated advertising agencies” 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 2,496 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 October 1, 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 “integrated advertising agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many integrated advertising agencies are there based in Belgium?

RevenueBase identified 502 company matches for integrated advertising agencies associated with Belgium as of October 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?

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

Which city has the most integrated advertising agencies?

Brussels leads with 48 company records, followed by Antwerp (31) and Ghent (23).

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 2,496 professional contacts with verified work emails tracked across these 502 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 October 1, 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.