Company lists · Data refreshed September 2026

Top 25 Lead generation advertising agencies based in Belgium

RevenueBase identified 158 company matches for lead generation advertising agencies associated with Belgium as of September 2026 and tracks 593 professional contacts across them, including 165 with verified work emails. Brussels is the largest hub.

This list covers company matches for lead generation 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 September 28, 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 Sep 28, 2026 How this list was built
158Companies
593Contacts tracked
165Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest lead generation advertising agencies based in Belgium

Ranked by team size
Top 25 of 158 company matches for lead generation advertising agencies based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchLier, BelgiumHQ recorded Sep 28, 2026n/a32 contacts →

Exact match

“MCLS nv is your ideal partner for customer acquisition.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchGhent, BelgiumHQ recorded Sep 28, 202611-5025 contacts →

Exact match

“The whole idea of our business is to add value to yours.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchMechelen, BelgiumHQ recorded Sep 28, 202611-5025 contacts →

Exact match

“We put brands, companies and products on the (digital) rails for more leads, greater turnover and more business, by fusing creativity and performance.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchLa Hulpe, BelgiumHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“Digital creatives, data heroes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchGeel, BelgiumHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“Our communication strategists and advisors will create impactful actions for sales, internal, brand and public communication.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchAntwerp, BelgiumHQ recorded Sep 28, 202611-5017 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchAntwerp, BelgiumHQ recorded Sep 28, 202611-5015 contacts →

Exact match

“In veel bedrijven is marketing een bron van frustratie, omdat ze er niet in slagen aan te tonen hoeveel extra business ze genereren.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchAalst, BelgiumHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“Green Bananas zag het levenslicht in 2011.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchBrussels, BelgiumHQ recorded Sep 28, 20261-1014 contacts →

Exact match

“We are Adjust and we help brands grow by connecting them with customers… And we know how to make a difference.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchBrussels, BelgiumHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“PASSIONATE ABOUT YOU!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchRoeselare, BelgiumHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“Online marketing is niet meer weg te denken uit de huidige marketingmix van KMO's.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchAntwerp, BelgiumHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“We ignite your brand's potential with bold marketing that operates at the intersection of culture and creativity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchOosterzele, BelgiumHQ recorded Sep 28, 20261-109 contacts →

Exact match

“Goede marketing begint bij scherpte: wie wil je bereiken, welk probleem los je op en waar wil je naartoe?”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchKortrijk, BelgiumHQ recorded Sep 28, 20261-109 contacts →

Exact match

“Welk dilemma je ons ook voorlegt, aan welke campagne we ook mogen bouwen, voor welke marketingstrijd je ons ook uitdaagt, we zijn er klaar voor!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchAntwerp, BelgiumHQ recorded Sep 28, 20261-109 contacts →

Exact match

“What would your marketing budget look like if you knew every € invested would make you in return?”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchCharleroi, BelgiumHQ recorded Sep 28, 20261-108 contacts →

Exact match

“Clef2web sprl, créée en 2005, est une agence web spécialisée dans la génération de leads et le lead nurturing.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchHeverlee, BelgiumHQ recorded Sep 28, 202611-508 contacts →

Exact match

“A full service marketing agency that lands your message with the right audience.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchPaal - Beringen, BelgiumHQ recorded Sep 28, 20261-107 contacts →

Exact match

“0474 806 236 info@cbridge.be”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchBrussels, BelgiumHQ recorded Sep 28, 20261-107 contacts →

Exact match

“TIREZ PROFIT DE LA PUISSANCE DES RÉSEAUX SOCIAUX!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchRoeselare, BelgiumHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Met In The Lead helpen we vooral B2B-bedrijven in het genereren van kwalitatieve leads én zorgen we voor ondersteuning van de sales bij het verwerken ervan.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchLochristi, BelgiumHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Waarom Stairway geen standaard digitaal marketingbureau is Veel bureaus verkopen een methode.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchWatermael-boitsfort, BelgiumHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Agence de growth marketing spécialisée en outbound B2B.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchBrugge, BelgiumHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Welcome to GlowBright, where we inspire Brands to Glow Brighter.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchAartselaar, BelgiumHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Welkom bij Solid Medio, waar we jouw merk laten schitteren als nooit tevoren.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchGhent, BelgiumHQ recorded Sep 28, 20261-104 contacts →

Exact match

“Voicemails, uninformed answers, fake phone numbers, competing for the same leads as your competitors and increasing prices for the same results.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 158 lead generation advertising agencies based in Belgium

See the full list, filter by size, metro and specialty, and access 165 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Lead generation advertising agencies based in Belgium at a glance

As of Sep 28, 2026
27.8%Verified-email coverage
3.8Average contacts per company
1-10Median size (employees)
10.8%Largest-city concentration · Brussels
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
134
11-50
21
51-200
3

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 158 companies.

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 “lead generation 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 165 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 September 28, 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 “lead generation advertising agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many lead generation advertising agencies are there based in Belgium?

RevenueBase identified 158 company matches for lead generation advertising agencies associated with Belgium as of September 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?

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

Which city has the most lead generation advertising agencies?

Brussels leads with 17 company records, followed by Antwerp (11) and Ghent (9).

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 165 professional contacts with verified work emails tracked across these 158 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 September 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 158 lead generation advertising agencies based in Belgium. Start with a free account, no credit card.

Download this list →

Related lists

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.