Company lists · Data verified August 2026

Top 22 B2B lead generation agencies based in Belgium

There are 65 B2B lead generation agencies headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 261 professional contacts across them, including 51 with verified work emails and 13 with mobile numbers. Ghent is the largest hub.

This list covers B2B lead generation agencies 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.

65Companies
261Contacts tracked
51Verified emails
13Mobile numbers
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The 22 largest B2B lead generation agencies based in Belgium

Ranked by team size
Top 22 of 65 B2B lead generation agencies based in Belgium, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1AgidriveLouvain-La-Neuve11-50404
2RED Peppern/a11-50175
3LeaddriverAntwerp1-1091
4Clef2webCharleroi1-1085
5Sellentn/a1-1082
6Yello TelemarketingKortrijk1-1074
7In The LeadRoksem1-1055
8LeadixWatermael-Boitsfort Brussels1-1054
9CrumbsGhent1-1051
10YounykEnghien1-1043
11DE Commerce BVn/a1-1043
12Immowi InternationalGhent1-1043
13Customer ImpactAntwerpen1-1032
14Toolbox AgencyOostkamp11-5031
15SjusteRoeselare1-1031
16ExplordBruxelles1-1021
17GOP BrandingSint-Niklaas1-1011
18SOLIDBrussels1-1011
19Lead AgencyOttignies Lln1-1011
20VSV Advertisingn/a1-1011
21Fast Forward AgencyAntwerp1-1011
22OpptyleadWavre1-1011

Showing 22 of 65 B2B lead generation agencies based in Belgium

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B2B lead generation agencies based in Belgium at a glance

As of Aug 28, 2026
1-10Median size (employees)
GhentLargest hub · 5 HQs
13Contacts with mobile numbers
1Emails re-verified in last 30 days

Companies by employee count

1-10
55
11-50
9
51-200
1

B2B lead generation agencies by metro

MetroCompanies
B2B lead generation agencies in Ghent5
B2B lead generation agencies in Bruxelles5
B2B lead generation agencies in Antwerp4
B2B lead generation agencies in Brussels4
B2B lead generation agencies in Antwerpen2
B2B lead generation agencies in Schilde1
B2B lead generation agencies in Charleroi1

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 “B2B lead generation agencies”, 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; 1 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 B2B lead generation agencies are there based in Belgium?

There are 65 B2B lead generation agencies headquartered in Belgium as of August 2026 (RevenueBase).

What is the largest company on this list?

Agidrive, headquartered in Louvain-La-Neuve, tops this list with the largest team on record.

Which city has the most B2B lead generation agencies?

Ghent leads with 5 headquartered companies, followed by Bruxelles (5) and Antwerp (4).

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 51 verified decision-maker contacts tracked across these 65 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.