Company lists · Data refreshed September 2026

Top 12 Startup networking groups based in Belgium

RevenueBase identified 81 startup networking groups headquartered in Belgium as of September 2026 and tracks 426 professional contacts across them, including 60 with verified work emails. Hasselt is the largest hub.

This list covers startup networking groups 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 22, 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 22, 2026 86% judged on-target in blind review
81Companies
426Contacts tracked
60Verified emails
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The 12 largest startup networking groups based in Belgium

Ranked by team size
Top 12 of 81 startup networking groups based in Belgium, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to startup networking groups: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceBrussels, BelgiumHQ checked Sep 22, 2026n/a89 contacts →

Partial evidence

“EN Based in the heart of Brussels, European capital, StartLAB.BRUSSELS is the“go-to place” for young entrepreneurs.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceBrussels, BelgiumHQ checked Sep 22, 2026501-1,00040 contacts →

Indirect evidence

“Depuis sa création en 2013, le B19 s'est imposé comme un cercle d'affaires moderne, rassemblant plus de membres actifs et dynamiques.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceNamur, BelgiumHQ checked Sep 22, 20261-1021 contacts →

Indirect evidence

“80% des entrepreneurs wallons ont du mal à s’entourer.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceLouvain-la-neuve, BelgiumHQ checked Sep 22, 20261-1015 contacts →

Indirect evidence

“Aujourd’hui, le Cercle du lac compte plus de 600 membres et plus de 3.500 événements ont été organisés depuis sa création.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceAntwerp, BelgiumHQ checked Sep 22, 20261-1014 contacts →

Indirect evidence

“SuperNova 2026 March 23-29 | Antwerp Forget stiff business conferences.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceGent, BelgiumHQ checked Sep 22, 202611-5012 contacts →

Indirect evidence

“EROV inspireert ondernemers om het beste uit zichzelf en hun organisatie te halen.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceBrussels, BelgiumHQ checked Sep 22, 20261-109 contacts →

Indirect evidence

“We are building a nation of entrepreneurs who are willing to address the biggest challenges of the XXIst century and invent a brighter future for all.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceAntwerp, BelgiumHQ checked Sep 22, 202611-507 contacts →

Indirect evidence

“Join the 8th edition of Future Entrepreneurship.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceHasselt, BelgiumHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“Net’s Work werd opgericht door rasechte ondernemers uit uiteenlopende beroepsgroepen met netwerkervaring.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceRumst, BelgiumHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

“There’s a Japanese word for people who buy more books than they can actually read: Tsundoku ().”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceBrugge, BelgiumHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

“ENVISION: ontstaan uit een brandende passie voor sales, community en netwerken.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceMortsel, BelgiumHQ checked Sep 22, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026

Showing 12 of 81 startup networking groups based in Belgium

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Startup networking groups based in Belgium at a glance

As of Sep 22, 2026
14.1%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
4.9%Largest-city concentration · Hasselt
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
49
11-50
29
51-200
1
501-1,000
1
10001+
1

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 81 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 startup networking groups, 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 “startup networking groups”. 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 startup networking groups), 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 startup networking groups, 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, 60 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 22, 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 startup networking groups, 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 startup networking groups are there based in Belgium?

RevenueBase identified 81 startup networking groups 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?

startlab.brussels, headquartered in Bruxelles, tops this list with the largest team on record.

Which city has the most startup networking groups?

Hasselt leads with 4 headquartered companies, followed by Antwerpen (3) and Brussels (3).

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 60 verified decision-maker contacts tracked across these 81 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 22, 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.