Kortenberglaan 4

1040 Brussel • 6 actively registered

exact location from the address register On OpenStreetMap

This address at a glance

Shared address

6 companies are registered here now, more than at 95% of Belgian addresses. The building has about 8,500 m² of floor space, about 1,416 m² per company.

3 have their registered office here, 3 only an establishment or branch.
Most common main activity: Activities of extraterritorial organisations and bodies (99000), at 3 of the 5 current companies with a known activity (3 different). Then Activities of business and employers' organisations (94110): 1, Activities of membership organisations (94200): 1.
None of the 6 companies here shares a current director with another.
Half of the current companies have been registered here for less than 49 years.

What you can do with this

Open the dossier of the company you are interested in: the list shows whether it has its registered office here or only an establishment.
Look at how the former companies ended: that says something about the address, nothing about any individual company.
Filter the list below by outcome, or export all of it as CSV.

6 registered now

6 ever registered

0 bankrupt or reorganisation

0 dissolved or inactive

0 new in 12 months

The building

cadastre and 3D survey

Footprint: 1,220 m²; measured, the ground under the building
Floor area (estimate): ~8,500 m²; 9 storeys, estimated from the building volume

Per current company: ~1,416 m²
Height: 31.2 metres
Volume: 25,480 m³
Plot: 1,623 m²

Buildings from the cadastre and the 3D survey (LiDAR), box numbers from the BEST address register, heritage from the regional registers. Who is registered here, not who owns it.

Companies at this address

6 in total

Company	At this address	Outcome
Ambassade van de Republiek Oostenrijk BE 0850.539.451	Registered office since 04-1972	Active here
Ambassade van het Koninkrijk der Nederlanden BE 0850.333.078	Establishment since 01-1948	Active here
KAMMER FUR ARBEITER UND ANGESTELLTE FUR WIEN BE 0850.888.354	Establishment since 01-2008	Active here
Permanente Vertegenwoordiging van de Republiek Oostenrijk bij de EU BE 0850.121.262	Registered office since 07-1970	Active here
Permanente Vertegenwoordiging van het Koninkrijk der Nederlanden bij de EU BE 0850.348.520	Registered office since 02-1984	Active here
WKO REPRES PERM DE L AUTRUI BE 0850.713.358	Establishment since 01-2008	Active here

Export as CSV Network from this address

What this check does and does not say

A shared address is not suspicious in itself: office buildings, accountants and business centres host many companies. The verdict says what kind of address this is, nothing about any individual company.

The comparison rests on all 1,408,687 active Belgian addresses: half have one company, 95% at most five, 99% at most ten, 99.9% at most 35. There is no national reference for bankruptcies and arrivals; they are shown here as counts.

A shared director is a current board mandate at two companies at this address; statutory auditors and liquidators do not count. A sole trader is listed here without a name.

Floor area and storeys are not measured anywhere: the building shows them as estimates, next to the measured footprint. No register of building use (office, housing) is available.

Sources: KBO (companies, addresses, activities and legal situation), Belgian State Gazette (judgments), BOSA BEST (addresses and box numbers), cadastre and 3D survey (parcels and buildings).

Source: KBO (Kruispuntbank van Ondernemingen) · Belgian State Gazette · BOSA BEST · Cadastre/LiDAR. Last updated: 29-09-2026.