Wetenschapsstraat 23

1040 Brussel • 20 registered now · 1 earlier

exact location from the address register On OpenStreetMap

This address at a glance

Building with many business tenants

20 companies are registered here now, more than at 99% of Belgian addresses, in a building of about 14,700 m² of floor space: about 736 m² per company, room enough for an office each. Most are not tied to one another: independent tenants of one building. Tied by: 3 named Fédération, 2 with a shared director.

More companies than at 99% of Belgian addresses (which have at most ten).
14 have their registered office here, 6 only an establishment or branch.
Most common main activity: Activities of membership organisations (94994), at 3 of the 14 current companies with a known activity (8 different). Then Other membership organisations (94999): 3, Activities of business and employers' organisations (94110): 2.
2 of the 18 companies share a current director with another company here; the largest group has 2.
Half of the current companies have been registered here for less than 19 years.
3 companies are dissolved or no longer in the register.

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.

20 registered now

21 ever registered

0 bankrupt or reorganisation

3 dissolved or inactive

0 new in 12 months

The building

cadastre and 3D survey

Footprint: 2,391 m²; measured, the ground under the building
Floor area (estimate): ~14,700 m²; 7 storeys, estimated from the building volume

Per current company: ~736 m²
Height: 28.5 metres
Volume: 44,167 m³
Plot: 3,155 m²

Protected heritage

ProtectedArchitectural ensembleGeheel van vijf classicistische herenhuizenSource ↗

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.

Registrations per year, and what became of them

2018

2020

2022

2024

2026

still here moved bankrupt reorganisation dissolved or inactive

Companies at this address

21 in total

Company	At this address	Outcome
Association européenne du Commerce en gros des Viandes BE 0450.848.872	Registered office since 09-1993	Active here
ASSOCIATION FRANCAISE DES ENTREPRISES PRIVEES BE 0471.322.703	Branch since 01-2000	Active here
Belgian Biomass Association BE 0456.220.001	Registered office since 10-1995	Dissolved or in liquidation
BUILDINGS PERFORMANCE INSTITUTE EUROPE BE 0823.225.340	Registered office since 05-2010	Active here
BUREAU DU SECRETAIRE GENERAL DU CONSEIL SUPERIEUR DES ECOLES EUROPEENNES BE 0850.690.394	Registered office since 09-2011	Active here
Comité Européen de Normalisation - European Comittee for Standardization - Europäisches Komitee für Normung BE 0415.455.651	Registered office since 06-1975 shares director	Active here
Comité Européen de Normalisation Electrotechnique BE 0412.958.890	Registered office since 12-1972 shares director	Active here
CONSEIL EUROPEEN DES JEUNES AGRICULTEURS CEJA BE 0858.361.611	Registered office since 04-1996	Active here
ENERGY EFFICIENCY FOR EUROPE BE 0878.508.709	Registered office since 09-2005	Active here
EUROPEAN COOPERATIVES FOR AGRICULTURAL AND RURAL DEVELOPMENT BE 0442.585.660	Registered office since 11-1990	Dissolved or in liquidation
FEDERATION EUROPEENNE DES ASSOCIATIONS DE PRODUCTEURS DE LIEGE BE 0444.205.758	Registered office since 06-1991	Active here
Fédération européenne des Activités de la Dépollution et de l'Environnement BE 0439.748.609	Registered office since 12-1989	Active here
Fédération européenne des Recycleurs de Verre BE 0874.268.522	Registered office since 07-2011	Active here
Fédération Nationale des Activités de la Dépollution et de l’Environnement BE 0881.952.506	Establishment since 02-2019	Active here
Hörnig, Julia (sole trader) BE 0792.574.825	Establishment since 10-2022	Active here
KBC Global Services BE 0772.332.707	Establishment since 03-2022	Active here
Mendes Pinto, Cláudia (sole trader) BE 0770.488.321	Establishment since 07-2021	Active here
REGULATORY ASSISTANCE PROJECT BE 0550.413.236	Registered office since 09-2017	Active here
Stichting European Climate Foundation BE 0809.669.193	Establishment since 09-2009	Active here
UNITE TVA CEN-CENELEC MANAGEMENT CENTRE (CCMC) BE 0832.778.850	Registered office since 01-2011	Active here
Vlontzou, Vasiliki (sole trader) BE 0747.581.077	Establishment since 02-2020, left	Inactive out of the register since 23-07-2026

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.

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 Official Gazette (judgments), BOSA BEST (addresses and box numbers), cadastre and 3D survey (parcels and buildings).

Source: KBO (Kruispuntbank van Ondernemingen) · Belgian Official Gazette · BOSA BEST · Cadastre/LiDAR. Last updated: 12-10-2026.