Zuidstraat 111

1000 Brussel • 13 registered now

exact location from the address register On OpenStreetMap

This address at a glance

Building with many business tenants

13 companies are registered here now, more than at 99% of Belgian addresses, in a building of about 10,500 m² of floor space: about 807 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 Solidaris.

More companies than at 99% of Belgian addresses (which have at most ten).
11 have their registered office here, 2 only an establishment or branch.
Most common main activity: Public administration and defence; compulsory social security (84302), at 4 of the 8 current companies with a known activity (4 different). Then Public administration and defence; compulsory social security (84309): 2, Computer consultancy and computer facilities management (62200): 1.
None of the 13 companies here shares a current director with another.
Half of the current companies have been registered here for less than 15 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.

13 registered now

13 ever registered

0 bankrupt or reorganisation

0 dissolved or inactive

0 new in 12 months

The building

cadastre and 3D survey

Footprint: 1,433 m²; measured, the ground under the building
Floor area (estimate): ~10,500 m²; 8 storeys, estimated from the building volume

Per current company: ~807 m²
Height: 32.8 metres
Volume: 31,478 m³
Plot: 1,501 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.

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

13 in total

Company	At this address	Outcome
Assurance Mutuelle socialiste de l'Agglomération bruxelloise BE 0411.714.223	Registered office since 07-1910	Active here
Digimut BE 0690.565.764	Registered office since 09-2018	Active here
Fédération nationale pour la Promotion des Handicapés - Régionale du Brabant BE 0415.293.028	Registered office since 01-2008	Active here
Groep FMSB zorgkas Brabant BE 0674.529.981	Registered office since 01-2017	Active here
GROUPE FMSB SMAB BE 0673.715.280	Registered office since 01-2017	Active here
La Mutuelle Socialiste libre du Brabant BE 0411.731.346	Registered office since 12-1919	Active here
Regionale Maatschappij van Onderlinge Bijstand van de Socialistische Mutualiteiten voor het tweetalige gebied Brussel-Hoofdstad BE 0713.671.659	Registered office since 10-2023	Active here
SOCIAAL FONDS VOR ET FSMB PERSONEEL BE 0840.062.164	Registered office since 10-2011	Active here
SOCIETE MUTUALISTE D'ASSURANCE SOLIDARIS BRABANT BE 0838.221.243	Registered office since 10-2011	Active here
Solidaris - nationaal verbond van socialistische mutualiteiten BE 0411.724.220	Establishment since 07-1913	Active here
Solidaris Brabant BE 0411.714.124	Registered office since 07-1910	Active here
Solidaris Zorgkas, zorgkas van de socialistische mutualiteiten BE 0476.572.579	Establishment since 12-2022	Active here
SOLIDARITEITSKAS VAN HET FSMB-PERSONEEL BE 0840.156.194	Registered office since 10-2011	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.

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: 03-10-2026.