Leopoldstraat 6

1000 Brussels • 10 registered nowBuilding with many business tenants

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exact location from the address register On OpenStreetMap

Activity behind the registrations

6 of the 9 active companies here show no staff, no fixed assets and no other address. The sole trader does not count.

2 with accounts for 2024 or later

2 with staff, 22 FTE together

2 with fixed assets

1 at another address too

0 with negative equity

0 with overdue accounts

Main activities

5 different activities across 6 of the 10 companies registered now.

Companies at this address

10 in total

Company	At this address	Outcome
Jeunes Amis de l'Opéra BE 0424.698.464 Founded in 1983	Registered office since 04-1983	Active here
Journalismfund Europe BE 0463.312.580 Founded in 1998 · 12 FTE (2025)	Registered office since 01-2007	Active here
La Mutualité centrale et commerciale BE 0411.833.888 Founded in 1877	Registered office since 06-1877	Active here
Misplon, Senne (sole trader) BE 0713.542.985 Founded in 2018	Establishment since 11-2018	Active here
NEDERLANDSE TAALUNIE BE 0851.245.274 Founded in 2002	Establishment since 01-2009	Active here
Rekto:verso BE 0862.153.915 Founded in 2003	Registered office since 12-2022	Active here
SciMingo BE 0875.624.839 Founded in 2005	Registered office since 01-2008	Active here
Union Nationale Mutualiste d'Ex-Sous Officiers, Caporaux et Soldats de l'Armée Belge BE 0411.725.606 Founded in 1913	Registered office since 10-1913	Active here
VERENIGING VAN VRIENDEN VAN HET KONINKLIJK CONCERTGEBOUWORKEST IN BELGIE BE 0832.212.290 Founded in 2010	Registered office since 09-2010	Active here
Vlaams -Nederlands huis deBuren BE 0866.011.149 Founded in 2004 · 9.9 FTE (2025)	Registered office since 03-2007	Active here

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The building

cadastre and 3D survey

Footprint: 287 m²; measured, the ground under the building
Floor area (estimate): ~2,000 m²; 8 storeys, estimated from the building volume

Per current company: ~201 m²
Height: 25.5 metres
Volume: 6,017 m³
Plot: 261 m²

The buildings come from the cadastre and the 3D survey (LiDAR), the box numbers from the BEST address register and the heritage from the regional registers. A registration says who is based here, not who owns it.

Insights on this address

Building with many business tenants

10 companies are registered here now. They are based in a building of about 2,000 m² of floor space. That is about 201 m² per company, room enough for an office each. Most are not tied to one another and rent independently in the same building.

This address has more companies than 95% of Belgian addresses, which have at most five.
8 have their registered office here, 2 only an establishment or branch.
None of the 9 companies here shares a current director with another.
Half of the current companies have been registered here for less than 19 years.

Recommendations

Open the dossier of the company you are interested in. The list shows whether it has its registered office here or only an establishment.

Method and limits of this check

A shared address is not suspicious in itself. Office buildings, accountants and business centres host many companies. The verdict is about the kind of address, not about any individual company.

The comparison rests on all 1,408,687 active Belgian addresses. Half of them have one company, 95% at most five, 99% at most ten and 99.9% at most 35.

The list of an address holds the companies in the KBO register and those that left it since April 2026. A company that stopped before then is not in it. So the bankruptcies at this address are shown as counts. The comparison with Belgium runs over the postcode, for the same founding years and after the same number of years. It comes from the survival tables, which start from the founding deeds in the Belgian Official Gazette and count the companies that stopped too.

A shared director holds 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. So 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: 13-11-2026.