Troonstraat 4
Building with many business tenants
10 companies are registered here now, more than at 99% of Belgian addresses, in a building of about 4,800 m² of floor space: about 482 m² per company, room enough for an office each. Most are not tied to one another: independent tenants of one building.
- More companies than at 99% of Belgian addresses (which have at most ten).
- 7 have their registered office here, 3 only an establishment or branch.
- Most common main activity: Market research and public opinion polling (73200), at 2 of the 10 current companies with a known activity (8 different). Then Activities of membership organisations (94920): 2, Other financial services (64999): 1.
- None of the 10 companies here shares a current director with another.
- Half of the current companies have been registered here for less than 17 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.
The building
cadastre and 3D survey- Footprint
- 896 m²
- measured, the ground under the building
- Floor area (estimate)
- ~4,800 m²
- 7 storeys, estimated from the building volume
- Per current company
- ~482 m²
- Height
- 27.6 metres
- Volume
- 14,455 m³
- Plot
- 670 m²
An association of co-owners (VME) is registered: the building is divided into apartments or units that each have an owner.
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
Companies at this address
10 in total| Company | At this address | Outcome |
|---|---|---|
| Association des copropriétaires de l'immeuble à Bruxelles , rue du Trone 4
BE 0550.522.114 |
Registered office · VME
since 01-2008 |
Active here |
| COMMUNAUTE EUROPEENE DES COOPERATIVES DE CONSOMMATEURS
BE 0889.195.436 |
Establishment
since 09-2006 |
Active here |
| Confédération des Associations nationales de Tanneurs et de Mégissiers de la Communauté européenne(Cotance
BE 0445.496.848 |
Establishment
since 01-2008 |
Active here |
| EDFI Management Company
BE 0652.957.874 |
Registered office
since 04-2016 |
Active here |
| European Conservatives and Reformists Party
BE 0820.208.739 |
Registered office
since 08-2010 |
Active here |
| EUROPEAN DEVELOPMENT FINANCE INSTITUTIONS
BE 0862.014.254 |
Registered office
since 12-2003 |
Active here |
| Exeltis Belgium
BE 0628.846.248 |
Registered office
since 04-2017 |
Active here |
| ISC intelligence in science
BE 0887.103.107 |
Establishment
since 01-2007 |
Active here |
| Joint Programming Initiative on Healthy and Productive Seas and Oceans
BE 0691.970.779 |
Registered office
since 05-2018 |
Active here |
| New Direction - the Foundation for European Conservatism
BE 0820.210.719 |
Registered office
since 01-2011 |
Active here |
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: 28-09-2026.