Koloniënstraat 11

1000 Brussel • 302 registered now · 60 earlier

exact location from the address register On OpenStreetMap

This address at a glance

Domiciliation address or business centre

302 companies are registered here now, in a building of about 29,600 m² of floor space: about 98 m² per company. Most are not tied to one another. Fewer than 0.1% of Belgian addresses have as many; with so little space per company and so few ties, that is what a letterbox address or business centre looks like.

More companies than at 99.9% of Belgian addresses (which have at most 35).
233 have their registered office here, 69 only an establishment or branch.
Most common main activity: Business and other management consultancy (70200), at 21 of the 225 current companies with a known activity (102 different). Then Computer consultancy and computer facilities management (62200): 15, Computer programming (62100): 10.
2 of the 293 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 5.5 years.
43 new registrations in the last twelve months (126 in three years).
33 companies went bankrupt, 24 of them while registered here.
1 company was granted a judicial reorganisation.
9 companies are dissolved or no longer in the register; 30 moved away and still exist.

What you can do with this

For one company at this address: open its dossier and check whether it has an establishment elsewhere. That is most likely where it actually operates.
Ask the company where it works and who receives its mail. A registered office in a business centre is allowed and is not a bad sign in itself.
Look at staff and fixed assets in its annual accounts: they show whether there is real activity behind it.
Filter the list below by outcome, or export all of it as CSV.

302 registered now

362 ever registered

34 bankrupt or reorganisation

9 dissolved or inactive

43 new in 12 months

The building

cadastre and 3D survey

Footprint: 3,354 m²; measured, the ground under the building
Floor area (estimate): ~29,600 m²; 9 storeys, estimated from the building volume

Per current company: ~98 m²
Height: 35.3 metres
Volume: 88,937 m³
Plot: 3,406 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

2012

2014

2016

2018

2020

2022

2024

2026

still here moved bankrupt reorganisation dissolved or inactive

Companies at this address

362 in total

Company	At this address	Outcome
4YOU INTERNATIONAL BE 0767.407.778	Establishment since 04-2021	Active here
A.J RENOVA BE 0786.292.490	Registered office since 05-2022	Active here
ABN AMRO Bank N.V. BE 0819.210.332	Establishment since 06-2019	Active here
ACUARELLA BE 0453.698.001	Registered office since 11-1994	Active here
Administratieve dienst met boekhoudkundige autonomie van het beheer van de identiteitskaarten en van het rijkregister BE 0362.475.538	Registered office since 01-2008	Active here
Adnan Sakli & 8217 BE 0742.951.605	Registered office since 11-2013	Active here
ADSUM BE 0878.960.352	Registered office since 01-2013	Active here
Aerneo BE 1008.982.023	Registered office since 04-2024	Active here
AGLT 2024 BE 1010.723.964	Registered office since 06-2024	Active here
AGRALIM BE 0810.774.894	Establishment since 03-2009	Active here
AJ Invest Holding BE 1037.068.471	Registered office since 04-2026	Active here
AJ Invest Immo BE 1037.276.329	Registered office since 04-2026	Active here
AJ SRL BE 0748.911.660	Registered office since 06-2020	Active here
Aktrion Automotive Services BE 1009.425.055	Registered office since 05-2024	Bankrupt judgment 18-11-2025, while registered here
Aktrion BeNeLux BE 0763.313.091	Registered office since 02-2021	Bankrupt judgment 18-11-2025, while registered here
Aktrion Logistics & Compound Services BE 1009.425.253	Registered office since 05-2024	Bankrupt judgment 18-11-2025, while registered here
Aktrion Production & Inspection Services BE 1009.428.223	Registered office since 05-2024	Bankrupt judgment 17-11-2025, while registered here
ALIMAX REAL ESTATE BE 0668.595.858	Registered office since 12-2016	Active here
ALOHA - LEARNING CENTER BE 0799.972.064	Registered office since 06-2026	Active here
ALVORIS TRADE BE 1029.875.427	Registered office since 10-2025	Active here
AMVS Global BE 1021.175.517	Registered office since 03-2025	Active here
ANDERSEN LEGAL ANS BE 0473.169.760	Branch since 10-2000	Active here
ANDREA GUATI ROJO CONSULTING BE 1033.875.785	Registered office since 02-2026	Active here
Antheia Belgium BE 1035.291.094	Registered office since 03-2026	Active here
Apex Industrial Services BE 1036.056.505	Registered office since 03-2026	Active here
Aphilion IM BE 0466.964.829	Registered office since 08-2000	Active here
Arkea BE 0812.062.026	Registered office since 06-2009	Active here
ARKRAY Europe BE 0770.451.303	Establishment since 07-2021	Active here
Arkéa ProCapital Services BE 0879.289.558	Establishment since 02-2006	Active here
Ascendis Pharma Belgium BE 1023.715.036	Registered office since 05-2025	Active here
ASSOCIATION OF ISSUING BODIES BE 0864.645.330	Registered office since 01-2023	Active here
ATELIER XV-SOCIETE D'ARCHITECTES BE 0809.591.395	Registered office since 02-2009	Active here
AUTONOMATE BE 0677.870.543	Registered office since 07-2017	Active here
Avio Expo BE 1013.335.244	Establishment since 09-2024	Active here
AVIRAMA Equestrian BE 1007.309.465	Registered office since 03-2024	Active here
Axis Experts BE 0828.966.156	Registered office since 09-2010	Active here
Babcock International Belgium BE 0790.978.580	Registered office since 09-2022	Active here
Baydu, Ahmet (sole trader) BE 1027.179.916	Establishment since 09-2025	Active here
BAYTNA, pour le soutien de la société civile BE 0682.919.590	Registered office since 03-2020	Bankrupt per the KBO register, while registered here
BBF production BE 0798.544.877	Registered office since 02-2023	Active here
BEASAP CONSULTING BE 0787.997.613	Establishment since 07-2022	Active here
BEAUSOV BE 0435.715.288	Registered office since 11-1988	Active here
BiZZdesign België BE 0829.269.925	Registered office since 09-2010	Active here
bk World Belgium BE 1028.395.879	Registered office since 09-2025	Active here
BLACKROCK GAMES BE 0765.305.650	Branch since 03-2021	Active here
BLAYZE BRANDING BE 0671.491.606	Registered office since 09-2021	Active here
Bloq.it Belgium BE 1027.981.353	Registered office since 10-2025	Active here
BLUE SOFT BELUX BE 0782.764.759	Registered office since 03-2022	Active here
Bluestar Europe Distribution bv BE 0502.972.912	Establishment since 04-2021	Active here
BRUXORANGERIE BE 0898.899.592	Registered office since 06-2008	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.

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: 15-10-2026.