Karel Martelstraat 8

1000 Brussel • 67 registered now · 4 earlierDomiciliation address or business centre

Follow this address

exact location from the address register On OpenStreetMap

67 registered now

71 ever registered

1 bankrupt or reorganisation

1 dissolved or inactive

6 new in 12 months

Companies at this address

71 in total

Company	At this address	Outcome
architects zj+ BE 1035.392.054	Registered office since 03-2026	Active here
AS PEB BE 0831.800.734	Registered office since 12-2010	Active here
AZ PUBLICITE BE 0545.756.246	Registered office since 02-2014	Active here
BCA Language Services BE 0742.739.688	Registered office since 02-2020	Active here
BEMA DESIGN BE 1004.738.668	Registered office since 01-2024	Active here
Boostern Belgium BE 0780.392.417	Registered office since 01-2022	Active here
Bricksteel Enterprises Infotech Private BE 1021.995.166	Registered office since 04-2025	Active here
Bruxelles Champêtre BE 0692.518.236	Registered office since 03-2018	Active here
Colleaux, Nathalie (sole trader) BE 0558.826.797	Establishment since 01-2019	Active here
Corelo BE 1044.570.036	Registered office since 10-2026	Active here
DATAGINEERS BE 0765.793.917	Registered office since 04-2021	Active here
Declercq, Charlotte (sole trader) BE 0701.762.336	Establishment since 10-2018	Active here
DelnaTech Solutions BE 0782.801.381	Registered office since 03-2022	Active here
Dusesoi, Matthias (sole trader) BE 0568.794.340	Establishment since 01-2015	Active here
Dyntra BE 0735.635.132	Registered office since 10-2019	Active here
FirstMovers BE 1022.450.571	Registered office since 04-2025	Active here
FLEX HOME BE 0807.287.646	Registered office since 01-2009	Active here
Forum de Redevabilité Humanitaire BE 1024.822.717	Registered office since 06-2025	Active here
GDG INSPIRE BE 0792.526.226	Registered office since 10-2022	Active here
HARDY.DIGITAL BE 0695.438.035	Registered office since 04-2018	Active here
INSTITUTE FOR STATE EFFECTIVENESS BE 1009.829.584	Establishment since 06-2024	Active here
KAZURI CONSULTING BE 1006.487.539	Registered office since 02-2024	Active here
KELTYS BE 1013.435.808	Registered office since 09-2024	Active here
LE CAILLOU BLEU BE 0463.386.321	Registered office since 05-1998	Active here
Leadership Engagement Advocacy BE 1023.874.986	Registered office since 06-2025	Active here
Lehmann, Gregori (sole trader) BE 1014.657.909	Establishment since 10-2024	Active here
LEXACCOUNT BE 0896.435.495	Registered office since 03-2008	Active here
LOUVENTIS BE 1044.104.238	Registered office since 10-2026	Active here
Mars Consulting BE 0762.667.745	Registered office since 04-2021	Active here
Martins Batista, Sérgio (sole trader) BE 1002.026.133	Establishment since 01-2024	Active here
MAYA INTERNATIONAL BE 1028.805.952	Registered office since 10-2025	Active here
MINDTEKS BE 0734.821.520	Registered office since 10-2019	Active here
MIT ADVANCED SOLUTIONS BE 0738.988.164	Registered office since 12-2019	Active here
NET ZERO STRATEGIES BE 1009.836.217	Registered office since 05-2024	Active here
ONCE IN BRUSSELS BE 0439.656.260	Registered office since 12-1989	Active here
OptioTech BE 1022.614.877	Registered office since 04-2025	Active here
People Focus BE 1018.477.432	Registered office since 01-2025	Active here
Peter Lang Editions Scientifiques Internationales - P.I.E. BE 0465.667.405	Registered office since 04-1999	Active here
PORCINI BE 1001.448.883	Registered office since 10-2023	Active here
PROSONIX BE 0822.954.136	Establishment since 02-2010	Active here
Qadri, Muhammad (sole trader) BE 1000.601.520	Establishment since 10-2023	Active here
RealAmor BE 1015.481.815	Registered office since 10-2024	Active here
RECLAIM BE 0732.994.059	Establishment since 02-2020	Active here
RegioDev BE 1021.452.065	Registered office since 03-2025	Active here
RosTech BE 0799.965.532	Registered office since 04-2023	Active here
Schwartz & Lumbrozo BE 0763.686.641	Registered office since 02-2021	Active here
Starry Impact Studio BE 1007.476.741	Registered office since 04-2024	Active here
STECKELMACHER-PLISNIER LOCOMOTION BE 1024.627.430	Registered office since 06-2025	Active here
SURISEC BE 0765.343.262	Registered office since 03-2021	Active here
Syndicate One BE 0779.736.280	Registered office since 01-2022	Active here

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The building

cadastre and 3D survey

Footprint: 78 m²; measured, the ground under the building
Floor area (estimate): ~400 m²; 6 storeys, estimated from the building volume

Per current company: ~6 m²
Height: 19.6 metres
Volume: 1,194 m³
Plot: 78 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.

Registrations and outcomes per year

2012

2014

2016

2018

2020

2022

2024

2026

still here moved bankrupt reorganisation dissolved or inactive

Insights on this address

Domiciliation address or business centre

67 companies are registered here now, in a building of about 400 m² of floor space. That is about 6 m² per company, too little for an office each. Most are not tied to one another. That fits a letterbox address or business centre.

This address has more companies than 99.9% of Belgian addresses, which have at most 35.
54 have their registered office here, 13 only an establishment or branch.
The most common main activity is Business and other management consultancy (70200), at 9 of the 57 current companies with a known activity (31 different). Then come Computer consultancy and computer facilities management (62200): 7, Public relations and communication consultancy (73300): 4.
None of the 59 companies here shares a current director with another.
Half of the current companies have been registered here for less than 3.8 years.
This address had 6 new registrations in the last twelve months (30 in three years).
1 company went bankrupt while registered here.
1 company is dissolved or no longer in the register. 2 others moved away and still exist.

Recommendations

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.

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. There is no national reference for bankruptcies and new registrations. So they are shown here as counts.

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: 03-11-2026.