Markiesstraat 1

1000 Brussels • 31 registered now · 1 earlierBuilding with many business tenants

exact location from the address register On OpenStreetMap

31 registered now

32 ever registered

1 dissolved or inactive

1 new in 12 months

Activity behind the registrations

9 of the 31 active companies here show no staff, no fixed assets and no other address. 2 of them are under two years old.

18 with accounts for 2024 or later

13 with staff, 2,859 FTE together

17 with fixed assets

13 at another address too

3 with negative equity

3 with overdue accounts

Main activities

19 different activities across 26 of the 31 companies registered now.

Show all 19 activities

Companies at this address

32 in total

Company	At this address	Outcome
ALLEGIS GLOBAL SOLUTIONS (Belgium) BE 0627.963.944 Founded in 2015 · total assets €125,078 (2024) · negative equity · accounts filed late	Registered office since 04-2015	Active here
ALLEGIS GROUP (Belgium) BE 0543.691.037 Founded in 2013 · 37 FTE (2024) · accounts filed late	Registered office since 01-2015 shared director	Active here
ARCADIS BELGIUM BE 0426.682.709 Founded in 1985 · 775 FTE (2025) · group ARCADIS N.V.	Registered office since 01-2011 unit elsewhere	Active here
Arcadis-Fortum-KH Engineering BE 1035.306.932 Founded in 2026	Registered office since 01-2026	Active here
Becommerce BE 0894.199.943 Founded in 2007 · total assets €357,566 (2025)	Registered office since 06-2010 unit elsewhere	Active here
Belgian Mobile ID BE 0541.659.084 Founded in 2013 · 41 FTE (2025)	Registered office since 11-2013 unit elsewhere	Active here
Company Webcast B.V. BE 0684.501.779 Founded in 2017	Branch since 06-2023	Active here
EDF BELGIUM BE 0459.853.343 Founded in 1997 · turnover €182.5m (2025)	Establishment since 02-1997	Active here
ELI LILLY BELGIAN PENSION FUNDS BE 0432.324.545 Founded in 1986	Registered office since 06-1986	Active here
Eli Lilly Benelux BE 0406.754.454 Founded in 1969 · 97 FTE (2025)	Registered office since 08-1969	Active here
Euronext Brussels BE 0242.100.122 Founded in 1990 · turnover €32.5m (2025)	Registered office since 10-2000	Active here
Euronext Corporate Solutions Belgium BE 0804.370.223 Founded in 2023 · 6.1 FTE (2025)	Registered office since 07-2023	Active here
Federaal Agentschap voor Nucleaire Controle BE 0254.487.220 Founded in 1994 · 143 FTE (2025)	Registered office since 07-2003	Active here
FESTIVAL VAN VLAANDEREN INTERNATIONAAL BRUSSEL - EUROPA BE 0410.944.359 Founded in 1968 · 8.1 FTE (2025)	Registered office since 01-2007	Active here
Fonds tot bevordering van het industrieel onderzoek in Vlaanderen BE 0254.056.757 Founded in 1990	Registered office since 12-1990	Active here
FORMA DESIGN STUDIO BE 0552.919.202 Founded in 2014 · total assets €12,108 (2025) · negative equity	Registered office since 05-2014 unit elsewhere	Active here
LUMINUS WIND TOGETHER BE 0646.784.617 Founded in 2016 · turnover €1.8m (2025)	Establishment since 01-2016	Active here
maatschap Arcadis - SBE BE 0716.636.790 Founded in 2018	Registered office since 10-2018	Active here
Ministeries van de Vlaamse Gemeenschap BE 0316.380.841 Founded in 1980	Establishment since 11-2023	Active here
PLAN EUROPE AISBL BE 1020.295.092 Founded in 2025	Registered office since 02-2025	Active here
Plan International België BE 0425.420.917 Founded in 1983 · 67 FTE (2025)	Registered office since 12-1983	Active here
PLAN INTERNATIONAL, INC. BE 0552.712.631 Founded in 2014	Establishment since 03-2014	Active here
Preventieve Gezondheidszorg in Vlaanderen BE 0457.702.220 Founded in 1995	Registered office since 11-1995	Active here
S.M. Arcadis - Assar BE 0663.763.179 Founded in 2016	Registered office since 09-2016	Active here
SD Worx People Solutions BE 0450.864.215 Founded in 1993 · 1,999 FTE (2023) · group SD PATRIMONIUM	Establishment since 04-2014	Active here
SD Worx Sociaal Secretariaat VZW BE 0407.139.583 Founded in 1946 · total assets €3.37bn (2025)	Establishment since 09-2008	Active here
SD Worx Staffing & Career Solutions BE 0689.610.216 Founded in 2018 · 27 FTE (2025) · group SD PATRIMONIUM	Establishment since 10-2019	Active here
SD Worx Staffing Solutions BE 0807.281.213 Founded in 2008 · 1,540 FTE (2025) · group SD PATRIMONIUM	Establishment since 04-2019	Active here
TEKsystems Global Services (Belgium) BE 0786.640.801 Founded in 2022 · 4.4 FTE (2024) · negative equity · accounts filed late	Registered office since 05-2022 shared director	Active here
THV Arcadis - Grontmij BE 0564.886.032 Founded in 2014	Registered office since 09-2014	Active here
TM Arcadis - Sweco - Antea BE 0669.517.358 Founded in 2016	Registered office since 08-2016	Active here
Thiry, Laurent (sole trader) BE 0641.945.109 Founded in 2015	Establishment since 10-2015, left	Inactive out of the register since 30-06-2026

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The building

cadastre and 3D survey

Footprint: 3,876 m²; measured, the ground under the building
Floor area (estimate): ~36,300 m²; 10 storeys, estimated from the building volume

Per current company: ~1,170 m²
Height: 36.3 metres
Volume: 108,824 m³
Plot: 5,332 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

2014

2016

2018

2020

2022

2024

2026

still here moved bankrupt reorganisation dissolved or inactive

Insights on this address

Building with many business tenants

31 companies are registered here now. They are based in a building of about 36,300 m² of floor space. That is about 1,170 m² per company, room enough for an office each. Most are not tied to one another and rent independently in the same building. They are tied as follows: 3 in the SD PATRIMONIUM group, 4 named Arcadis, 4 named Worx, 3 named Plan and 2 with a shared director.

This address has more companies than 99% of Belgian addresses, which have at most ten.
22 have their registered office here, 9 only an establishment or branch.
2 of the 31 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 12 years.
This address had 1 new registration in the last twelve months (2 in three years).
1 company is dissolved or no longer in the register.

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.
Look at how the former companies ended. That says something about the address, nothing about any individual company.

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: 09-11-2026.