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Karel Martelstraat 8

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

Activity behind the registrations

24 of the 59 active companies here show no staff, no fixed assets and no other address. 13 of them are under two years old. The 8 sole traders do not count.

41 with accounts for 2024 or later
2 with staff, 16 FTE together
30 with fixed assets
17 at another address too
7 with negative equity
3 with overdue accounts

Main activities

31 different activities across 57 of the 67 companies registered now.

  1. Business and other management consultancy (70200) 9
  2. Computer consultancy and computer facilities management (62200) 7
  3. Public relations and communication consultancy (73300) 4
  4. Limited-service restaurants, excluding mobile food services (56112) 3
  5. Computer programming (62100) 3
  6. Financial service activities, except insurance and pension funding (64310) 3
  7. Other non-specialised retail sale (47120) 2
  8. Other information service activities (63920) 2
Show all 31 activities
  1. Other membership organisations (94999) 2
  2. Full-service restaurants (56111) 1
  3. Publishing activities (58130) 1
  4. Production of cinema films (59111) 1
  5. Other financial services (64999) 1
  6. Certified accountants and tax accountants (69201) 1
  7. Activities of head offices (70100) 1
  8. Activities of building architects (71111) 1
  9. Urban planning and landscape architecture (71113) 1
  10. Engineering and related technical consultancy, excluding land surveyors (71121) 1
  11. Graphic design and visual communication (74120) 1
  12. Translation services (74301) 1
  13. Other professional, scientific and technical activities (74999) 1
  14. Employment placement agencies (78100) 1
  15. Temporary employment agencies and other provision of personnel (78200) 1
  16. Travel agency activities (79110) 1
  17. Tourist information services (79901) 1
  18. Organisation of conventions and trade shows (82300) 1
  19. Socio-cultural adult education (85593) 1
  20. Psychology services (86931) 1
  21. Specialised image, lighting and sound technical services (90393) 1
  22. Activities of membership organisations (94992) 1
  23. Personal service activities (96991) 1

Companies at this address

71 in total
Company At this address Outcome
architects zj+
BE 1035.392.054
Founded in 2026
Registered office
since 03-2026
unit elsewhere
Active here
AS PEB
BE 0831.800.734
Founded in 2010 · total assets €183,700 (2024) · accounts filed late
Registered office
since 12-2010
Active here
AZ PUBLICITE
BE 0545.756.246
Founded in 2014 · total assets €170,219 (2025)
Registered office
since 02-2014
unit elsewhere
Active here
BCA Language Services
BE 0742.739.688
Founded in 2020 · total assets €102,494 (2025)
Registered office
since 02-2020
Active here
BEMA DESIGN
BE 1004.738.668
Founded in 2024 · total assets €83,640 (2025)
Registered office
since 01-2024
Active here
Boostern Belgium
BE 0780.392.417
Founded in 2022 · total assets €56,792 (2025)
Registered office
since 01-2022
Active here
Bricksteel Enterprises Infotech Private
BE 1021.995.166
Founded in 2025
Registered office
since 04-2025
Active here
Bruxelles Champêtre
BE 0692.518.236
Founded in 2018
Registered office
since 03-2018
Active here
Colleaux, Nathalie (sole trader)
BE 0558.826.797
Founded in 2019
Establishment
since 01-2019
Active here
Corelo
BE 1044.570.036
Founded in 2026
Registered office
since 10-2026
Active here
DATAGINEERS
BE 0765.793.917
Founded in 2021 · total assets €49,911 (2025)
Registered office
since 04-2021
Active here
Declercq, Charlotte (sole trader)
BE 0701.762.336
Founded in 2018
Establishment
since 10-2018
Active here
DelnaTech Solutions
BE 0782.801.381
Founded in 2022 · total assets €258,461 (2025)
Registered office
since 03-2022
Active here
Dusesoi, Matthias (sole trader)
BE 0568.794.340
Founded in 2015
Establishment
since 01-2015
Active here
Dyntra
BE 0735.635.132
Founded in 2019 · turnover €1,500 (2023) · negative equity · accounts filed late
Registered office
since 10-2019
Active here
FirstMovers
BE 1022.450.571
Founded in 2025 · turnover €498 (2025)
Registered office
since 04-2025
Active here
FLEX HOME
BE 0807.287.646
Founded in 2008 · total assets €368,719 (2025) · negative equity
Registered office
since 01-2009
Active here
Forum de Redevabilité Humanitaire
BE 1024.822.717
Founded in 2025
Registered office
since 06-2025
Active here
GDG INSPIRE
BE 0792.526.226
Founded in 2022 · total assets €23,592 (2025) · negative equity
Registered office
since 10-2022
unit elsewhere
Active here
HARDY.DIGITAL
BE 0695.438.035
Founded in 2018 · total assets €99,403 (2025)
Registered office
since 04-2018
Active here
INSTITUTE FOR STATE EFFECTIVENESS
BE 1009.829.584
Founded in 2024
Establishment
since 06-2024
Active here
KAZURI CONSULTING
BE 1006.487.539
Founded in 2024 · total assets €60,028 (2025)
Registered office
since 02-2024
Active here
KELTYS
BE 1013.435.808
Founded in 2024 · total assets €103,154 (2025)
Registered office
since 09-2024
unit elsewhere
Active here
LE CAILLOU BLEU
BE 0463.386.321
Founded in 1998 · total assets €4,513 (2025) · negative equity
Registered office
since 05-1998
unit elsewhere
Active here
Leadership Engagement Advocacy
BE 1023.874.986
Founded in 2025
Registered office
since 06-2025
Active here
Lehmann, Gregori (sole trader)
BE 1014.657.909
Founded in 2024
Establishment
since 10-2024
Active here
LEXACCOUNT
BE 0896.435.495
Founded in 2008 · total assets €472,266 (2025)
Registered office
since 03-2008
unit elsewhere
Active here
LOUVENTIS
BE 1044.104.238
Founded in 2026
Registered office
since 10-2026
Active here
Mars Consulting
BE 0762.667.745
Founded in 2021 · total assets €180,721 (2025)
Registered office
since 04-2021
Active here
Martins Batista, Sérgio (sole trader)
BE 1002.026.133
Founded in 2024
Establishment
since 01-2024
Active here
MAYA INTERNATIONAL
BE 1028.805.952
Founded in 2025
Registered office
since 10-2025
Active here
MINDTEKS
BE 0734.821.520
Founded in 2019 · total assets €228,672 (2025)
Registered office
since 10-2019
Active here
MIT ADVANCED SOLUTIONS
BE 0738.988.164
Founded in 2019 · total assets €210,467 (2025)
Registered office
since 12-2019
unit elsewhere
Active here
NET ZERO STRATEGIES
BE 1009.836.217
Founded in 2024 · total assets €186,408 (2025)
Registered office
since 05-2024
Active here
ONCE IN BRUSSELS
BE 0439.656.260
Founded in 1989 · total assets €56,361 (2025)
Registered office
since 12-1989
unit elsewhere
Active here
OptioTech
BE 1022.614.877
Founded in 2025
Registered office
since 04-2025
Active here
People Focus
BE 1018.477.432
Founded in 2025 · total assets €25,596 (2025)
Registered office
since 01-2025
unit elsewhere
Active here
Peter Lang Editions Scientifiques Internationales - P.I.E.
BE 0465.667.405
Founded in 1999 · total assets €206,834 (2025)
Registered office
since 04-1999
Active here
PORCINI
BE 1001.448.883
Founded in 2023 · total assets €91,581 (2025)
Registered office
since 10-2023
unit elsewhere
Active here
PROSONIX
BE 0822.954.136
Founded in 2010 · total assets €394,134 (2025)
Establishment
since 02-2010
Active here
Qadri, Muhammad (sole trader)
BE 1000.601.520
Founded in 2023
Establishment
since 10-2023
Active here
RealAmor
BE 1015.481.815
Founded in 2024 · total assets €10,053 (2025) · negative equity
Registered office
since 10-2024
Active here
RECLAIM
BE 0732.994.059
Founded in 2019
Establishment
since 02-2020
Active here
RegioDev
BE 1021.452.065
Founded in 2025
Registered office
since 03-2025
Active here
RosTech
BE 0799.965.532
Founded in 2023
Registered office
since 04-2023
Active here
Schwartz & Lumbrozo
BE 0763.686.641
Founded in 2021
Registered office
since 02-2021
Active here
Starry Impact Studio
BE 1007.476.741
Founded in 2024 · total assets €25,242 (2025)
Registered office
since 04-2024
Active here
STECKELMACHER-PLISNIER LOCOMOTION
BE 1024.627.430
Founded in 2025 · total assets €8,043 (2025) · negative equity
Registered office
since 06-2025
Active here
SURISEC
BE 0765.343.262
Founded in 2021 · total assets €34,177 (2025)
Registered office
since 03-2021
Active here
Syndicate One
BE 0779.736.280
Founded in 2022 · total assets €1.5m (2025)
Registered office
since 01-2022
Active here

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.
  • 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.
  • Of the companies founded from 2018 to 2020 with their seat in postcode 1000, 7.1% went bankrupt within five years. For Belgium as a whole that is 6.5%.Survival tables
  • 1 company is dissolved or no longer in the register. 2 others moved away and still exist.

Recommendations

  1. 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.
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: 05-11-2026.