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LUMAR

Active
Public limited companyfounded 1988active for 38 yearsRue du Mont-Lassy 62, 1380 Lasne, BelgiumKBO/BCE: BE 0435.227.023
Summary

LUMAR has been active since 1988 and the Belgian Official Gazette contains no insolvency or warning signals. The 2024 annual accounts show equity of €1.4m and a net result of -€119,405. Equity remains stable across the filed financial years (±0% per year). Its solvency ranks better than 51% of 4,855 sector peers (NACE 68, financial year 2024). The computed 12-month bankruptcy probability is 1.3% (low).

Directors

Directors
2 directors, 1 in day-to-day management, last change in 2026

Board 2

SONNEVILLE Stéphan
Director · since 25-06-2025
Current
J.S. IMMO srl
Director · since 30-06-2026 · Legal entity · permanent representative: Noa Sonneville
Current

Day-to-day management 1

SONNEVILLE Stéphan
Managing director · since 22-09-2025
Current

Permanent representatives 1

Noa Sonneville
Permanent representative · since 30-06-2026 · for J.S. IMMO srl
Current
Derived from published Gazette deeds. The KBO keeps the official list of office holders; we do not read it, so the two can differ. See the directors and other office holders in the KBO →
Not every act has been read: a resignation may still be missing
8 of this company's 13 Belgian Official Gazette acts have not been read yet. Appointments and resignations recorded in them are not yet in the list of directors: someone who resigned there may still be listed as sitting. The acts are in the Timeline.

Mandate history

5 people since 2025, 2 in office
Show
  • Board
  • Day-to-day management
  • began earlier
Mandates per person, with start and end dates
Name Functions and periods
SONNEVILLE Stéphan
  • Director, from 25-06-2025 to date
  • Managing director, from 22-09-2025 to date
J.S. IMMO srl
  • Director, from 30-06-2026 to date
Ophélie Sonneville
  • Director, until 08-09-2026
Victorien Sonneville
  • Director, until 08-09-2026
DUQUESNE Philippe
  • Director, until 03-10-2025
See the board, name and seat on a given date →

Owners and capital

Owners

1 owner

Chain of control

  1. ATMOS INVESTMENT 99.99%
  2. LUMAR

Highest known parent: ATMOS INVESTMENT. The sources do not say who stands above it.

According to the 2024 annual accounts of LUMAR and those of the other companies, the acts in the Belgian Official Gazette and the LEI register. Annual accounts state the shareholders that notified the company under article 7:225 of the Code of Companies and Associations and the parent companies that consolidate it. The register of ultimate beneficial owners (UBO) is not public: who ultimately stands behind a natural person or a foreign parent is not stated here. A company that does not include these statements in its annual accounts, or does not have to, is not listed.