Patrick Longchamp

citizen of Assens, Onex

Commercial register

Longchamp Architectes Sàrl

Managing director · pour 200 parts de CHF 100 · sole signature · Genève

since Jan 27, 2026
CLR Architectes SA

Member of the board of directors · joint signature by two · Genève

until Nov 12, 2025
ASSOCIATION FERDINAND

membre* · joint signature by two · Onex

until Mar 28, 2025