Laurent Ryser

citizen of Sumiswald, La Chaux-de-Fonds

Commercial register

Groupe Chaumont SA

Member of the board of directors · sole signature · Neuchâtel

since Apr 27, 2026
SI STM SA

Member of the board of directors · sole signature · La Chaux-de-Fonds

since Mar 26, 2026
SI Rue du Nord 152 SA

Member of the board of directors · sole signature · La Chaux-de-Fonds

since Jun 14, 2018
Seti LR Switzerland Sàrl

Managing director · Partner · sole signature · La Chaux-de-Fonds

since Dec 22, 2009
Henri Robert SA

Member of the board of directors · sole signature · La Chaux-de-Fonds

SI du Cap-Martin SA

Member of the board of directors · sole signature · La Chaux-de-Fonds

Henri Robert SA

Member of the board of directors · joint signature by two · La Chaux-de-Fonds

until Jun 12, 2026
SI du Cap-Martin SA

Chair of the board of directors · joint signature by two · La Chaux-de-Fonds

until Aug 21, 2025
S.B.T.H SA

Member of the board of directors · sole signature · La Chaux-de-Fonds

until Oct 28, 2024
SI STM SA

Member of the board of directors · sole signature · La Chaux-de-Fonds

until Jul 5, 2024
Petra Gem Sàrl

Managing director · sole signature · La Chaux-de-Fonds

until Jun 17, 2024
Cadrémail Sàrl

Chair of the executive board · sole signature · Val-de-Travers

until Jun 27, 2022
Cadrémail Sàrl

Chair of the executive board · joint signature by two · Val-de-Travers

until Nov 30, 2021
SI du Cap-Martin SA

Member of the board of directors · sole signature · La Chaux-de-Fonds

until Nov 30, 2020
Henri Robert SA

Member of the board of directors · sole signature · La Chaux-de-Fonds

until Apr 5, 2019
Société coopérative de construction et d'habitation Le Corbusier

membre* · joint signature by two · La Chaux-de-Fonds

until Sep 14, 2017
Henri Robert SA

Chair of the board of directors · sole signature · La Chaux-de-Fonds

until Jul 13, 2017
Métalem S.A.

Member of the board of directors · joint signature by two · Le Locle

until Jan 29, 1997