CHE112979390c/o Haute école de musique - Conservatoire supérieur de musi Rue de la Synagogue 35, 1204 Genève
FONDATION YVONNE SIGG is a Swiss Stiftung based in Genève, registered in the commercial register.▍
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Company facts reflect public commercial-register data. Officer and relationship data is derived from published register text. Register data as of 4 July 2026.
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