Organisation Revenir en haut de la page SIG is a public law institution governed by the Geneva Constitution, the Act on the Organisation of Public Law Institutions (LOIDP) and the Act on the Organisation of the Industrial Services of Geneva (LSIG). The company is managed by the Board of Directors and the General Management. Senior Management Senior Management The Senior Management is composed of the Managing, the Directors and duly appointed members. The Managing Director is appointed by the Board of Directors. He chairs over the Senior Management, which he meets as often as the company’s business requires. Christian Brunier General manager Vincent Collignon Commercial director Gilles Garazi Director Energy Transition Céline Gauderlot Director Finance Stéphane Maret Director Distribution Network Management Robert Monin HR Director Patricia Solioz Mathys Director of Shared Services Alain Zbinden Deputy General Director - Legal and Risks Director Board of Directors Board of Directors SIG's Board of Directors is currently composed of twenty three members: one member of each party represented on the Cantonal Parliament, appointed by the latter, four members appointed by the Council of State, four members appointed by the City Council of the City of Geneva, a member chosen by the Administrative Council of the City of Geneva, three members appointed by the councillors of other municipalities, four members representing the staff of SIG and elected by it. The Board of Directors meets about twenty times a year and ensures the smooth running of the company. Michel Balestra Representative of the State Council - President of SIG Director and General Manager of Balestrafic Former President of HUG Aline Isoz State Council Representative Béatrice Stückelberg-Vijverberg State Council Representative Without voting rights Sylvia Leueunberger State Council Representative Alberto Aliprandi State Council Representative Christine Senti SIG-Staff representative Expert in computer technology Frédéric Hiller SIG-Staff representative Works manager Yves Warpelin SIG-Staff representative Projector designer Daniel Sannicolo SIG-Staff representative Nicolas Aune Representative of the City of Geneva Robert Pattaroni Representative of the City of Geneva Economist Former City Councillor of the City of Geneva Pierre Gautier Representative of the City of Geneva Consultant Thierry Tanquerel Representative of the City of Geneva Hugo Zbinden Representative of the Grand Council Associate Professor UNIGE Pierre Kunz Representative of the Grand Council Former Director of Balexert Former Member and Constituent Denis Wicht Representative of the Grand Council Alexandra Rys Representative of the Grand Council CCIG Communication Manager Roger Golay Representative of the Grand Council René Longet Representative of the Grand Council Former National Councillor Sami Kanaan Représentant de la Ville de Genève Maire de Genève Daniel Devaud Representative of the Grand Council Christophe Senglet Representative of the Municipalities Patrick Malek-Asghar Representative of the Municipalities Lawyer Administrative Consultant of Versoix Ruth Banziger Representative of the Municipalities