Winterhalter + Fenner AG is one of the leading electrical wholesalers in Switzerland. Our wide product range includes electro-technical components, installation material, data network products and photovoltaic systems from national and international leading suppliers. More than 450 employees at our 15 locations in German and French-speaking Switzerland and Ticino ensure excellent service. With our subsidiaries Dysbox SA, ElectroLAN SA, Electroplast SA and Fabbri SA, we form Sonepar Suisse. Sonepar Suisse is part of the French Sonepar Group, which operates in over 44 countries and employs around 43,000 people. 25.04.2017 Sonepar is an independent family-owned company with global market leadership in B-to-B distribution of electrical products, solutions and related services. Assisting customers on many markets, the Group achieved 20.6 billion euros of revenue (as of December 31, 2016) through the skills and passion of its 43,000 associates. The density of its network, 239 entities operating in 44 countries on five continents, and the digital solutions developed make customer service and relationships a daily focus. Sonepar’s ambition is to become “La Référence” for all its stakeholders.