ewz is one of the ten top-selling energy service companies in Switzerland and supplies electricity to the city of Zurich and parts of the Canton of Graubünden. Our approximately 1,200 employees, including around 100 in Graubünden, are employed by 223,000 customers. We also serve public lighting and public clocks in the city of Zurich. We make up around 40 learners each year in 13 different professions.