A2A S.p.A. is an Italian utility company born out of the merger of two independent Italian companies, AEM (Azienda Energetica Municipale) of Milan and ASM Brescia (Azienda dei Servizi Municipalizzati) at the end of 2007. It is the first Italian operator in the private urban waste sector to work 24 hours for an energy production of 1.5 TWh. It is the third largest company in Italy in the production and distribution of electricity.