A2A S.p.A. is an Italian multi-utility group headquartered in Milan and Brescia and listed on the Borsa Italiana. Formed in 2008 from the merger of AEM Milano and ASM Brescia, the company operates across electricity generation and trading, retail energy supply, electricity and gas distribution (via Unareti), district heating and cogeneration, environmental services and waste-to-energy (A2A Ambiente), and integrated water services in selected territories.
Its generation portfolio includes hydroelectric, natural gas, waste-to-energy, solar, and wind assets. A2A provides energy and environmental infrastructure to households, businesses, and public entities throughout Italy, including long-term power supply arrangements, flexibility and energy management services, and heat supply through district heating networks. The group’s activities support industrial customers’ reliability and decarbonization goals while advancing circular-economy solutions in waste recovery and resource efficiency.