[company_age]69.0[/company_age][employees]1,001-5,000 employees[/employees][description]MM Spa, founded in 1955 as Metropolitana Milanese, is a unique engineering firm deeply intertwined with the city of Milan's development and infrastructure. Initially focused on designing the city's metro system, MM Spa has evolved to encompass a diverse range of services crucial to Milan's urban ecosystem. These include managing the city's integrated water service, overseeing public residential buildings, and maintaining municipal properties like schools and sports facilities. A distinctive feature of MM Spa is its operation of the Centrale dell'Acqua di Milano, a corporate museum dedicated to water-related themes, showcasing the company's commitment to public education and engagement.  MM Spa's close collaboration with the Municipality of Milan sets it apart from typical engineering firms, highlighting its role as a key partner in the city's growth and service delivery.[/description][ps]Metro system design, integrated water service management, public housing management, municipal property maintenance[/ps]