In addition to a network of tram, trolleybus and motorbus routes, ANM operates the Naples Metro system and four urban funiculars.

ANM was formed on 1 July 1995[3] through a reorganization of its predecessor, the Azienda Tranvie Autofilovie Napoli (ATAN) (English: Naples Tramway-Bus-Trolleybus Company), which was also a municipal authority.

The operating fleet at that time included approximately 50 trams, 63 trolleybuses (with 24 more in storage) and a large number of diesel buses.

[7] The company provides some bus service to areas outside the city of Naples proper (Comune di Napoli).

[8] ANM's service includes both express and local bus service connecting Naples' main airport, Capodichino Airport, with the city center and Napoli Centrale railway station (at Piazza Garibaldi).