A2A CICLO IDRICO
800.933.359
A2A CALORE E SERVIZI
800.933.387
UNARETI GAS
MILANO and province 800.131.000
Other municipalities 800.066.722
UNARETI ELECTRICITY
800.933.301
ASVT
GAS 800.911.190
Other services 800.912.812
RETRAGAS
800.066.722
CAMUNA ENERGIA
800.933.301