A
- Adria Ferries
- Aeroitalia
- Air Dolomiti
- Air Malta
- Air Shuttle
- Airbusalento
- Airport Shuttle Express
- AleTransfer
- Alibrando & Asya Autonoleggi
- Alibus
- Alicost
- Alilaguna
- Alilauro
- Alps2Alps
- Andirivieni Travel
- Anek Superfast
- Appennino Shuttle
- Arenaways
- Arkleand Bus
- Arriva Italia
- ATVO
- Autolinee Federico
- Autoservizi Salemi
- Autostradale
B
C
D
E
F
G
I
J
L
M
N
O
P
R
S
- Sais
- Sais Autolinee
- Salerno Incoming
- San Vito Bus Sharing
- Sardabus
- Satam
- Schiaffini Travel
- Segesta Autolinee
- Seremar
- Shopyle
- Shuttle Alghero
- Shuttle Italy Airport
- Sicilbus S.p.A.
- Simet Bus S.P.A.
- Siremar
- SIT Bus Shuttle
- Sita Basilicata (Marozzi)
- Sita Salerno
- Sita Salerno (Marozzi)
- SkyAlps
- SNAV
- Snow & Feelings
- Sorrento Shuttle Express
T
V
W