What are the different bus companies in Mauritius?

There are around 13 main bus companies but lots of other individual operators:

• National Transport Corporation (NTC), launched in 1979 - Website
• Rose Hill Transport (RHT), launched in1954 - Website
• UBS United Bus Service
• TBS Triolet Bus Service
• MBT, Mauritian Bus Transport
• I.O. Individual Operators
• BOCS(N) Bus Owners’ Co-operative Society (North)
• PLBOCS Port Louis Bus Owners’ Co-operative Society
• BOCS(F) Bus Owners’ Co-operative Society (Flacq)
• BOCS(S) Bus Owners’ Co-operative Society (South)
• QBBOCS Quatre Bornes Bus Owners’ Co-operative Society
• MFBOCS Moka Flacq Bus Owners’ Co-operative Society
• EBOCS Eastern Bus Owners’ Co-operative Society
• GPSBOCS Grand Port – Savanne Bus Owners’’ Co-operative Society
• CPEBOCS Curepipe Bus Owners’’ Co-operative Society
• GPFBOCS Grand Port – Flacq Bus Owners’’ Co-operative Society
• STHBOCS Southern Bus Owners’ Co-operative Society
• OAP Old Age Pensioners

Hope that helps.