A compressor includes a shell (12), first (18) and second (25) compression mechanisms, first (20) and second (27) motor assemblies, first (34) and second (46) suction inlet fittings attached to the shell, and first (38) and second (50) discharge outlet fittings attached to the shell. The first and second compression mechanisms (18;25) are disposed within the shell. The first and second motor assemblies (20;27) are disposed within the shell, drive the first and second compression mechanisms (18;25), respectively, and are operable independently of each other. The first suction inlet fitting (34) provides fluid to the first compression mechanism (18). The first discharge outlet fitting (38) receives fluid compressed by the first compression mechanism (18). The second suction inlet fitting (46) provides fluid to the second compression mechanism (25). The second discharge outlet fitting (50) receives fluid compressed by the second compression mechanism (25).