A mounting system for a gas turbine engine, comprising: a compressor case portion configured to house rotatable compressor blades; an inlet frame connected to an inlet end of the compressor case portion; an outlet frame connected to an outlet end of the compressor case portion opposed to the inlet end; and a mounting structure including: an axially fore mounting structure (122, 124; 222) connected to the inlet frame; an axially aft mounting structure (134; 234) connected to the outlet frame; and a bridging structure (130,132; 232) including an inboard bridge beam connecting the fore and aft mounting structures, and further including an outboard bridge beam connecting the fore and aft mounting structures, wherein the bridging structure is configured to bridge engine loads across the inlet and outlet frames and is offset from the compressor case, thereby reducing load induced distortion of said compressor case portion; characterised in that the mounting system further includes a pylon hanger axially disposed between the fore mounting structure (122, 124) and the aft mounting structure, wherein the pylon hanger is connectable to the inboard and outboard bridge beams and is axially arranged equidistantly between the fore mounting structure (122, 124) and aft mounting structure. a compressor case portion configured to house rotatable compressor blades; an inlet frame connected to an inlet end of the compressor case portion; an outlet frame connected to an outlet end of the compressor case portion opposed to the inlet end; and a mounting structure including: an axially fore mounting structure (122, 124; 222) connected to the inlet frame; an axially aft mounting structure (134; 234) connected to the outlet frame; and a bridging structure (130,132; 232) including an inboard bridge beam connecting the fore and aft mounting structures, and further including an outboard bridge beam connecting the fore and aft mounting structures, wherein the bridging structure is configured to bridge engine loads across the inlet and outlet frames and is offset from the compressor case, thereby reducing load induced distortion of said compressor case portion; characterised in that the mounting system further includes a pylon hanger axially disposed between the fore mounting structure (122, 124) and the aft mounting structure, wherein the pylon hanger is connectable to the inboard and outboard bridge beams and is axially arranged equidistantly between the fore mounting structure (122, 124) and aft mounting structure. an axially fore mounting structure (122, 124; 222) connected to the inlet frame; an axially aft mounting structure (134; 234) connected to the outlet frame; and a bridging structure (130,132; 232) including an inboard bridge beam connecting the fore and aft mounting structures, and further including an outboard bridge beam connecting the fore and aft mounting structures, wherein the bridging structure is configured to bridge engine loads across the inlet and outlet frames and is offset from the compressor case, thereby reducing load induced distortion of said compressor case portion; characterised in that the mounting system further includes a pylon hanger axially disposed between the fore mounting structure (122, 124) and the aft mounting structure, wherein the pylon hanger is connectable to the inboard and outboard bridge beams and is axially arranged equidistantly between the fore mounting structure (122, 124) and aft mounting structure.