For CNC programming we use the following software by NC Graphics
Machining Strategist - a 3D machining solution, with high speed machining capabilities.
ToolMaker - an integrated CADCAM solution offering 2D and 3D design together with 2½D, 3D and 4/5-axis machining.
ViewCut - a toolpath verification package,
with the option to import and export files in various data formats.