Inventor - Inventor is a 3D CAD software that lets you quickly create 3D models with embedded intelligence, intuitive workflows, and optimized performance.

LinuxCNC (the Enhanced Machine Control) - LinuxCNC: an open source CNC machine controller. It can drive milling machines, lathes, 3d printers, laser cutters, plasma cutters, robot arms, hexapods, and more.

IronCAD - IronCAD is intuitive 3D CAD software that increases efficiency and can be used standalone or to complement an existing design environment.

Vectric Aspire - The complete software solution for CNC Routing,

Ayam - Ayam is a free 3D modelling environment for the RenderMan interface, distributed under the BSD...

Mastercam - Mastercam's Dynamic Milling is a game changer for us.