Blender - Blender is the open source, cross platform suite of tools for 3D creation.
FreeCAD - An open-source parametric 3D modeler
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
MakerSCAD - Powerfull 3D design tool for 3D printing, virtual reality and game engine.
ZBrush - ZBrush is a digital sculpting and painting software solution.
DynaMaker - Cloud service for Visual Product Configuration with parametric geometry and CAD / BIM