SketchUp - 3D for Everyone
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
ArchiCAD - ArchiCAD 16 enables BIM modeling with a new green approach to planning. Create anything you need with ArchiCAD's flexible new features for design.
FreeCAD - An open-source parametric 3D modeler
e-Builder - e-Builder is a construction program management solution that manages capital program cost, schedule, and documents.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming