SolidWorks - Dassault Systèmes SolidWorks Corp. develops and markets 3D CAD design software, analysis software, and product data management software. SolidWorks is the leading supplier of 3D CAD product design engineering software.
SketchUp - 3D for Everyone
FreeCAD - An open-source parametric 3D modeler
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.
e-Builder - e-Builder is a construction program management solution that manages capital program cost, schedule, and documents.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.