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
Autodesk Revit - Autodesk Revit is building information modeling software for architects, structural engineers, MEP engineers, designers, and contractors.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Rhino 3D - To be an effective designer today, you need tools to quickly develop your designs and accurately communicate them to everyone in the product research.