SketchUp - 3D for Everyone
AutoCAD MEP - AutoCAD MEP software helps you draft, design, and document building systems.
Autodesk Revit - Autodesk Revit is building information modeling software for architects, structural engineers, MEP engineers, designers, and contractors.
DataCAD - DataCAD is a computer-aided design and drafting software for 2D and 3D architectural design and drafting
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
AutoCAD Plant 3D - AutoCAD Plant 3D is a BIM software that lets you create, modify, and manage schematic piping and instrumentation diagrams.