SketchUp - 3D for Everyone
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
Autodesk Revit - Autodesk Revit is building information modeling software for architects, structural engineers, MEP engineers, designers, and contractors.
Altium PCB Designer - Altium offers a top-notch, best-in-class PCB Designer to give engineers the tools they need to interlink with each side involved in the electronic design process.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Ktechlab - KTechLab is an IDE for microcontrollers and electronics.