EPLAN Electric P8 - CAE software solution for project planning, documentation and administration of electrotechnical automation projects.
Floorplanner - Floor plan interior design software. Design your house, home, room, apartment, kitchen, bathroom, bedroom, office or classroom online for free or sell real estate better with interactive 2D and 3D floorplans.
AutoCAD Electrical - AutoCAD Electrical design software is electrical engineering software for electrical CAD.
Sweet Home 3D - Sweet Home 3D is a free interior design application that helps to draw the plan of house, arrange furniture on it and visit the results in 3D.
QElectroTech - QElectroTech is a free software to create electric diagrams.
SketchUp - 3D for Everyone