KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
AutoCAD MEP - AutoCAD MEP software helps you draft, design, and document building systems.
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
AutoCAD Arch - Design and document more efficiently with the AutoCAD Architecture toolset, created specifically for architects.
Altium Designer - PCB Design Software
AutoCAD Plant 3D - AutoCAD Plant 3D is a BIM software that lets you create, modify, and manage schematic piping and instrumentation diagrams.