KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
SOLIDWORKS CAM - SOLIDWORKS CAM is an add-in that provides you the leverage of computer-aided manufacturing, allowing you to generate g-code and m-code for CNC machining of different parts.
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
Inventor CAM - Inventor CAM is one of the agile, integrated CAM software, aiding out users to streamline their manufacturing process having rich functionalities and features in place.
QUCS - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.
Autodesk Fusion 360 - Integrated CAD, CAM, and CAE featuring collaborative editing and cloud-based computation.