PowerMill - PowerMill is an advanced CAM software that comes with a flexible way to get done with your complex high-speed and five-axis machining processing.
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
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.
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
MeshCAM - MeshCAM is the fastest way to generate gcode
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.