CHEMCAD - We equip chemical engineers with integrated and intuitive process simulation software to tackle projects large and small. Discover how CHEMCAD can help you design, analyze and measure simple and complex processes like never before.

Pspice - OrCAD PSpice technology provides the best, high-performance circuit simulation to analyze and refine your circuits, components, and parameters before committing to layout and fabrication

Aspen HYSYS - Aspen HYSYS is a software solution for chemical process simulation and modeling.

Solve Elec - Solve Elec is a free educational program to draw and analyze electrical circuits.

gPROMS - Oil and Gas Simulation and Modeling

PCBWeb - PCBWeb is a 100% free Windows desktop CAD application for designing and manufacturing electronics...