SMath Studio - Tiny, powerful, free mathematical program with WYSIWYG editor and complete units of measurements support.
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.
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.
Aspen HYSYS - Aspen HYSYS is a software solution for chemical process simulation and modeling.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
gPROMS - Oil and Gas Simulation and Modeling