WELSIM was born out of a vision to create a general-purpose simulation platform that could successfully enable a wide range of engineering and science communities to conduct simulation studies with more confidence and less cost. Customers use our software to help ensure the integrity of their innovations. WELSIM comes with all-in-one user interfaces and self-integrated features including pre-processing, solver, and post-processing modules. It is a long-term-support product that aims to accurately model comprehensive engineering problems using the finite element and advanced numerical methods. By taking advantages of progressive algorithms and modern software architecture, WELSIM demonstrates excellent computational performance.