ANSYS HISTORY- ANSYS, Inc. is an American Computer-aided engineering software developer company, headquartered south of Pittsburgh in Cecil Township, Pennsylvania, United States. Founded by The company was founded in 1970. by John A. Swanson as Swanson Analysis Systems, Inc (SASI). Its primary purpose was to develop and market finite element analysis software for structural physics that could simulate static (stationary), dynamic (moving) and thermal (heat transfer) problems. SASI developed its business in parallel with the growth in computer technology and engineering needs including finite element analysis , structural analysis , computational fluid dynamics , explicit and implicit methods , and heat transfer . .The company grew by 10 percent to 20 percent each year, and in 1994 it was sold to TA Associates. The new owners took SASI's leading software, called ANSYS, as their flagship product and designated ANSYS, Inc. as the new company name.[citation needed] A