[2] Integrity, a PTC Product manages systems and software development processes and connects engineering artifacts, including requirements, models, code and test, ensuring comprehensive lifecycle traceability.

PTC's Integrity Business Unit supports customers[3] across these four core industries: Automotive, Aerospace & Defense, High Tech Electronics and Medical Devices.

Previously named Mortice Kern Systems, MKS was founded in 1984 by four University of Waterloo students, Randall Howard, Alex White, Trevor Thompson and Steve Izma.

Continuing with acquisitions, in 1999 the Interoperability Business Unit merged with DataFocus Inc., a long time OEM partner, and was charged with the evolution of the MKS Toolkit and NuTCRACKER products.

Shortly after, Michael W. Harris, joined and was appointed President and COO in July 2002, and Douglas Sawatzky, formerly VP Finance, as Chief Financial Officer in February, 2006.

[8] November 3, 2010, Michelle Dickey joined MKS as Vice President Federal Sales to spearhead a team for the North American Government market.