Samuel P. Geisberg was an engineer, entrepreneur, and software developer who founded Parametric Technology Corporation (PTC), now known as PTC Inc., in 1985. Born in the Soviet Union, Geisberg emigrated to the United States in 1974.
PTC
PTC Inc. is a leading technology company that specializes in developing software and solutions for computer-aided design (CAD), product lifecycle management (PLM), Internet of Things (IoT), augmented reality (AR), and other related fields.