PTC Inc. (formerly Parametric Technology Corporation) is an American computer software and services company founded in 1985 and headquartered in Boston, Massachusetts.

PTC has six core product families: Creo, Windchill, Mathcad, Integrity, Servigistics, ThingWorx, ServiceMax, Arbortext Editor.

[7] PTC SLM productset includes: A platform for the rapid development of applications designed for smart, connected sensors, devices, and products – or the Internet of Things.

[14] 1996 - PTC acquires Reflex project modeling and management software technology[16] sold the following year to the Beck Group.

1998 - Company ships Windchill and is considered first to market with internet-based solutions for Product Lifecycle Management (PLM).

[30] Company renames Pro/ENGINEER to PTC Creo and promises the market product design software that is scalable, open, and easy-to-use.

[36] Acquired Internet of Things platform developer ThingWorx for their software applications that connect and track network-enabled products.

[37] 2014 - Acquired Axeda Corporation [38] 2014 - Acquired ATEGO Software, a leader in MBSE (model-based systems engineering) tool used in aerospace, transportation, and automotive industries (such as Alstom Transport and Rolls-Royce Defence) [39] In 1999, PTC created a Global Academic Program designed to support educational initiatives in science, technology, engineering, and math (STEM) skills.

The program aims to partner schools and universities with companies to assist students in developing real-world skills needed for careers in manufacturing, technology, and other STEM jobs.