Applied Technical Services, a provider of testing, inspection, certification and compliance services and a portfolio company of Odyssey Investment Partners LLC, has bought Process Instruments LLC, Instrumentation Technical Services LLC and Accu-Chek.

Process Instruments offers instrument calibration services, with a focus on global customers in regulated end markets. Instrumentation Technical Services is a provider of calibration and metrology services to pharmaceutical, food and aerospace end markets. Accu-Chek is a calibration and dimensional inspection services company serving the automotive, medical and aerospace end markets. The additions of PI, ITS and AC work to drive ATS’ service offering to its customers and expand its footprint in regulated end markets such as life sciences, food, medical and aerospace.