JACK MCMULLIN - President and owner. Jack earned his BS and MS in Aerospace Engineering from the University of Minnesota in 1973. Jack worked for MTS Systems from 1974 to 1982 when he joined Trask Engineering as an applications/sales engineer. Jack and Carol purchased the company from John Trask in 1992.

TONY MARQUETTE - Sales Engineer. Tony earned his BA in Physics from the University of Minnesota in 1997 where he graduated 2nd in his class. Tony worked for two years as the Physics Lab Supervisor at the University. Tony worked for Presto Contracting where he was responsible for sales and management of "build-out" projects for the Carlson Companies from 1996-98. Tony joined Instrumentation Resources in 1998.

SHELLEY SELLMAN - Customer Service/Secretary. Shelley studied for two years in accounting and business education at night school while working as secretary to the president of a manufacturer’s rep in the piping and valve industry (from 1978 to 1984). Shelley joined Trask Engineering in 1984 taking over the secretarial and inside sales responsibilities.

CAROL MCMULLIN - Financial Officer. Carol earned her BA in 1973 from the University of Minnesota in Education. Carol taught mathematics at the Junior High level for two years. She joined MTS Systems as a software engineer in 1975. She left MTS Systems in 1982 to start her family. From 1984-1988 Carol was Treasurer for the City of Medicine Lake. In 1992 Carol took over the responsibility of Financial Officer for Instrumentation Resources.

Instrumentation Resources serves customer’s throughout the states of Minnesota, North Dakota, South Dakota, Iowa, and Western Wisconsin.