Mr. Shirt Inc was founded by Gregg Marschner a native of Trenton, Michigan. After graduating from Western Michigan University in 2008, he went on to serve in the United States Marine Corps for 6 years. During that time he became frustrated with the shirt stays that were available and thought there had to be a better way. In 2012, he came up with a better way and the idea for Mr. Shirt was born. Following his time in the military, he pursued his MBA at Michigan State University concentrating in supply chain management.