Mark started for Penro on May 14, 1993. He started out as a laborer and eventually moved to an equipment operator, a project superintendent and in April of 1996, he became part owner along with his father, Bud Kinning. Mark bought in again in November of 1998 and has been involved in the management of the business ever since. He became co-owner and President on January 1, 2000 when his brother Ryan and him purchased the business from Bud.