Dietrich is a principal owner of TOPS Staffing LLC, AllTek Staffing & Resource Group Inc., e-Staff Consulting Group, AccountStaff Inc., Sterling Office Professionals, and TVS Inc. She began the western chapter of the Pennsylvania Staffing Association, an ASA-affiliated chapter, and served as its president for three years. Cepicka-Dietrich also has served on the ASA chapter leadership council and the chapter past presidents committee.