At the age of 19, Bresnahan became the chief financial officer of his grandfather's highway electrical business, Kuharchik Construction in
Exeter, Pennsylvania. Bresnahan is the owner of RPB Ventures, a real estate development company. The bulk of Bresnahan's real estate projects are on and around Main Street in
Pittston, Pennsylvania. Bresnahan has served on a number of voluntary boards in Northeastern Pennsylvania including as interim president of the SPCA of Luzerne County board of directors, past president of Wyoming Rotary Club, and treasurer of the TecBRIDGE board and Automated Vehicle Coalition. He also served on the boards for Junior Achievement of NEPA,
Big Brothers Big Sisters of NEPA, Luzerne County Industrial Development Authority,
National Electrical Contractors Association and IBEW 163. Currently, Bresnahan serves on the boards of the SPCA of Luzerne County, Forty Fort Cemetery Association, and Catholic Youth Center. == United States House of Representatives==