JANESVILLE, Wis. — JP Cullen, a construction management firm headquartered in Janesville, was founded in 1892 by John Patrick Cullen as a construction company. 

The firm now employs more than 650 people. 

Co-President George Cullen is now the fifth generation of the Cullen family to lead the company. 

Some of their work has included jobs at Camp Randall, the Wisconsin State Capitol and the Milwaukee Bucks’ training facility.