Peter T. Dameris joined On Assignment Inc. in 2003. Under Dameris’ leadership, On Assignment has grown from $200 million to $1.44 billion in 2012. The company’s 2012 acquisition of Apex Systems, one of the largest and fastest-growing U.S. IT staffing firms, launched it to the No. 2 spot on the 2013 list of largest U.S. IT staffing firms and the No. 13 spot on the 2013 list of largest U.S. staffing firms. He was named the Ernst & Young Entrepreneur Of The Year in the services category for Greater Los Angeles in 2012.