After working for one of the nation’s preeminent management-side labor and employment firms, Mr. Wigdor founded his own law firm specializing in employment litigation, Thompson Wigdor LLP, which he co-founded with Kenneth P. Thompson, a fellow lawyer in Morgan Lewis’s Labor & Employment department. The firm, which was re-named Wigdor LLP after Thompson became District Attorney of King’s County, New York in 2014, continues its practice under Mr. Wigdor’s direction.