Looking for a status report on the U.S. legal industry? Three Pennsylvania-based firms provide a peek into some of the major challenges and opportunities faced by a large segment of the market.

Pennsylvania is home to five firms in the Am Law Second Hundred. Three of them—Pepper Hamilton, Buchanan Ingersoll & Rooney and Saul Ewing Arnstein & Lehr—made noteworthy moves in the rankings by gross revenue this year.