Twenty-five firms that appear in this year’s Am Law 100 ranking of the nation’s top-grossing law firms have an office in Atlanta. That is a net gain of one firm from last year.

Cleveland’s Baker & Hostetler (No. 60 on the list, with revenue of $540 million) entered the Atlanta market by acquiring Philadelphia-based intellectual property boutique Woodcock Washburn, which had an office here. The deal was effective Jan. 1.