When Daralyn Durie and Ragesh Tangri left San Francisco’s Keker & Van Nest to start their own firm, they weren’t alone. It was 2009 — the height of the recession. Attorneys across the country, recognizing opportunities in the new economic climate, had decamped from bigger law firms to try their luck at more entrepreneurial ventures.

Nearly three years later, Durie and Tangri have expanded their San Francisco firm, Durie Tangri, to 15 lawyers. Many of their clients are holdovers from their days at Keker, including Genentech Inc. and Google Inc., but the firm has lured additional clients by offering alternative billing options and lower hourly rates.