After opening a San Francisco office five years ago, Kirkland & Ellis last week ventured 30 minutes away and set up a shop in Palo Alto, Calif. It’s the firm’s sixth U.S. office and its third on the West Coast.

The move, the firm says, is driven by the growth of Kirkland’s San Francisco Bay Area practice; business has surged to the point that it needs a larger core of lawyers in the region to draw from.