Gardere Wynne Sewell and Foley & Lardner have agreed to merge, effective April 1, creating a firm of approximately 1,100 lawyers in 24 offices in the United States, Mexico, Asia and Europe.

The combined firm will be known as Foley Gardere in Austin, Dallas, Denver and Houston, and Foley Gardere Arena in Mexico City. All other offices will operate as Foley & Lardner. The joint firm’s revenue will total $830 million, placing it among the Am Law 50, the firm said.