California Code, Financial Code - FIN § 17008

No foreign corporation shall transact any escrow business in this State without first complying with all the requirements of this division, nor until it has executed and filed with the commissioner a written instrument appointing the commissioner its attorney upon whom all process in any action or proceeding by any resident of this State against it may be served with the same force and effect as if such corporation were formed under the laws of this State, and had been lawfully served with process in this State.  Service of process by a resident of this State upon the commissioner constitutes personal service on the foreign corporation.