Maximize Your Membership. The State Bar of Texas offers services to help Texas attorneys with their law practices.Please fill out the registration form below. Every lawyer, approved for admittance to practice law in Texas, is required to register with the State Bar of Texas. To speak with a representative, please call 800-843-9053 if you are in California. If you are calling from out-of-state, please call 415-538-2000. Join State Bar of Texas Executive Director Trey Apffel as he highlights the many benefits available to Texas Bar attorneys. The ABA offers countless resources to lawyers, judges, law students and those who are interested in law-related issues. How Can I Contact the State Bar of Texas? This list provides a list of such organizations with links to additional contact information, including the address and phone number.