Insurance Agents Alliance of Texas, Inc. (IAAT), formerly Central Texas Agents Alliance, Inc. (CTAA), was established in 2002 serving as the Master Agency of SIAA for Central and East Texas. Our role is to provide independent agents with the opportunity to flourish by opening access to benefits typically available only to large regional agencies. Associated with Watkins Insurance Group, our Partner Agency, IAAT allows our member agencies to have access to markets, programs and bonuses not otherwise available to them.