One of the original shelter organizations, SIMSA has owned and operated facilities employing thousands of people since its inception in 1975. With complete support from the local, state and federal governments in Mexico, SIMSA is successful in attracting and maintaining industrial and commercial investments. SIMSA is dedicated to promoting Northwestern Mexico’s states Sonora and Baja California North. SIMSA currently has several facilities to suite, For Lease. These facilities are located across the Arizona and California borders. Please go to our website for more information.