As a leading manufacturer of security devices, Portman has been dedicated to supplying GPS/GPRS/GSM tracking systems, car alarms, audio systems, and home security systems for nearly three decades. Established in 1983 in Taiwan, Portman began as a manufacturer of sirens and quickly built up a solid reputation based on the advanced design and exceptional reliability of its products. This successful beginning fueled a rapid expansion into the vehicle and home security system markets.


In order to remain competitive, more than 100 highly qualified R&D engineers at Portman ensure its top position in the world-wide market place in terms of product development and design. Armed with the most advanced professional hardware and software (CAD, PRO-E, PRO-TEL, in-circuit emulator, static electricity tester, etc), Portman is always ready