Headquartered in North Andover, Massachusetts, Portman is the world’s largest OEM manufacturer of GPS/satellite/GSM security products. With its twenty-eight year background, Portman has rapidly grown to become one of the world’s leading complete solution providers, designing and manufacturing GPS tracking devices catering to every make and model of small automobile, trucks, trailers, plant equipment, and motorcycles as well as pet and personal tracking.  Portman’s products are used for a variety of applications including facility security, AVL, fleet management, tracking, mobile resource management, location-based services, individual protection, emergency response, covert operations and RFID integration and logistics. Portman works with solutions providers, manufacturers, software companies, and end-users in over 70 countries involved in the automotive, government, energy and green technology, entertainment, produce, retail, telecommunications, healthcare, security, agriculture, transportation, law enforcement and numerous other industries.  The company is headquartered at 510 Turnpike Street North Andover, MA 01845 USA; phone (978) 208-4770; fax (978) 208-4771. Please visit www.portmansecurity.com.