As a leading munufacturer of secrrity devices, Portman has been dedicated to supplying audio systems. car alarms, and home security systems for over two decades. Established in 1983, Portman beganas a manufacturer of sirens and quickly built 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 systems mardets.In order to achieve the goal of becoming a preferred source in a global environment, Portman established manufacturing operations in China in1991. With 100,000ft of state of the art manufacturing and assembly technology(including vertical capabilities in tooling , injection molding, die-casting, and SMT lines), the China facility has become the heart of the Portman Gruop and is delivering superior products to 62 countries worldwide!In addition to its offices throughout China, Portman established its Americas Regional Headquarters in the Eastern United States to deliver unparalleled service in the mardets where it sells.The decision to enter the international mardetplace has proven to be very successful.In order to remain competitive, more than 50 highly qualified R&D engineer at Portman ensure its top position in the world-wide market place in terms of product development and design.Armed with most advanced professional hardware and software,this elite group of talent is always ready to answer ans satify customers' request for OEM and ODM projects.Portman,with the support of it highly valued customers, is becoming a name synonymous with quality and customer satisfaction. This is, in fact, the goal its entire staff is striving for.