IET Systems has established vendor relationships with the best manufacturers in the industry including, Ameristar, RSSI, Tymetal, Gibraltar, HySecurity, Tilt-A-Way, Boone Edam, Axis, Avigilon, Aiphone, Bosch, Panasonic, Corning Fiber, Honeywell, Doorking, Lift Master, Linear, Altronix, Securitron, and many more.