HESI Security and Network Alarm Services started local security companies to provide services to the local community. The two companies came together as TAG to better serve client security needs and to be able to offer a wider variety of services and installation. We have built our name in Oklahoma City and surrounding areas by offering exceptional services and technology. Our local monitoring and technical staff insures greater service for our clients. We maintain our "A" rating with the BBB. Our team goes through an extensive background check and has years of experience. TAG offers the latest technology available in security equipment. It's easy to understand why TAG is winning clients everyday.