CGL Electronic Security, Inc. | 816 followers on LinkedIn. Leaders in Security Integration. Delivering Service Excellence! | CGL is a trusted and knowledgeable security systems strategic advisor. Thanks to our hard working, exceptionally talented team, along with our unwavering commitment to outstanding service, we have come to be regarded as the leading security systems integrator in the region. We deliver customized and secure systems for all types of clients in a varying range of industries.