GSSC is a multi-dimensional, full service company offering comprehensive and customized security solutions. As a security leader since 1946, and the largest privately held, full service security company in the Midwest, we have the knowledge and expertise to handle every aspect of commercial security, residential security and government security. We believe that the key to success is to provide the very best people, security products and services that will meet and exceed our individual customer’s needs and expectations. A legacy of growth, diversity, continual learning, and listening to our clients has made GSSC “the premier resource for safety and security.”