Comprehensive Security Services, Inc. (CSSI) has been in the private security business since 1989 and is one of the leading security providers in the industry. My late friend, Sultan M. Walha, and I started CSSI with the vision of providing private security to both the public and private sector. With our certified, highly-trained, and dedicated security personnel, as well as our committed and knowledgeable support staff and managers. CSSI has grown into a leading security company with contracts that vary in size from small private businesses to large government entities.