Commercial Systems Group (CSG) core business is to install and service code required life safety, security and emergency comm ... unication systems. CSG represents industry leading manufacturers to support large facility: fire alarm, fire sprinkler, nurse call, access control, intercom, IP video surveillance, mass notification, and AV systems. As an example CSG has been an Edwards EST Authorized Strategic Partner in the greater Orlando since 1987. CSG is committed to a customer service culture that makes it easy for our customers to do business with us. read more