The Air Force District Washington, Acquisition Division has a requirement for General Algebraic Modeling System (GAMS/CPLEX) software renewal maintenance services (10 user licenses). The Government's requirement is to (1) obtain software especially useful for handling large, complex, one-of-a-kind problems which may require many revisions to establish an accurate model; (2) ensure installation of software patches, updates and release upgrades and (3) provide maintenance, troubleshooting and training as required. The purpose of this sources sought is to seek small businesses/vendors that might be capable and interested in providing GAMS/CPLEX maintenance support. Maintenance support to be performed will be within the North American Industry classification Systems (NAICS) code 511210