This Sources Sought notice seeks potential sources to provide non-personal engineering, technical, logistics, and program management support services for systems under the cognizance of the Systems Hardware and Test Division at NSWC Crane. The required services support development, maintenance, and sustainment of systems including SP27, SP23G, MK305, Air Force Minuteman III, and Army and Navy Hypersonic programs. Performance will primarily occur at NSWC Crane, with other sites as directed. The government is considering a Cost-Plus-Fixed-Fee, Level of Effort contract with a one-year base period and four one-year options, requiring an estimated 95 FTEs per year. Only responses from current SeaPort-NxG MAC holders will be considered for this market research.