This is a Sources Sought/RFI notice from NSWC Crane seeking potential sources to provide professional engineering and technical support services for specific Naval and Strategic Weapons Systems programs. The work will be performed in various locations including NSWC Crane, Washington D.C., and Cape Canaveral, FL. The Government is considering a Cost-Plus-Fixed-Fee contract with a one-year base and four option years, with a total estimated level of effort of 57 FTEs or 538,288 hours per year. The purpose is to determine the availability and capability of current SeaPort-NxG MAC holders to perform across six defined Task Areas. This notice is for market research only and is not a request for proposals.