This is a Sources Sought notice for a Navy contract supporting the Navy Experimental Diving Unit (NEDU), requiring services in diving, biomedical, IT, logistics, and program management. A Cost Plus Fixed Fee task order is anticipated, with a base period of 12 months and four one-year option periods. Only current SeaPort MAC holders may respond, as submissions from non-holders will not be considered. No specific budget amount or performance location is mentioned in the provided description. No submission timelines are included in this summary.