This is a Sources Sought Notice for market research to identify capable firms for technical and program support services related to the Navy's Strategic Systems Programs and Nuclear Weapons Surety. The work requires expertise in areas like systems engineering, program management, and nuclear weapons security, with an estimated need for 5 FTE personnel performing both off-site and on-site work at the Washington Navy Yard in Washington, D.C. The anticipated Period of Performance includes a base year from December 11, 2026, to December 10, 2027, plus four one-year options. Interested firms must submit a detailed White Paper capability statement demonstrating recent and relevant experience on efforts of similar scope and complexity, with relevant experience defined as work with an annual incurred cost of at least $2 million. The contract type is expected to be Cost Plus Fixed Fee.