This is a market research notice, not a solicitation, seeking small businesses capable of providing modification, integration, engineering, production, testing, logistics, and sustainment support for Special Operations Forces/Personnel Recovery (SOF/PR) and Rotary Division aircraft systems. The anticipated security classification for this effort is SECRET, requiring contractors to support classified operations and facilities. No specific timelines, budget amounts, or location for performance of services are mentioned in this description. The government will not reimburse any costs associated with responding, and participation does not guarantee future contract involvement. This notice is issued solely for information and planning purposes to identify capable sources.