The Department of Defense, through the Naval Surface Warfare Center, Port Hueneme Division (NSWC PHD), is conducting market research to identify potential sources for support services related to the SPY-1 Radar and MK 99 Fire Control System for fiscal years 2026 to 2029. The procurement encompasses a range of engineering services, including equipment evaluation and modifications, integrated logistics support, maintenance, and field engineering services associated with the AEGIS Fire Control System and AN/SPY-1 Transmitter Group configurations. These services are critical for maintaining the operational readiness and effectiveness of naval defense systems. Interested parties are encouraged to submit their capability statements and company information to Amanda Vidal at amanda.n.vidal.civ@us.navy.mil, with a copy to Ashley Krasnoff at ashley.y.krasnoff.civ@us.navy.mil, by the specified deadline, as this sources sought notice is intended for informational and planning purposes only.