The Missile Defense Agency (MDA) is conducting a Request for Information (RFI) to assess industry capabilities for follow-on requirements related to the Sea-Based X-Band Radar (SBX) and associated software development. The SBX, an advanced X-band radar system mounted on a semi-submersible platform, plays a crucial role as a midcourse sensor within the Missile Defense System, enhancing the ability to track and discriminate ballistic missile threats. This initiative aims to gather market insights for software engineering support, systems engineering, and capability upgrades, with responses due electronically by the specified deadline. Interested parties should contact John Michael at john.michael@mda.mil or Logan Phifer at logan.phifer@mda.mil for further information, noting that participation is voluntary and no funding is authorized for this RFI.