The Department of Defense, through the Naval Sea Systems Command (NAVSEA), is seeking capable contractors for the follow-on effort related to the AEGIS Fielding and Sustainment (AEGIS F&S) contract, N00024-23-C-5123. The primary objective is to provide software engineering, maintenance, testing, and installation services necessary to sustain and upgrade AEGIS-based combat systems utilized by the U.S. Navy, U.S. Coast Guard, and allied naval forces. This initiative is critical for ensuring the effective integration and functionality of existing AEGIS Weapon System and Combat System installations, as well as managing the AEGIS Common Source Library software. Interested parties must submit a completed Military Critical Technical Data Agreement (DD Form 2345) or a valid CAGE Code to the designated contacts within seven calendar days of the Sources Sought release, with responses due by October 2024. For further inquiries, contact Jessica Zhang at jessica.p.zhang.civ@us.navy.mil or Cady Ramirez at cady.h.ramirez.civ@us.navy.mil.