The Department of Homeland Security's Cybersecurity and Infrastructure Security Agency (CISA) is seeking qualified firms to provide Enterprise Engineering and Operations Support Services (CEEOSS) to modernize its IT infrastructure. The primary objective is to assist CISA in establishing robust enterprise IT capabilities, including technology evaluation, cloud migration, and enhanced IT service performance, security, and availability. This opportunity is critical for supporting CISA's mission to protect the nation's physical and cyber infrastructure, particularly in light of evolving congressional requirements and strategic priorities. Interested parties must submit their capabilities statements by 1:00 PM Eastern on December 22, 2025, to the designated contacts, William Dunlap and Eva I. Shaw-Taylor, via email.