This memorandum outlines the justification for a limited-source procurement by the Department of the Navy for renewing F5 BIG-IP Premium Support services under the DoD Enterprise Software Initiative Blanket Purchase Agreement (BPA). The acquisition, led by the Headquarters Marine Corps, requires these services to ensure continued access to critical technical support and security updates for existing licenses utilized by the Administration & Resources Management Division. F5 Networks is the sole provider, making this procurement exclusive to its authorized dealers due to the unique and specialized nature of the services offered. The premium support ensures 24/7 access to F5’s certified engineers, expedited hardware replacement, and proactive maintenance, which are essential for maintaining network security and operational continuity for the Marine Corps. Market research identified two BPA contract holders, but only one was able to provide required services, reinforcing the necessity of limiting sources. The contracting officer determined that this procurement represents the best value, given its critical role in sustaining mission-centric operations and compliance with DoD cybersecurity standards. Future evaluations will seek to incorporate more competition where feasible, ensuring alignment with federal acquisition goals while closely monitoring advancements in relevant technologies.