The Department of Defense, specifically the United States Naval Observatory (USNO), is seeking information from qualified contractors to provide enterprise systems security services critical for the integrity and availability of Precise Time and Astrometry (PTA) data products. The procurement aims to establish a robust security infrastructure and support services, including cyber security operations, transport engineering, and project management, to ensure the secure dissemination of PTA data essential for navigation systems like the Global Positioning System (GPS). Interested parties must submit their capability statements and relevant experience by November 29, 2024, to Erica Morris at erica.a.morris10.civ@us.navy.mil, as this is a Sources Sought notice and not a request for proposals.