Allegient Inc.,* Arlington, Virginia, is awarded a $31,851,343 cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity contract. This contract procures non-technical administrative contractor support services for the F-35 system development and demonstration, follow-on development, low rate initial and full rate production, as well as the sustainment efforts for the Air Force, Navy, non-Department of Defense participants, and Foreign Military Sales customers. Work will be performed in Arlington, Virginia (81.27%); Wright-Patterson, Ohio (14.05%); and Fort Worth, Texas (4.68%), and is expected to be completed in December 2027. No funds will be obligated at the time of award; funds will be obligated on individual orders as they are issued. This contract was competitively procured via an electronic request for proposal; six offers were received. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity (N0001922D0048).