CACI Inc. Federal, Chantilly, Virginia, has been awarded a not-to-exceed $11,530,702 modification (P00010) to previously awarded contract HQ0423-15-F-5001 for comptroller mission systems support for the Office of the Under Secretary of Defense (Comptroller).  This modification exercises Option Year 4 with a period of performance of Feb. 16, 2019, through Feb. 15, 2020. The modification brings the total cumulative face value of the contract to $51,604,376 from $40,073,674. Work will be performed at the Pentagon and in remote locations within the National Capital Region with an expected completion date of Feb. 15, 2020. Fiscal 2019 operations and maintenance Defense-wide funds in the amount of $11,530,702 are being obligated at time of award. The Defense Finance and Accounting Service, Columbus, Ohio, is the contracting activity.