Solipsys Corp., Fulton, Maryland, is awarded an $18,490,294 indefinite-delivery/indefinite-quantity contract (N6523622D8015) with provisions for firm-fixed-price and cost-plus-fixed-fee task/delivery orders. The contract is for delivery of software products and services published by Solipsys Corp., as well as software updates/maintenance, software engineering/ testing services, and cybersecurity support. The contract includes a single, five-year ordering period and a two-year optional ordering period. The option period, if exercised, would bring the cumulative value of this contract to an estimated $27,871,555.  Fiscal 2022 working capital (Navy) funds in the amount of $25,000 will be obligated at the time of award. Funds will not expire at the end of the current fiscal year. Work will be performed in Fulton, Maryland, and is expected to be completed by April 2028. If the optional ordering period is exercised, work could continue until April 2030. The contract was procured using other than full and open competition in accordance with 10 U.S. Code § 2304(c)(1) and Defense Federal Acquisition Regulation 6.302-1 — only one responsible source and no other supplies or services will satisfy agency requirements. Naval Information Warfare Center Atlantic, Charleston, South Carolina, is the contracting activity.