Two Six Labs LLC, doing business as Two Six Technologies, Arlington, Virginia, has been awarded a $9,962,647 modification (P00016) to cost-plus-fixed-fee contract HR001121C0106 for additional in-scope work performed under a Defense Advanced Research Projects Agency (DARPA) research project. The modification brings the total cumulative face value of the contract to $21,355,718 from $11,393,071. Work will be performed in Arlington, Virginia, with an estimated completion date of September 2025. Fiscal 2023 research and development funds in the amount of $3,500,000; and fiscal 2024 research and development funds in the amount of $1,333,091, are being obligated at the time of award. DARPA, Arlington, Virginia, is the contracting activity.