BAE Systems Technology Solutions & Services Inc., Rockville, Maryland (N66001-19-D-3407); Booz Allen Hamilton, McLean, Virginia (N66001-19-D-3408); ICF Inc., LLC, Reston, Virginia (N66001-19-D-3409); Leidos Inc., Reston, Virginia (N66001-19-D-3410); Peraton Technology Services Inc., Herndon, Virginia (N66001-19-D-3411); Parsons Government Services Inc., Pasadena, California (N66001-19-D-3412); Science Applications International Corp., Reston, Virginia (N66001-19-D-3413); Scientific Research Corp., Atlanta, Georgia (N66001-19-D-3414); and Peraton Technology Services Inc., Chantilly, Virginia (N66001-19-D-3415), are each awarded a modification to exercise Option Two of a previously awarded indefinite-delivery/indefinite-quantity, cost-plus-fixed-fee contract to support Naval Information Warfare Center (NIWC) Pacific with the architecture, engineering, functionality, interface and interoperability of Cyberspace Operations systems, services and capabilities at the tactical, operational and strategic levels. The maximum dollar value for all nine contracts combined is $1,856,048,552. BAE Systems Technology Solutions & Services Inc. is awarded $205,601,340; this two-year option extends the five-year contract to seven years, increasing the total value to $677,769,136. Booz Allen Hamilton Inc. is awarded $204,053,976; this two-year option extends the five-year contract to seven years, increasing the total value to $672,034,025. ICF Inc. LLC is awarded $240,164,326; this two-year option extends the five-year contract to seven years, increasing the total value to $802,045,896. Leidos, Inc. is awarded $223,713,581; this two-year option extends the five-year contract to seven years, increasing the total value to $691,584,396. Peraton Technology Services Inc. is awarded $205,301,482; this two-year option extends the five-year contract to seven years, increasing the total value to $704,295,666. Parsons Government Services Inc. is awarded $211,984,975; this two-year option extends the five-year contract to seven years, increasing the total value to $710,979,159. Science Applications International Corporation is awarded $170,488,367; this two-year option extends the five-year contract to seven years, increasing the total value to $569,177,650. Scientific Research Corp. is awarded $171,923,497; this two-year option extends the five-year contract to seven years, increasing the total value to $577,918,498. Peraton Technology Services Inc. is awarded $222,817,008; this two-year option extends the five-year contract to seven years, increasing the total value to $739,941,511. Work will be performed at San Diego, California (100%). The period of performance for this option is May 2024 to May 2026. No funds will be obligated at the time of award. Funds will be obligated as task orders are issued using research, development, test and evaluation; other procurement, Navy, operations and maintenance, and other funding. Other funding includes the potential for defense working capital funds; and Foreign Military Sales funding. This contract was competitively procured via Request for Proposal (N66001-18-R-001) which was published on the Federal Business Opportunities website and the Naval Information Warfare Systems Command e-Commerce central website. 18 offers were received and nine were selected for award. NIWC Pacific, San Diego, California, is the contracting activity.