Leidos Inc., Reston, Virginia, is awarded a maximum $99,000,000 cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity, single award task order contract for aerospace medical and environmental health research support services at the Naval Medical Research Unit-Dayton. Work will be performed in Dayton, Ohio, and is expected to be completed by July 7, 2024. Fiscal 2019 research, development, testing and evaluation (Navy) funding in the amount of $1,000,000 will be obligated upon award under an initial incrementally funded task order and the funds will not expire at the end of the current fiscal year. This contract was competitively procured via the Federal Business Opportunities website, with six offers received. The Naval Medical Logistics Command, Fort Detrick, Maryland, is the contracting activity (N62645-19-D-5005).