The U.S. Department of State's Bureau of Overseas Buildings Operations (OBO) is seeking qualified U.S. firms for an Indefinite Delivery/Indefinite Quantity (IDIQ) Capital Projects Construction Manager Program, specifically for Design Build Capital Construction Projects. The program aims to award 5-7 multiple IDIQ contracts in FY2026, with an anticipated program ceiling of $4.5B–$7.5B, to provide design and construction services at U.S. Embassy and Consulate posts worldwide. Key requirements include compliance with the Omnibus Act Section 402 U.S. person criteria, possession of a Secret Facility Clearance, and adherence to strict security protocols. Interested parties must submit their responses to this Sources Sought notice by December 5, 2025, and can contact Dudley Greene at GreeneDL@state.gov for further information.