Indefinite Delivery Contract N4008425D0088

The U.S. Navy Installations Command awarded a multiple-award Indefinite Delivery/Indefinite Quantity contract valued at $1.5 billion with an ultimate completion date of September 9, 2033, to Black Construction / Mace International Joint Venture, a Guam-registered partnership. This Design-Build/Design-Bid-Build Multiple Award Construction Contract provides general building construction services at the U.S. Navy Support Facility in Diego Garcia, British Indian Ocean Territory, encompassing repair, renovation, alteration, construction, demolition, and design services. The contract was competitively awarded without set-aside designation and enables task order issuance ranging from $150,000 to $50 million for infrastructure projects supporting critical U.S. Navy logistics and operational capabilities in the strategically important Indian Ocean region. The contractor demonstrates specialized expertise in complex construction and infrastructure maintenance for military installations in remote locations, with a proven track record executing electrical system upgrades, building renovations, road and parking apron repairs, and specialized remediation work.

The initial task order, issued September 10, 2025, represents a $6.08 million firm fixed-price delivery order for repairs to Food Service Storage Building F-702 at Diego Garcia, with completion targeted for August 30, 2027. This seed project demonstrates the contract's application to essential facility maintenance supporting military personnel operations. The underlying solicitation, posted in October 2023, sought multiple award IDIQ contracts with an eight-year performance period to provide comprehensive construction services, with priority consideration extended to joint ventures composed of at least 60 percent U.S. and 20 percent United Kingdom firms per bilateral U.S.-U.K. agreement. The contract structure supports flexible procurement of diverse infrastructure projects necessary to sustain and modernize critical support facilities at this vital defense location.