Black Construction/Mace International JV, Harmon, Guam (N40084-21-D-0079); ECC Diego Garcia LLC, Burlingame, California (N40084-21-D-0080); JSK Diego Services LLC, Fort Worth, Texas (N40084-21-D-0081); MVL Bromgrove JV LLC, Houston, Texas (N40084-21-D-0082); and PARSONS-COLAS UKP JV, Centreville, Virginia (N40084-21-D-0083), are awarded a combined $99,500,000 firm-fixed-price, indefinite-delivery/indefinite quantity modification to their respective previously awarded contracts. This modification provides for additional capacity for commercial and institutional building construction at U.S. Naval Support Facility Diego Garcia. This award brings the total combined cumulative value of all five contracts to $448,000,000. Work will be performed in Diego Garcia, British Indian Ocean Territory, and will be completed by September 2026. No funds will be obligated at time of award. Funds will be obligated on individual task orders as they are awarded. The Naval Facilities Engineering Systems Command, Far East, Yokosuka, Japan, is the contracting activity.