Diamond Project Co., LTD.

Diamond Project Co., LTD., a for-profit limited liability company headquartered in Yokohama, Japan, provides facilities maintenance, repair, and preventive maintenance services to U.S. Department of Defense installations across the Asia-Pacific region as a prime contractor on unrestricted, full-and-open competitive awards with no SBA set-aside certifications. The vendor operates exclusively as a prime — with zero subcontract footprint — and maintains no indefinite-delivery vehicle holdings as a contracting party.

Diamond Project's customer concentration is heavily Navy-centric and skewed toward a single Air Force vehicle. The top five funding agencies account for 92% of recent awards, with Navy Installations Command leading on award count (30 awards, $11.1 million combined potential value), followed by Naval Sea Systems Command (12 awards, $1.9 million), Naval Facilities Engineering Command (9 awards, $2.1 million), Pacific Air Forces (4 awards, $35.3 million), and the Navy Bureau of Medicine and Surgery (3 awards, $1.4 million). The two rankings diverge sharply: Pacific Air Forces dominates potential value through its $35.04 million blanket purchase agreement for kitchen hood and exhaust system inspections at Yokota Air Base and Tama Service Annex, awarded February 29, 2024, and running through September 30, 2028. The Navy's portfolio, by contrast, is anchored to five single-award indefinite-delivery contracts held by Diamond Project that range from $315,755 to $2,898,137 in ceiling value, all maturing between 2029 and 2031. Recent representative work includes a $199,413 Navy Installations Command delivery order for preventive maintenance of water facilities circulation systems at Commander Fleet Activities Yokosuka (April 2026 through April 2027), a $167,075 Pacific Region delivery order for kitchen hood and exhaust system inspections and cleaning at Camp Zama, Sagamihara Family Housing Area, and Sagami General Depot (July 2026 through June 2027), a $129,858 Naval Sea Systems Command delivery order for port security barrier system preventive maintenance at Truman Bay, Yokosuka (May 2026 through June 2027), and a $35.04 million PAF BPA for kitchen hood and exhaust system work at two Air Force installations through 2028.

The vendor's five primary parent vehicles are all single-award Navy indefinite-delivery contracts: N4008420D0808 (9 task orders, $347 thousand combined value), N4008420D0404 (8 task orders, $1.1 million), N4008421D0406 (8 task orders, $492 thousand), N4008420D0400 (7 task orders, $450 thousand), and Blanket Purchase Agreement FA520924A0009 with Pacific Air Forces (3 task orders, $287 thousand). Activity has remained flat to modestly declining — six awards in 2022 to nine in 2026 — with only five awards (combined potential value $577 thousand) facing ultimate completion inside the next twenty-four months, indicating minimal near-term recompete pressure. The vendor's capability footprint concentrates on preventive maintenance, repair, and inspection services spanning port security barrier systems, water and petroleum-oil-and-lubricant storage systems, underground storage tanks, pump test bench systems, kitchen equipment and hood-exhaust systems, medical gas systems, and general facilities support at Navy and Air Force installations in Japan. All work is performed in Japan at named locations including Commander Fleet Activities Yokosuka, Yokota Air Base, Tama Service Annex, Camp Zama, Sagamihara Family Housing Area, and Sagami General Depot. The vendor's NAICS profile reflects facilities-maintenance specialization, with 31 awards under Commercial and Industrial Machinery and Equipment Repair and Maintenance, 21 under Facilities Support Services, and 6 under Other Services to Buildings and Dwellings.