Yamaki Co., LTD.

Yamaki Co., LTD., a Japan-based for-profit waste management services provider headquartered in Mikajiri, Kumagaya, Saitama, operates exclusively as a prime contractor (100% of awards) delivering integrated solid waste management, industrial waste collection and disposal, and environmental support services to U.S. Department of Defense installations throughout Japan. The company competes on an unrestricted basis with no set-aside designations across its entire federal footprint, holding two principal indefinite delivery contracts with Navy Installations Command valued at $42.96 million through September 2033 and a newer $24 million Pacific Air Forces vehicle through September 2030, plus a $7.5 million Navy Pacific Region contract through May 2029.

Yamaki's customer concentration is heavily Navy-centric. The top five funding agencies account for 95% of recent awards, anchored by Naval Sea Systems Command (1,910 awards, $663.3 million combined potential value), Navy Installations Command (166 awards, $151.2 million), Pacific Air Forces (40 awards, $102.9 million), Naval Facilities Engineering Command (76 awards, $85.1 million), and the Navy's Bureau of Medicine and Surgery (26 awards, $3.1 million). The Naval Sea Systems Command dominates both count and dollar share—task orders issued against that customer support waste management operations at specific naval vessels (guided-missile destroyers, aircraft carriers, logistics ships) and shore facilities including Commander Fleet Activities Yokosuka and Naval Air Facility Atsugi. Pacific Air Forces, despite fewer awards, represents nearly equal potential value to Navy Installations Command, reflecting larger task order sizes for consolidated facility operations.

The vendor's capability framing is concrete: collection, transportation, segregation, disposal, and recycling of general, medical, and industrial waste streams; dumpster delivery and asset management; and non-recurring off-base incineration services. Representative work includes a $4.22 million delivery order from Navy Installations Command (March 2026) for recurring integrated solid waste management at Commander Fleet Activities Yokosuka through March 2027; a $1.39 million delivery order from Navy Installations Command (November 2025) for waste services at Naval Air Facility Atsugi through November 2026; a $2.04 million delivery order from Pacific Air Forces (October 2025) for operations and maintenance waste management services at military family housing and hospital facilities through September 2026; and a $111,671 delivery order from Naval Sea Systems Command (January 2026) for integrated waste collection and disposal (sandblast sand management) at a shipyard repair facility through September 2026.

Yamaki's parent vehicle position is anchored on a single $432.2 million IDC (N4008418D0414) that accounts for 1,141 task orders—the vast majority of activity. A second vehicle (N4008423D0409) carries 366 task orders at $3 million combined value. Three additional IDCs contribute smaller volumes. The $24 million Pacific Air Forces contract awarded October 1, 2025, represents the most recent IDV and generated four firm fixed-price delivery orders in October totaling approximately $3.13 million for hospital, housing, education, and O&M waste services, with completion dates through September or November 2026. The $42.96 million Navy Installations Command IDC (awarded March 11, 2025, ultimate completion September 30, 2033) covers integrated solid waste management for general and medical waste collection, transportation, and disposal in the Kanto Plain region; two delivery orders under this vehicle had issued as of the source data, with combined potential value exceeding $4.2 million.

Activity shows consistent annual volume between 162 and 172 awards per year from 2022 through 2024, declining slightly to 144 awards in 2025 and 30 awards year-to-date in 2026. Combined potential value across all 2,329 awards sits at $1.05 billion with $198.6 million obligated (19% execution rate). The recompete cliff is modest: 10 awards with ultimate completion within the next twenty-four months carry combined potential value of $9 million, representing renewal opportunity rather than cliff-edge risk for a vendor holding large, multi-year IDCs.

Yamaki has held active federal contractor registration with the System for Award Management since December 2003, demonstrating sustained capability in a highly specialized niche—Japanese waste management operations supporting U.S. military installations. The company competes in open market (NAICS 562211 Solid Waste Collection and 562219 Other Waste Collection dominate the category concentration, backed by PSC codes for trash/garbage collection and facilities operations support). Yamaki operates exclusively in Japan and serves no U.S. domestic agencies; its entire mission is environmental logistics for forward-deployed and permanently stationed U.S. military assets in the Pacific theater.