Mitomo Co., LTD.

Mitomo Co., LTD., a Japanese for-profit organization headquartered in Yokohama, delivers facilities engineering, infrastructure maintenance, and construction services to U.S. military installations in Japan as a prime contractor, competing exclusively in full-and-open solicitations with no socioeconomic certifications or set-asides. The company has been registered in the System for Award Management since 2006 and operates entirely as a prime contractor with no subcontract footprint in its federal work.

Mitomo's capability portfolio centers on electrical systems design, construction, and maintenance; HVAC equipment installation and repair; emergency generator support; water and wastewater infrastructure services; and general facilities construction and renovation. Recent representative work includes a $19.1 million SCADA modernization project at facility YSK-1805 (Navy Installations Command, definitive contract awarded June 2025); a $5.6 million synchronous condenser and control panel replacement at Commander Fleet Activities Yokosuka (Navy Installations Command, definitive contract December 2022); a $3.98 million maintenance and repair contract for dual-fuel engines and co-generation equipment at Camp Zama (DoD Pacific Region, purchase order through January 2029); and a $2.3 million uninterruptible power supply system replacement at Building 3154 at Commander Fleet Activities Yokosuka (Navy Installations Command, definitive contract April 2023).

Customer concentration is extreme: the Navy Installations Command dominates with 371 awards carrying $567.5 million in combined potential value—57% of Mitomo's entire portfolio—while the Marine Corps holds 19 awards valued at $253.6 million. Naval Facilities Engineering Command and Naval Sea Systems Command contribute 78 and 141 awards respectively, for $118.4 million and $29.1 million. Together, these four Navy/Marine Corps commands represent 88% of award count and 98% of total potential value. The vendor's work is geographically concentrated at U.S. military installations throughout Japan, particularly at Commander Fleet Activities Okinawa, Naval Air Facility Atsugi, Commander Fleet Activities Yokosuka, Camp Zama, Kadena Air Base, and facilities across the Kanto Plain region.

Mitomo holds multiple significant indefinite delivery vehicles. The Navy Installations Command awarded a $81.0 million single-award IDIQ for preventive maintenance and service orders on electrical systems across the Kanto Plain (ultimate completion September 2028); a $34.3 million single-award IDIQ for base operating support services at Commander Fleet Activities Okinawa (through September 2029); a $7.7 million single-award IDC for high-quality water and feed-water facility maintenance at Commander Fleet Activities Yokosuka (through December 2030); and a $99.0 million multiple-award Design-Bid-Build MACC for Naval Air Facility Atsugi facility repair and construction (through September 2033). The Marine Corps awarded a $250 million multiple-award indefinite delivery contract for small-magnitude design-bid-build construction at Marine Corps Base Camp Butler and Commander Fleet Activities Okinawa (through June 2029). Naval Facilities Engineering Command holds a $30 million multiple-award IDC for maintenance services at installations in Japan (through March 2029). Naval Sea Systems Command awarded a $5.0 million single-award Blanket Purchase Agreement for equipment and container purchase, lease, and rental services (through January 2031). Across these vehicles, task orders range from small discrete maintenance tasks to multi-million-dollar infrastructure projects, with pricing uniformly firm-fixed and no set-asides applied.

Activity has grown modestly: 28 awards in 2022, rising to 41 in 2025, with 27 awards recorded in 2026 year-to-date. Within the next twenty-four months, twenty-four awards carrying combined potential value of $31.3 million reach ultimate completion and face recompete exposure. Over the full award history in the source data (back to 2002), combined potential value across 726 prime awards totals $993.4 million, with $184 million obligated to date (19% of potential).

Mitomo competes entirely on an open, full-and-open basis without holding any small business set-asides, minority ownership designations, or women-owned or veteran-owned certifications. The vendor's sustainable competitive position reflects both its operational base in-theater—enabling rapid response to maintenance emergencies and facility requirements at forward-deployed installations—and its specialized technical capability in electrical, HVAC, and infrastructure systems critical to U.S. military readiness in the Asia-Pacific region.