Kotsukensetsu Co., LTD.

Kotsukensetsu Co., LTD., a Japanese for-profit corporation headquartered in Tokyo, performs railroad sidetrack roadbed maintenance and repair services for the U.S. Department of Defense and Defense Logistics Agency at overseas military installations, exclusively as a prime contractor competing on full-and-open, unrestricted solicitations with no small business set-asides.

Kotsukensetsu's federal work is narrowly concentrated in rail infrastructure sustainment at U.S. Government Sidetracks No. 342 and 343 at the Tsurumi Fuel Terminal in Kanagawa, Japan. The scope spans replacing switch parts, ties, and joint plates; removing and restoring asphalt; cleaning flange ways; oiling switching points; weed control; and emergency repairs to maintain railroad operational condition. The firm holds a Supervisor of Railway Construction/Maintenance Work certification issued by Japan Freight Railway Company and operates in contaminated soil environments requiring environmental management protocols to address lead, arsenic, diesel and waste oil, fluorine, and mercury above disposal criteria limits.

Customer concentration is dominated by the Defense Logistics Agency Energy, which accounts for five awards valued at $480 thousand combined potential value across recent fiscal years. The Department of the Navy follows with five awards across Installations Command (two awards, $372 thousand) and Naval Supply Systems Command (two awards, $234 thousand), with an additional sole award to the Department of the Navy valued at $161 thousand. All four customer agencies account for 100% of the vendor's award footprint, reflecting deep specialization in a single sidetrack facility.

Recent awards include a $204.8 thousand purchase order from Navy Installations Command for FY26 maintenance at Tsurumi (awarded June 4, 2026, completing May 31, 2027), a $167 thousand FY25 award from Navy Installations Command (April 1, 2025 through May 31, 2026), and a $160.6 thousand FY24 award from the Department of the Navy (April 1, 2024 through March 31, 2025). The vendor has executed one award per fiscal year since 2022, with combined obligated dollars of $1.2 million against combined potential value of $1.2 million. One award valued at $205 thousand reaches ultimate completion within the next twenty-four months, presenting recompete opportunity in the FY27 cycle.