Sasebo Marine And Port Services Co., LTD.

Sasebo Marine And Port Services Co., LTD. Maritime Sales Division operates as a Japan-based for-profit prime contractor providing high-powered tugboat services (2,600 horsepower or greater) and port logistics support to the U.S. Navy in the Sasebo region, competing in full-and-open (non-set-aside) federal procurements with no SBA certifications. The division is a subsidiary of Sasebo Heavy Industries Co., LTD., a parent organization also headquartered in Japan.

The vendor's federal footprint is entirely concentrated in Navy port operations at Sasebo. Sasebo Marine delivers tugboat operations, vessel maneuvering, harbor operations, berthing assistance, and maritime logistics exclusively through firm fixed-price delivery orders issued under single-award indefinite delivery contracts (IDCs). Recent representative work includes a $169,315 delivery order from Navy Installations Command (November 2025), a $192,001 delivery order for tugboat services (June 2025), and a $49,688 delivery order from U.S. Pacific Fleet Forces (January 2026). All work is performed in Japan, specifically the Sasebo area.

Customer concentration is heavily skewed toward Navy Installations Command. Of 856 total prime awards (100% of the portfolio), Navy Installations Command placed 348 awards carrying $14.9 million in combined potential value—65% of all dollars. Naval Sea Systems Command anchors the second-highest dollar tier with only 7 awards but $4 million in combined value, reflecting the parent IDC ceiling. Military Sealift Command placed 228 awards worth $1.7 million. The remainder split across Department of the Navy (160 awards, $1.2 million), U.S. Pacific Fleet Forces (58 awards, $520 thousand), and Naval Supply Systems Command (54 awards, $394 thousand), with coverage of 99% across these top five.

The vendor operates under three primary parent IDCs. Indefinite Delivery Contract N6824618D0001 carries 354 task orders ($4.3 million combined potential value); N6824613D0001 carries 298 task orders ($2.2 million); and N6824623D0006, the most recent, carries 143 task orders ($2.5 million ceiling) and runs through May 31, 2028. The N6824623D0006 IDC, awarded June 1, 2023 by Naval Sea Systems Command, is the active vehicle and supports the high delivery order velocity observed in 2025–2026. Individual delivery orders under these vehicles typically range from $1,100 to $192,000 for periods of one to four weeks of tugboat support.

Activity has been heavy and sustained. The vendor received 56 awards in 2022, 72 in 2023, and 73 in 2024, then slowed to 21 in 2025 and 5 through March 2026—likely reflecting the rolling completion of work under aging parent vehicles N6824618D0001 and N6824613D0001. Combined potential value across all 856 awards is $22.7 million, with $9.5 million (42%) obligated to date. The vendor has no subcontract presence; all activity is prime.

Category concentration is absolute: 820 of 856 awards (96%) fall under NAICS 488500 (Other Support Activities for Water Transportation), with 848 awards (99%) carrying PSC code for transportation/vessel towing. The business model is monolithic—tugboat services at a single location for a single customer family (Navy commands at Sasebo). The vendor operates as a single-location, single-service maritime support provider with no diversification, no teaming, and no visible exposure to U.S. domestic Navy installations or non-Navy agencies.