Ryuseki Corporation
Urasoe, Okinawa
- UEI
- F64MZW4Z71P9
- CAGE
- J7310
- Primary NAICS
- 457210 Fuel Dealers
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Tax Exempt)
- Other NAICS codes in SAM.gov
- Corporate family
-
-
- RLAPKQADSK76
- XWVKEDX3BLY6
-
- SAM.gov registration date
- Physical address
- 2-chōme-2-3 Irijima, Urasoe, Okinawa 901-2123, Japan
- Website
- ryuseki.co.jp
- Employees
- 1-10
- Estimated annual revenue
- $0-$1M
- Industry
-
- Energy
- Energy Equipment & Services
- Gas Utilities
- Oil & Gas
- SIC code
- 51 Wholesale Trade – Nondurable Goods
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $12,890,601 |
| FY2025 | $17,601,526 |
| FY2024 | $17,419,944 |
| FY2023 | $15,872,013 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Defense Logistics Agency | $12,817,821 | |
| 2 | Air Force | $72,780 |
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Gasoline, automotive | Energy (DLA) | $11,961 | |
| Fuel oil, burner | Energy (DLA) | $82,750 | |
| Fuel oil, burner | Energy (DLA) | $2,363 | |
| Fuel oil, burner | Energy (DLA) | $460 | |
| Fuel oil, burner | Energy (DLA) | $165,500 |
Latest 5 listed here. See the rest on GovTribe.
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About the company
Ryuseki Corporation, a Japan-based for-profit entity headquartered in Okinawa, is the sole-source prime contractor delivering petroleum products and fuel distribution services to U.S. Department of Defense installations across Japan. The vendor operates exclusively in full-and-open competition without set-aside designations, holding a single-award Indefinite Delivery Contract valued at $92.8 million (through June 30, 2029) with the Defense Logistics Agency Energy and issuing delivery orders directly to the Air Force.
Ryuseki's federal footprint is heavily concentrated in energy logistics. The company supplies approximately 2.8 million gallons of diverse petroleum products—including aviation turbine fuel, automotive gasoline, burner fuel oil, marine gas oil, and liquefied petroleum gas—to major U.S. military installations in Japan including Yokota Air Base, Kadena Air Base, Camp Courtney, Camp Kinser, and subordinate Navy and Army facilities throughout the Indo-Pacific region. Recent representative work includes delivery orders for burner fuel oil ($351.8 million ceiling, April 14, 2026), automotive gasoline ($208.1 million, March 20, 2026), and fuel oil ($187.5 million, March 19, 2026). The $92.8 million parent IDC was awarded September 13, 2024, as a requirements-type vehicle with continuous solicitation authority through May 1, 2029, structured with fixed pricing and economic price adjustments based on Platts Japan escalators, adjusted on the 1st and 3rd Monday of each month.
Customer concentration is absolute. Defense Logistics Agency Energy accounts for 5,680 awards (100% coverage) and $595.8 million in combined potential value across the portfolio. The Department of the Air Force Pacific Air Forces has placed 18 orders ($7.7 million combined value), and the Army Installation Management Command Pacific Region holds one award ($45 thousand). The vendor's recent award activity shows declining volume—450 awards in 2024, 384 in 2025, and 242 through mid-2026—reflecting the mature, established nature of the single-award vehicle rather than growth trajectory. Only three awards face completion within the next twenty-four months (combined potential value $122 thousand), indicating minimal near-term recompete exposure under this contract structure.
Ryuseki operates primarily through two for-profit subsidiaries—Ryuseki Energy, K.K. and Ryuseki Corporation—serving as an integrated fuel-distribution provider with no subcontract footprint. The vendor's capability portfolio is narrowly specialized: NAICS codes concentrate on Petroleum Refineries (3,020 awards) and Petroleum and Petroleum Products Merchant Wholesalers (2,660 awards); PSC codes show 5,277 awards for Fuel Oils (PSC 6615) and 417 for Liquid Propellants and Fuels, Petroleum Base. All work is performed in Japan with no domestic U.S. operations reflected in the federal award record. Pricing discipline and logistics infrastructure supporting forward-deployed military operations in the Indo-Pacific anchors Ryuseki's sole-source competitive position in this established, requirements-driven procurement.
Quick answers
Is Ryuseki Corporation registered in SAM.gov?
Yes. Ryuseki Corporation's SAM.gov registration is active through October 8, 2027.
How much has Ryuseki Corporation received in federal contracts?
Federal contracts obligated $17,601,526 to Ryuseki Corporation in fiscal year 2025 and $63,784,085 in fiscal years 2023 through 2027.
How does Ryuseki Corporation rank among federal contractors?
Ryuseki Corporation ranked #6 in PSC V125, #11 in NAICS 48833 and #19 in PSC 9140 in FY2025.
What is Ryuseki Corporation's most recent federal award?
Ryuseki Corporation's most recent federal contract award is Gasoline, automotive (SPE60526FHTP5), from Energy (DLA), on July 23, 2026.
On GovTribe
See Ryuseki Corporation's full federal record
- Federal contract awards
- IDV awards
- Funding analysis by agency, NAICS and set-aside
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