Contractor profile
NIKKAI CORPORATION
Active registration
UEIMENXWTPNH9N5
CAGE codeJS983
Primary NAICS236210
LocationYOKOSUKA, 238-0011
Federal obligations$43M
Prime awards27
Active awards10
Latest award actionJun 2, 2026
Federal award activity
Public award recordTop federal customers
- Department of Defense27 awards$43M
NAICS award mix
- 23622018 awards$41M
- 8114124 awards$1M
- 5612103 awards$682,669
- 8113101 awards$61,153
- 5413801 awards$13,294
PSC award mix
- Z2NZ2 awards$12M
- Z2FC1 awards$7M
- Z2JZ3 awards$6M
- Z2NE2 awards$5M
- Z2ED4 awards$4M
- Z2GZ1 awards$3M
- Z1AA6 awards$2M
- Z2PZ1 awards$1M
Contract vehicles
- N4008423D00815 awards$24M
- N4008419D00775 awards$13M
- N4008425D00056 awards$4M
- N4008423D04143 awards$1M
- N4008425D04122 awards$682,669
Potential recompetes
- Department of Defense$1M
- Department of Defense$1M
- Department of Defense$244,281
- Department of Defense$35,662
- Department of Defense$61,153
- Department of Defense$12M
- Department of Defense$170,166
- Department of Defense$130,031
- Department of Defense$483,811
- Department of Defense$1M
Prime award history
| Award | Agency / office | Category | Value | Dates |
|---|---|---|---|---|
| N6264926PB074REPAIR EXISTING SHAFT LATHE, X31 FOR SRF-JRMC | Department of DefenseNAVSUP FLT LOG CTR YOKOSUKA | NAICS 811310PSC J034 | $61,153 | Jun 15, 2026 – Sep 30, 2026 |
| N4008424F4346YSK-PW-SA-COMM, REPLACE MAIN WATER PIPE NEAR MAIN GATE | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 236220PSC Z2NE | $5M | Apr 29, 2024 – Jul 31, 2026 |
| N4008426P0807CONDUCT ULTRASONIC TESTING FOR LAND CRANE (LC47 AND LC48) RAILS AT BERTH 12 IN THE U.S. COMMANDER FLEET ACTIVITIES, YOKOSUKA, JAPAN | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 541380PSC Z1PZ | $13,294 | Jun 1, 2026 – Aug 15, 2026 |
| N4008426F4277YSK-3336 REPLACE CORRODED COVERED WALKWAY AT THE COMMANDER FLEET ACTIVITIES YOKOSUKA, JAPAN | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 236220PSC Y1PZ | $244,281 | May 15, 2026 – Dec 31, 2026 |
| N4008426F4235YSK-DD6 REPLACE 200A COMPRESSED AIR LINE AT THE U.S. FLEET ACTIVITIES YOKOSUKA, JAPAN | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 236220PSC Y1NZ | $1M | Apr 20, 2026 – Apr 10, 2028 |
| N4008426F4175YSK-1938 OVERHAUL AIR-COMPRESSOR UNITS 2 AND 3 AND REWIND MOTOR | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 236220PSC Z2ED | $1M | Mar 13, 2026 – May 7, 2027 |
| N4008426F4161OVERHAUL AND REPLACE PARTS OF THE CHILLER UNIT AT YSK-A47, EPRO.NO. 1923406 | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 561210PSC Z1AA | $483,811 | Mar 4, 2026 – Feb 22, 2028 |
| N4008425D0412MAINTENANCE AND REPAIRS FOR THE PUMP TEST BENCH SYSTEMS AT U.S. COMMANDER FLEET ACTIVITIES YOKOSUKA (CFAY), JAPAN BY COMBINATION CONTRACT OF RECURRING WORK AND NON-RECURRING WORK ITEMS | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 561210PSC Z1JB | $0 | Aug 1, 2025 – Not stated |
| N4008423D0081INDEFINITE DELIVERY/INDEFINITE QUANTITY (IDIQ) DESIGN-BUILD (DB)/DESIGN-BID-BUILD (DBB) MULTIPLE AWARD CONSTRUCTION CONTRACT (MACC) FOR THE KANTO OPERATIONAL AREA, JAPAN. (BASE AWARD) | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 236220PSC Z2JZ | $0 | Jun 30, 2023 – Not stated |
| N4008425D0005KANTO PLAINS MINI MACC | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 236220PSC Z2JZ | $0 | Mar 4, 2025 – Not stated |
| N4008425F0236EXERCISE 2ND OPTN | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 811412PSC Z1AA | $1M | Sep 12, 2025 – Sep 11, 2026 |
| N4008423D0414RECURRING, THIRD OPTION PERIOD | Department of DefenseNAVFACSYSCOM FAR EAST | NAICS 811412PSC Z1AA | $0 | Sep 11, 2023 – Not stated |
Award links and obligation totals come from USAspending.gov public records.
Industries and classifications
NAICS 236210Industrial Building ConstructionNAICS 236220Commercial and Institutional Building ConstructionNAICS 237990Other Heavy and Civil Engineering ConstructionNAICS 238110Poured Concrete Foundation and Structure ContractorsNAICS 238160Roofing ContractorsNAICS 238210Electrical Contractors and Other Wiring Installation ContractorsNAICS 238220Plumbing, Heating, and Air-Conditioning ContractorsNAICS 238290Other Building Equipment ContractorsNAICS 238330Flooring ContractorsNAICS 333415Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment ManufacturingNAICS 541380Testing Laboratories and ServicesNAICS 561210Facilities Support ServicesNAICS 561730Landscaping ServicesNAICS 561790Other Services to Buildings and DwellingsNAICS 811310Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
Public points of contact
KOSUKE SAKAMOTOGovernment business
MIKI SAKAMOTOAlternate government business
KOSUKE SAKAMOTOElectronic business
MIKI SAKAMOTOAlternate electronic business
Names and titles are reproduced from the public registration. FedRoster does not guess or enrich personal contact details.