Overview
- Legal name
- SEKI CONSTRUCTION CO.,LTD
- Registered location
- ADACHI-KU, TOKYO, JPN
- Website
- Company website ↗
- Primary NAICS
- 236118 — Residential Remodelers
- Latest award activity
- Apr 23, 2025
Read company summary
SEKI CONSTRUCTION CO.,LTD is associated with UEI K5LCQHE6MZP8 and CAGE JB134 in public federal records. AcornBids currently links 2 prime awards totaling $125.6K in obligations to this entity. Its largest recorded federal customer by obligations is Department of State. Its recorded federal awards include work classified as Roofing Contractors; Plumbing, Heating, and Air-Conditioning Contractors. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 236118 (Residential Remodelers). Its public SAM.gov registration lists ADACHI-KU, TOKYO, JPN.
At a glance
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Aug 20, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- SEKI CONSTRUCTION CO.,LTD
- UEI
- K5LCQHE6MZP8
- CAGE
- JB134
- Registered address
- 4-50-11,HOKIMA, ADACHI-KU, TOKYO, 1210064, JPN
- Registration status
- Active
- Primary NAICS
- 236118 — Residential Remodelers
- SAM activation
- Mar 12, 2026
- Initial registration
- Mar 17, 2023
- Entity start
- Dec 12, 1985
- SAM updated
- Mar 12, 2026
- Registration expires
- Mar 11, 2027
- Fiscal year end
- Jul 31
- Place of incorporation
- JPN
Federal award analysis
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| 19JA8025P0797ROOF INSULATION INSTALLATION SERVICES | Department of State | $74.2K | Apr 23, 2025 | Apr 29, 2026 |
| 19JA8024P0429WASTE & SEWER MAIN PIPING REPAIR SERVICES | Department of State | $51.4K | Feb 1, 2024 | Aug 2, 2024 |
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Mar 12, 2026 |
| Source loaded | Sep 2, 2026 |
| Initial registration | Mar 17, 2023 |
| Entity start | Dec 12, 1985 |
| Industry | Reported size status |
|---|---|
| 236118 — Residential Remodelers | Not reported |
| 236220 — Commercial and Institutional Building Construction | Not reported |
| 237110 — Water and Sewer Line and Related Structures Construction | Not reported |
| 237130 — Power and Communication Line and Related Structures Construction | Not reported |
| 237310 — Highway, Street, and Bridge Construction | Not reported |
| 237990 — Other Heavy and Civil Engineering Construction | Not reported |
| 238110 — Poured Concrete Foundation and Structure Contractors | Not reported |
| 238140 — Masonry Contractors | Not reported |
| 238150 — Glass and Glazing Contractors | Not reported |
| 238170 — Siding Contractors | Not reported |
| 238190 — Other Foundation, Structure, and Building Exterior Contractors | Not reported |
| 238220 — Plumbing, Heating, and Air-Conditioning Contractors | Not reported |
| 238290 — Other Building Equipment Contractors | Not reported |
| 238310 — Drywall and Insulation Contractors | Not reported |
| 238320 — Painting and Wall Covering Contractors | Not reported |
| 238340 — Tile and Terrazzo Contractors | Not reported |
| 238350 — Finish Carpentry Contractors | Not reported |
| 238390 — Other Building Finishing Contractors | Not reported |
| 327215 — Glass Product Manufacturing Made of Purchased Glass | Not reported |
| 337110 — Wood Kitchen Cabinet and Countertop Manufacturing | Not reported |
| 337212 — Custom Architectural Woodwork and Millwork Manufacturing | Not reported |
| 339950 — Sign Manufacturing | Not reported |
| 444180 — Other Building Material Dealers | Not reported |
| 531210 — Offices of Real Estate Agents and Brokers | Not reported |
| 532412 — Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing | Not reported |
| 541310 — Architectural Services | Not reported |
| 541350 — Building Inspection Services | Not reported |
| 541410 — Interior Design Services | Not reported |
| 541490 — Other Specialized Design Services | Not reported |
| 541990 — All Other Professional, Scientific, and Technical Services | Not reported |
| 561622 — Locksmiths | Not reported |
| 561710 — Exterminating and Pest Control Services | Not reported |
| 561730 — Landscaping Services | Not reported |
| 561790 — Other Services to Buildings and Dwellings | Not reported |
| 562119 — Other Waste Collection | Not reported |
| 562211 — Hazardous Waste Treatment and Disposal | Not reported |
| 562219 — Other Nonhazardous Waste Treatment and Disposal | Not reported |
| 562991 — Septic Tank and Related Services | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| HIROSHI KOBAYASHI | Government business | Contact method not published | SAM registration | Not available |
| HIROSHI KOBAYASHI | Electronic business | Contact method not published | SAM registration | Not available |
Registered industries
- 236118 — Residential Remodelers
- 236220 — Commercial and Institutional Building Construction
- 237110 — Water and Sewer Line and Related Structures Construction
- 237130 — Power and Communication Line and Related Structures Construction
- 237310 — Highway, Street, and Bridge Construction
- 237990 — Other Heavy and Civil Engineering Construction
- 238110 — Poured Concrete Foundation and Structure Contractors
- 238140 — Masonry Contractors
- 238150 — Glass and Glazing Contractors
- 238170 — Siding Contractors
- 238190 — Other Foundation, Structure, and Building Exterior Contractors
- 238220 — Plumbing, Heating, and Air-Conditioning Contractors
- 238290 — Other Building Equipment Contractors
- 238310 — Drywall and Insulation Contractors
- 238320 — Painting and Wall Covering Contractors
- 238340 — Tile and Terrazzo Contractors
- 238350 — Finish Carpentry Contractors
- 238390 — Other Building Finishing Contractors
- 327215 — Glass Product Manufacturing Made of Purchased Glass
- 337110 — Wood Kitchen Cabinet and Countertop Manufacturing
- 337212 — Custom Architectural Woodwork and Millwork Manufacturing
- 339950 — Sign Manufacturing
- 444180 — Other Building Material Dealers
- 531210 — Offices of Real Estate Agents and Brokers
- 532412 — Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing
- 541310 — Architectural Services
- 541350 — Building Inspection Services
- 541410 — Interior Design Services
- 541490 — Other Specialized Design Services
- 541990 — All Other Professional, Scientific, and Technical Services
- 561622 — Locksmiths
- 561710 — Exterminating and Pest Control Services
- 561730 — Landscaping Services
- 561790 — Other Services to Buildings and Dwellings
- 562119 — Other Waste Collection
- 562211 — Hazardous Waste Treatment and Disposal
- 562219 — Other Nonhazardous Waste Treatment and Disposal
- 562991 — Septic Tank and Related Services
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
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Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
No official subaward rows are loaded, so Acorn does not claim known teaming relationships.
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