西松建設株式会社
西松建設株式会社 (corporate number 8010401021454) received 10 Japanese central-government awards totaling ¥61,267,100,000 over the past 60 months. Largest buyer by award value: Ministry of the Environment (10 awards).
Corporate number (法人番号): 8010401021454 · Rolling 60 months (2021-10-16 – 2026-10-16)
Counts and totals are exact over this window — every matching row, not a sample.
When Hashike's monthly refresh from Japan's Procurement Portal (調達ポータル) adds a new award result for this company (corporate number 8010401021454), you get an email.
Contract method
Counts of award results with a recorded contract method in the window.
- Open bidding — best value10
Awards by calendar year
Grouped by the calendar year of the award date. The first and last years shown cover only part of the window.
| Calendar year | Award results | Total awarded |
|---|---|---|
| 2022 | 4 | ¥5,420,100,000 |
| 2023 | 2 | ¥1,918,000,000 |
| 2024 | 2 | ¥4,759,000,000 |
| 2025 | 1 | ¥9,430,000,000 |
| 2026 | 1 | ¥39,740,000,000 |
By ministry or agency
| Buyer | Awards | Total awarded |
|---|---|---|
| Ministry of the Environment | 10 | ¥61,267,100,000 |
Recent awards
| Procurement | Buyer | Awarded | Value |
|---|---|---|---|
| 令和８～１０年度大熊町特定帰還居住区域被災建物等解体撤去等及び除染等工事（その４） | Ministry of the Environment | 2026-05-21 | ¥39,740,000,000 |
| 令和７年度浪江町特定帰還居住区域被災建物等解体撤去等及び除染等工事（その３） | Ministry of the Environment | 2025-09-30 | ¥9,430,000,000 |
| 令和６年度双葉町特定帰還居住区域被災建物等解体撤去等及び除染等工事 （その２） | Ministry of the Environment | 2024-08-06 | ¥3,850,000,000 |
| 令和５年度中間貯蔵飯舘小宮中屋敷地区除去土壌等輸送工事（その２） | Ministry of the Environment | 2024-01-31 | ¥909,000,000 |
| 令和５年度双葉町特定帰還居住区域被災建物等解体撤去等及び除染等工事（その１） | Ministry of the Environment | 2023-10-30 | ¥1,026,000,000 |
| 令和５年度中間貯蔵飯舘長泥地区除去土壌等輸送工事 | Ministry of the Environment | 2023-04-18 | ¥892,000,000 |
| 令和４年度川俣町仮置場復旧等工事 | Ministry of the Environment | 2022-09-14 | ¥919,100,000 |
| 令和４年度中間貯蔵施設区域内家屋等解体工事(その２) | Ministry of the Environment | 2022-08-30 | ¥2,593,000,000 |
| 令和４年度相双地区除去土壌等輸送工事 | Ministry of the Environment | 2022-08-30 | ¥1,328,000,000 |
| 令和４年度焼却灰・除去土壌等輸送工事 | Ministry of the Environment | 2022-05-20 | ¥580,000,000 |
Company profile (gBizINFO)
- Location
- 東京都港区虎ノ門１丁目１７番１号
- Founded
- 1937-09-20
- Employees
- 2,706
- Unified bidding qualification grades
- A, A
- Business
- 建設工事の請負、企画、設計およびコンサルティング
Source: gBizINFO (METI). A different source from the award records above.
Central-government award results published on Japan's Procurement Portal (調達ポータル) only. Prefectural and municipal contracts are not included, and neither is the Ministry of Defense's central equipment procurement, which ATLA (Acquisition, Technology and Logistics Agency) publishes separately. Amounts are award prices (the winning bid) in yen and are never combined with the US federal figures elsewhere on this site. Company and procurement names are shown as published, in Japanese, and are not translated.