株式会社西原環境
株式会社西原環境 (corporate number 5010401023437) received 5 Japanese central-government awards totaling ¥113,677,528 over the past 60 months. Largest buyer by award value: Ministry of Defense (1 award).
Corporate number (法人番号): 5010401023437 · 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 5010401023437), you get an email.
Contract method
Counts of award results with a recorded contract method in the window.
- Open bidding — lowest price5
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 | 1 | ¥8,107,068 |
| 2023 | 2 | ¥87,985,960 |
| 2024 | 1 | ¥8,085,550 |
| 2026 | 1 | ¥9,498,950 |
By ministry or agency
| Buyer | Awards | Total awarded |
|---|---|---|
| Ministry of Defense | 1 | ¥79,900,000 |
| Ministry of the Environment | 4 | ¥33,777,528 |
Recent awards
| Procurement | Buyer | Awarded | Value |
|---|---|---|---|
| 令和８年度皇居外苑浄化施設凝集剤他購入 | Ministry of the Environment | 2026-04-07 | ¥9,498,950 |
| 令和６年度皇居外苑浄化施設凝集剤他購入 | Ministry of the Environment | 2024-04-15 | ¥8,085,550 |
| 中水処理設備補修役務 | Ministry of Defense | 2023-10-20 | ¥79,900,000 |
| 令和５年度皇居外苑浄化施設凝集剤他購入 | Ministry of the Environment | 2023-04-05 | ¥8,085,960 |
| 令和４年度皇居外苑浄化施設凝集剤他購入 | Ministry of the Environment | 2022-04-06 | ¥8,107,068 |
Company profile (gBizINFO)
- Location
- 東京都港区海岸３丁目２０番２０号
- Founded
- 1964-02-04
- Employees
- 640
- Unified bidding qualification grades
- A, A
- Business
- 水事業（自治体向け・産業向け）
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.