株式会社コウケン
株式会社コウケン (corporate number 9050001044306) received 6 Japanese central-government awards totaling ¥12,630,000 over the past 60 months. Largest buyer by award value: Ministry of Justice (2 awards).
Corporate number (法人番号): 9050001044306 · 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 9050001044306), you get an email.
Contract method
Counts of award results with a recorded contract method in the window.
- Open bidding — lowest price5
- Negotiated — open quotation, small value1
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 |
|---|---|---|
| 2024 | 1 | ¥770,000 |
| 2025 | 3 | ¥5,820,000 |
| 2026 | 2 | ¥6,040,000 |
By ministry or agency
| Buyer | Awards | Total awarded |
|---|---|---|
| Ministry of Justice | 2 | ¥6,040,000 |
| Ministry of Land, Infrastructure, Transport and Tourism | 3 | ¥4,540,000 |
| Ministry of the Environment | 1 | ¥2,050,000 |
Recent awards
| Procurement | Buyer | Awarded | Value |
|---|---|---|---|
| 水戸地方法務局常陸太田支局空気調和機改修工事 | Ministry of Justice | 2026-07-30 | ¥5,000,000 |
| 栃木刑務所大食堂空調機修繕整備 | Ministry of Justice | 2026-06-29 | ¥1,040,000 |
| 庁舎空調設備更新（岩見沢河川事務所） | Ministry of Land, Infrastructure, Transport and Tourism | 2025-09-03 | ¥2,620,000 |
| Ｒ７村上国道維持出張所照明器具ＬＥＤ取替作業 | Ministry of Land, Infrastructure, Transport and Tourism | 2025-07-30 | ¥1,150,000 |
| 令和７年度種差海岸インフォメーションセンター駐車場照明修繕業務 | Ministry of the Environment | 2025-07-15 | ¥2,050,000 |
| 令和６年度九州技術事務所研修所宿泊棟壁紙張替 | Ministry of Land, Infrastructure, Transport and Tourism | 2024-12-16 | ¥770,000 |
Company profile (gBizINFO)
- Location
- 茨城県那珂市菅谷２３５６番地１丸金テナント
- Founded
- 2018-04-16
- Unified bidding qualification grades
- D, D
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.