関建設工業株式会社
Tokyo, Japan
Active| Registration number | T4010701005152 |
|---|---|
| Type | Corporation |
| Registered name | 関建設工業株式会社 |
| Address | 東京都品川区大崎３丁目７番１４号 3-7-14 Osaki, Shinagawa-ku, Tokyo 141-0032, JAPAN |
| Corporate number | 4010701005152 |
| Corporate number assigned on | 2015-10-05 |
| Invoice registered on | 2023-10-01 |
The invoice registration date is when the qualified-invoice-issuer registration (T-number) took effect — it is not the date the company was founded, and it resets only if the business re-registers after revocation or expiry.
Corporate registry record
| Entity type | Kabushiki Kaisha (stock company) |
|---|---|
| Reading (furigana) | セキケンセツコウギョウ |
| Reading (romaji) | Sekikensetsukogyo |
| English name (unofficial) | Seki Kensetsu Kogyo K.K. |
| Postal code | 183-0004 |
Source: NTA Corporate Number Publication Site, refreshed daily.
Government contract awards (GEPS)
No public national-government (GEPS) award records for this company in the open data (FY2013 to date).
出典：調達ポータル（https://www.p-portal.go.jp/）
Payments from national budget programmes (行政事業レビュー)
Ministry review sheets report this company as a payee of 2 programmes (3 lines, sheet years 2024–2025; total ¥5.2M).
| 2025 FY2024 | 遺骨伝達等事業 ¥2.0M （厚生労働省） 千鳥ヶ淵戦没者墓苑納骨経費 |
|---|---|
| 2024 FY2023 | 自然公園等事業費等 ¥1.7M （環境省） 工事の実施及び工事に係る調査・設計、国民公園の維持管理運営 |
| 2024 FY2023 | 遺骨伝達等事業 ¥1.5M （厚生労働省） 千鳥ヶ淵戦没者墓苑者墓苑納骨経費 |
Contract details (excerpt): 千鳥ヶ淵戦没者墓苑旧納骨室除湿剤交換作業等 ¥614,900・随意契約（少額） · bidders 1 ／ 千鳥ヶ淵戦没者墓苑旧納骨室蓋開閉作業 ¥389,400・随意契約（少額） · bidders 1 ／ 千鳥ヶ淵戦没者墓苑旧納骨室蓋開閉作業 ¥389,400・随意契約（少額） · bidders 1 ／ 千鳥ヶ淵戦没者墓苑旧納骨室蓋開閉作業 ¥367,400・随意契約（少額） · bidders 1 ／ 千鳥ヶ淵戦没者墓苑六角堂蓋開閉作業 ¥247,500・随意契約（少額） · bidders 1 ／ 墓苑内階段手摺設置工事 ¥710,000・随意契約（少額）
Source: 行政事業レビュー見える化サイト (Cabinet Secretariat, PDL 1.0) — edited extract by LoreaTec. A sheet year describes the previous fiscal year’s spending. Programme database →
Verify in official sources
Doing due diligence on this supplier?
Verifying the invoice number is step one. Our guide covers the full checklist: corporate registry, licenses, and import/export standing.
How to cite this page
Data via LoreaTec BizSearch (https://bizsearch.loreatec.jp/t4010701005152) — Source: National Tax Agency corporate-number and qualified-invoice registries. Retrieved 2026-09-21.
Reusing this page, or answering with it? Paste this line. Training and AI answers are allowed — attribution is the only condition. AI content licence