関東化工建設株式会社
Saitama, Japan
Active| Registration number | T9030001072795 |
|---|---|
| Type | Corporation |
| Registered name | 関東化工建設株式会社 |
| Address | 埼玉県熊谷市銀座４丁目１１番６号 4-11-6 Ginza, Kumagaya-shi, Saitama 360-0032, JAPAN |
| Corporate number | 9030001072795 |
| Corporate number assigned on | 2015-10-05 |
| Invoice registered on | 2023-10-01 |
| Record last updated | 2024-12-06 |
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) | カントウカコウケンセツ |
| Reading (romaji) | Kantokakokensetsu |
| English name (unofficial) | Kanto Kako Kensetsu |
| Postal code | 360-0032 |
Source: NTA Corporate Number Publication Site, refreshed daily.
Timeline — registry changes
| 2024-07-01 | Head-office address changed (Japan) |
|---|
Source: daily change files of the NTA Corporate Number Publication Site. Before 2023-08-16 only the latest change is known. All company events →
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 1 programme (1 lines, sheet years 2025–2025; total ¥728.2M).
| 2025 FY2024 | 道路事業（直轄・修繕等） ¥728.2M （国土交通省） 修繕、点検、調査、設計 等 |
|---|
Contract details (excerpt): 維持工事 ¥728.2M・指名競争契約（総合評価） · bidders 2
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 →
Licenses, registrations & certifications (gBizINFO)
| Construction business license Civil engineering works・Scaffolding & earthworks・Steel structur… ／ Special contractor・Saitama Governor license No. 066128 （Saitama） |
Source: gBizINFO (METI) notifications & certifications dataset, refreshed monthly. Some licenses (e.g. construction 建設業許可, electrician registrations) are not part of the gBizINFO dataset.
Verify in official sources
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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/t9030001072795) — Source: National Tax Agency corporate-number and qualified-invoice registries. Retrieved 2026-09-22.
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