Tieron / Targeting
Annual report 2026-06-24
Companies › Japanese listed company

第一建設工業株式会社 (DAIICHI KENSETSU CORPORATION)

Tokyo Stock Exchange 1799, Construction. Supply-chain directory entry built from public EDINET filings, including relationships the company disclosed in its own annual securities report.

COMPANY NAME (JP)
第一建設工業株式会社
TICKER
TSE 1799
EDINET CODE
E00250
CORPORATE NUMBER
4110001002922
INDUSTRY
Construction (建設業)
HEAD OFFICE
新潟市中央区八千代一丁目４番３４号
DISCLOSED FOOTPRINT
5 sites · 0 subsidiaries

Disclosed major customers

Counterparties DAIICHI KENSETSU CORPORATION named in its own annual securities report. A third-party company named here has DAIICHI KENSETSU CORPORATION in its supply base.

東日本旅客鉄道株式会社72.3% of revenue
“売上高総額に対する割合が100分の10以上の相手先別の売上高及びその割合は、次のとおりであります。建設事業東日本旅客鉄道株式会社 | 43,353,420 | 72.3”
Annual securities report (有価証券報告書), filed 2026-06-24 — EDINET S100YILN
オリックス不動産株式会社
“当事業年度発注者工事件名 | オリックス不動産株式会社（仮称）蒲田計画 新築工事”
Annual securities report (有価証券報告書), filed 2026-06-24 — EDINET S100YILN
独立行政法人高齢・障害・求職者雇用支援機構
“当事業年度発注者工事件名 | 独立行政法人高齢・障害・求職者雇用支援機構福島職業能力開発促進センター教室棟・実習場建替その他工事（第１期）”
Annual securities report (有価証券報告書), filed 2026-06-24 — EDINET S100YILN
伊藤忠都市開発株式会社
“当事業年度発注者工事件名 | 伊藤忠都市開発株式会社（仮称）世田谷区等々力ＰＪ新築工事”
Annual securities report (有価証券報告書), filed 2026-06-24 — EDINET S100YILN
株式会社日和田ショッピングモール
“次期繰越工事のうち主なものは、次のとおりであります。発注者工事件名完成予定株式会社日和田ショッピングモールイオンモール郡山新築工事 建築・設備工事”
Annual securities report (有価証券報告書), filed 2026-06-24 — EDINET S100YILN
株式会社ジェイアール東日本都市開発
“次期繰越工事のうち主なものは、次のとおりであります。発注者工事件名完成予定 | 株式会社ジェイアール東日本都市開発ＪＲ船橋市場町社宅跡地開発計画Ａ街区（賃貸住宅・ＳＣ）新築工事”
Annual securities report (有価証券報告書), filed 2026-06-24 — EDINET S100YILN
The filing addresses human rights.

Sector risk context: supply-chain risk for Construction & EPC in Japan.

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Sources: EDINET code list (Financial Services Agency) and the company’s own annual securities report (有価証券報告書) retrieved via EDINET. Disclosed relationships are quoted from the filing and carry its EDINET accession number; extraction is automated and conservative — anything the filing does not state is left out. Tieron does not certify, audit or endorse the company, and this page contains no Tieron risk assessment. Report an issue with this page — corrections referencing the accession number shown above are fastest to verify.
第一建設工業株式会社の取引先・主要顧客 — DAIICHI KENSETSU CORPORATION suppliers & customers · Tieron