Tieron / Targeting
Annual report 2026-06-23
Companies › Japanese listed company

ダイダン株式会社 (DAI-DAN CO.,LTD.)

Tokyo Stock Exchange 1980, Construction. Supply-chain directory entry built from public EDINET filings, including relationships the company disclosed in its own annual securities report.

COMPANY NAME (JP)
ダイダン株式会社
TICKER
TSE 1980
EDINET CODE
E00194
CORPORATE NUMBER
6120001045084
INDUSTRY
Construction (建設業)
HEAD OFFICE
大阪市西区江戸堀１丁目９番２５号
DISCLOSED FOOTPRINT
5 sites · 6 subsidiaries

Disclosed major customers

Counterparties DAI-DAN CO.,LTD. named in its own annual securities report. A third-party company named here has DAI-DAN CO.,LTD. in its supply base.

(株)大林組13.5% of revenue
“第96期 ㈱大林組 33,462百万円 13.5％”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
Rapidus(株)10.1% of revenue
“Rapidus㈱ 25,125百万円 10.1％”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
DSO National Laboratories
“DSO National Laboratories国防科学機構生物安全研究所MCF棟空調衛生・電気工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
Obayashi-Santarli Joint Venture
“Obayashi-Santarli Joint Venture(Bedok Hospital)Eastern General Hospital Electrical Package A電気工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
CHINA CONSTRUCTION (SP) DEVELOPMENT CO P L
“CHINA CONSTRUCTION (SP) DEVELOPMENT CO P Lシンガポール総合病院 電気工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
日揮(株)
“日揮㈱中外製薬後期開発および初期生産用合成原薬製造棟空調衛生工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
デジタル東京2特定目的会社
“デジタル東京２特定目的会社NRT12データセンター実装 空調衛生工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
清水建設(株)
“清水建設㈱BLUE FRONT SHIBAURA TOWER S 空調衛生工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
戸田建設(株)
“戸田建設㈱ESR南港OS1データセンター（FO-1） 空調衛生工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
SMFLみらいパートナーズ(株)
“ＳＭＦＬみらいパートナーズ㈱2025年日本国際博覧会 熱供給業務 空調衛生工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
イビデン(株)
“イビデン㈱イビデン 大野事業場 セル８棟 空調衛生・電気工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
大成建設(株)
“大成建設㈱中外製薬株式会社 宇都宮工場 無菌注射剤製造棟（UTA）空調衛生工事”
Annual securities report (有価証券報告書), filed 2026-06-23 — EDINET S100YGXY
The filing states a human-rights policy and describes human-rights due diligence: “サステナビリティ委員会の下に、気候変動、人的資本、人権問題、従業員の健康と安全をはじめとしたサステナビリティを巡る課題への対応を目的に、テーマ（会議体）ごとの推進部門を設置し、TCFD提言に沿った情報開示の拡充、時間外労働の削減、人材育成、人権デュー・ディリジェンスなどに積極的に取り組んでいます。”

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.