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Others

Obayashi Corporation Launches Special Website for GREEN×EXPO 2027

Others

Z6 OWJ2 JV Awarded Contract for Zone 6 of Large-Scale Jakarta's Sewage Treatment Plant

IR

Main Questions and Answers at the Small Meetings in 2025 (PDF: 213 KB)

Sustainability

Four Projects Receive ICONIC AWARDS 2025, Germany

Others

Acquisition of Shares of GCON Inc. (US Construction Company) and Its Affiliated Companies

IR

Notice Concerning the Status of Acquisition of Own Shares (PDF: 208 KB)

Sustainability

Obayashi Corporate Report 2025 is now available

Others

Publication of the public relations magazine Obayashi Quarterly No. 64, "Map": Deciphering MOTOORI Norinaga's Imaginary Town in the Hashihara Castle Town Map

Company Profile

Obayashi Corporate Profile is now available

Others

Two Event Stage Videos Added to Special Website for "OBAYASHI VISION SHOWCASE 2025," the Obayashi Group's Comprehensive Exhibition

IR

Notice Concerning the Status of Acquisition of Own Shares (PDF: 196 KB)

Sustainability

YOKOHAMA SYMPHOSTAGE Wins "Awards of Merit" at the IES Illumination Awards

Sustainability

Posted Statement on Modern Slavery and Human Trafficking (FY2024) (PDF: 434.5 KB)

IR

FY2025 1st Quarter : Summary of the Financial Results Briefing Conference (April 1, 2025 to June 30, 2025) (PDF: 143 KB)

IR

FY2025 1st Quarter : Presentation on Financial Results With Notes (April 1, 2025 to June 30, 2025) (PDF: 891 KB)

IR

Notice Concerning Determination of Matters Related to the Acquisition of Own Shares (PDF: 195 KB)

IR

Notice of Cancellation of Treasury Shares (PDF: 178 KB)

IR

FY2025 1st Quarter : Presentation on Financial Results (April 1, 2025 to June 30, 2025) (PDF: 895 KB)

IR

FY2025 1st Quarter : Supplementary Data on Financial Results (April 1, 2025 to June 30, 2025) (PDF: 293 KB)

IR

FY2025 1st Quarter : Financial Results (April 1, 2025 to June 30, 2025) (PDF: 3,054 KB)

Others

STAGE EVENT ARCHIVE Added to Special Website for "OBAYASHI VISION SHOWCASE 2025," the Obayashi Group's Comprehensive Exhibition

Sustainability

Obayashi Corporation Wins Gold and Silver at the "A' Design Award," One of the World's Largest International Design Competitions

IR

Consolidated Financial Statements (Year Ended March 31, 2025) with Independent Auditor's Report (PDF: 1,030 KB)

IR

Non-consolidated Financial Statements (Year Ended March 31, 2025) with Independent Auditor's Report (PDF: 602 KB)

Technologies

Open Lab 3, a Multipurpose Laboratory Construction Project Phase I, Has Been Completed, Reusing used Structural Components from a Demolished Building

IR

Notice of Voting Results of the 121st Ordinary General Meeting of Shareholders (PDF: 123 KB)

IR

Corporate Governance Report 2025 (PDF: 494 KB)

IR

Notice of Resolutions of the 121st Ordinary General Meeting of Shareholders (PDF: 90 KB)

IR

Notice Concerning the Status and the Completion of Acquisition of Own Shares (PDF: 193 KB)

Sustainability

Two Obayashi Corporation Representatives Honored Aotearoa Hydrogen Awards 2025 in New Zealand

IR

Disclosure of Engagement with Shareholders and Investors (April 2024 - March 2025) (PDF: 378 KB)

IR

Notice Concerning the Status of Acquisition of Own Shares (PDF: 189 KB)

IR

OBAYASHI CORPORATION's Opinion on the ISS Report (PDF: 456 KB)

Technologies

Obayashi Corporation Builds ORCISM™ Integrated Management and Control System to Support Crane Operation Safety and Productivity

IR

Notice of Convocation of the 121st Ordinary General Meeting of Shareholders (PDF: 762 KB)

Company Profile

The Obayashi Group's Comprehensive Exhibition "OBAYASHI VISION SHOWCASE 2025" Is Being Held in Tokyo and Osaka

IR

FY2024 4th Quarter : Summary of the Financial Results Briefing Conference (April 1, 2024 to March 31, 2025) (PDF: 171 KB)

Others

Spam Alert: Notice Regarding Spoof E-mails Using the Names of Current and Former Presidents of Obayashi Corporation [Repost]

IR

FY2024 4th Quarter : Presentation on Financial Results With Notes (April 1, 2024 to March 31, 2025) (PDF: 1,581 KB)

IR

Notice Concerning Dividends from Surplus (PDF: 96 KB)

IR

Financial Data Book (FY ended March 31, 2021 - FY ended March 31, 2025) (PDF: 322 KB)

IR

FY2024 4th Quarter : Presentation on Financial Results (April 1, 2024 to March 31, 2025) (PDF: 1,771 KB)

IR

FY2024 4th Quarter : Supplementary Data on Financial Results (April 1, 2024 to March 31, 2025) (PDF: 1,482 KB)

IR

[Summary] Consolidated Financial Results for the Fiscal Year Ended March 31, 2025 (Under Japanese GAAP) (PDF: 4,648 KB)

IR

Notice Concerning the Status of Acquisition of Own Shares (PDF: 88 KB)

Others

Spam Alert: Notice regarding spoof e-mails using the name of former president of Obayashi Corporation

IR

Notice Concerning Revision to Financial Results Forecasts (PDF: 100 KB)

IR

Notice Concerning the Status of Acquisition of Own Shares (PDF: 189 KB)

Technologies

GEN-VIR™, a Construction Simulator Developed by Obayashi Corporation and Toyota Motor Corporation's Frontier Research Center, Uses Posture Reproduction and Muscle Fatigue Analysis to Improve Tasks and Reduce Worker Burden

IR

Notice Concerning Succession of the Villa Site Management Business for the Obayashi Izu-Atagawa Villa Resort Sites to Angel Forest Resorts Co., Ltd. through a Company Split (PDF: 158 KB)

Others

Planning approval on 60 Gracechurch Street, in City of London

Technologies

The MEP content was added on Obayashi Corporation's BIM rules, 'Smart BIM Standard'

IR

ESG Briefing for Institutional Investors and Securities Analysts Held

IR

Notice Regarding Change of Representative Directors and Officers (PDF: 198 KB)

IR

Notice Concerning the Status of Acquisition of Own Shares (PDF: 143 KB)

Sustainability

Bird Paradise (Singapore) Receives 3rd OCAJI Project Award

IR

FY2024 3rd Quarter : Summary of the Financial Results Briefing Conference (April 1, 2024 to December 31, 2024) (PDF: 155 KB)

Sustainability

Nature-Related Information Disclosure (Disclosure Based on TNFD Recommendations)

IR

FY2024 3rd Quarter : Presentation on Financial Results With Notes (April 1, 2024 to December 31, 2024) (PDF: 1,076 KB)

IR

Notice Concerning Establishment of Subsidiary (Sub-subsidiary) by Consolidated Subsidiary of Obayashi Corporation (PDF: 139 KB)

IR

Notice Concerning Determination of Matters Related to Acquisition of Own Shares (PDF: 140 KB)

IR

Notice Concerning Revision to Full-Year Financial Results Forecasts (PDF: 97 KB)

IR

FY2024 3rd Quarter : Presentation on Financial Results (April 1, 2024 to December 31, 2024) (PDF: 1,049 KB)

IR

FY2024 3rd Quarter : Supplementary Data on Financial Results (April 1, 2024 to December 31, 2024) (PDF: 202 KB)

IR

FY2024 3rd Quarter : Financial Results (April 1, 2024 to December 31, 2024) (PDF: 555 KB)

IR

Obayashi Receives High Ratings from Three Major IR Website Evaluation Organizations

Others

Successfully Demonstrated Marine Transportation of Green Hydrogen Produced in New Zealand and its Utilization in Fiji

Sustainability

"Well-Being Enhancement Programs" was added on Obayashi diversity and inclusion website

IR

West Japan Robotics Center, Expo 2025 site and other facility tours held for institutional investors and analysts