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Overview

Services

C.E.Management Integrated Laboratory Co.Ltd

DK Group provides comprehensive testing, survey, and analysis services for civil engineering and construction projects across Japan, covering soil/geological investigations, non-destructive testing of concrete and road infrastructure, and environmental analysis. The company operates a one-stop service model—supporting clients from pre-construction through maintenance phases—leveraging over 1,000 types of tests and a nationwide network of branches, franchise locations, and specialized testing centers. Additional business segments include civil engineering and ground improvement works (including soil contamination remediation and structural reinforcement) and software development for civil/surveying design (e.g., 3D design system 'LandForms') and environmental simulation.

Market Cap

¥5.13B

US$32.7M

¥2.48B

US$15.8M

Stock¥361▲+0.28%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

2.6

LTM EV/EBIT

3.4

LTM PER

10.4

LTM PBR

1.0

Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-44.2%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

MC → EV Bridge

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Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

90%

EquityD/E 0.11xDebt

Liquidity vs Debt 5Y (¥B)▲ Net Cash

CashInv. Sec.Debt

Shareholders

Top 10 hold 49.3%

as of 2026-06-30 · Source: Annual Securities Report

Feel Co., Ltd.

21.76%

Yuji SHIMODAIRA

11.16%

C.E.Management Integrated Laboratory Co.Ltd Employee Stock Ownership Association

4.39%

Minako SHIMODAIRA

3.13%

Erika SHIMODAIRA

2.00%

Marina SHIMODAIRA

2.00%

Matsumoto Doken Co., Ltd.

1.55%

SBI SECURITIES Co., Ltd.

1.13%

Katsuaki TANAKA

1.12%

Eiichiro TOIKE

1.05%

Management

13 officers

Yuji SHIMODAIRA

Representative Director, President

Jan 1983 Joined Doboku Zairyo Shiken-sho Co., Ltd. Oct 1985 Established Chuo Shizai Kensa-sho Co., Ltd. (current company) Representative Director, President (current)

1955-03-28

Erika SHIMODAIRA

Senior Managing Director, Head of Tokyo Administration Division

Apr 2012 Iwakura High School, Meisho Gakuen Educational Corporation Aug 2018 Joined the Company Jan 2021 General Manager, Marketing Department Mar 2022 Director, General Manager, Marketing Department Mar 2023 Director, Head of Administration Division Apr 2024 Managing Director, Head of Administration Division Apr 2025 Senior Managing Director, Head of Tokyo Administration Division (current)

1987-11-01

Yuki MATSUYAMA

Managing Director, Head of Environment Division and Head of Social Infrastructure Division

Apr 2000 Joined the Company Mar 2012 Director, General Manager, Non-Destructive Testing Department Apr 2013 Director, Head of Technology Division No. 2 Apr 2017 Director, Head of Technology Division No. 1 Apr 2024 Managing Director, Head of Environment Division Apr 2025 Managing Director, Head of Environment Division and Head of Social Infrastructure Division (current)

1977-10-28

Tatsuhiko KASAHARA

Managing Director, Head of Urban Development and Disaster Prevention Division

Dec 2004 Joined Tanaka Sangyo Co., Ltd. Oct 2008 Joined the Company Apr 2018 Executive Officer, General Manager, Consulting Department Mar 2023 Director, General Manager, Consulting Department Apr 2024 Managing Director, Head of Urban Development and Disaster Prevention Division (current)

1973-09-17

Kazuya YAGISAWA

Director, Head of Sales Headquarters

Apr 2000 Joined the Company Mar 2012 Director, General Manager, Testing Department Apr 2013 Director, Head of Technology Division No. 1 Apr 2017 Director, Head of Technology Division No. 2 Apr 2024 Director, Head of Social Infrastructure Division Apr 2025 Director, Head of Sales Headquarters (current)

1977-03-05

Masahiro NAKAJIMA

Director, Head of Strategic IP Division

Apr 2002 Joined Gunma Home Co., Ltd. Aug 2005 Joined the Company Jan 2018 Executive Officer, General Manager, Partnership Business Division Jan 2019 Executive Officer, Head of Strategic IP Division Apr 2021 Director, Advanced Knowledge Research Institute Co., Ltd. (current) Mar 2022 Director, Head of Strategic IP Division (current)

1980-02-25

Kenichi NAKAZAWA

Director, Head of Nagano Administration Division

Sep 2002 Joined MK Seiko Co., Ltd. Apr 2008 Joined Kyowa Corporation Co., Ltd. Jun 2012 Joined Misuzu Holdings Co., Ltd. Dec 2019 Joined the Company Jan 2021 General Manager, Accounting Department, Nagano Head Office Administration Division Apr 2022 Executive Officer, Head of Nagano Head Office Administration Division Jan 2023 Executive Officer, General Manager, Accounting Department, Administration Division Apr 2025 Director, Head of Nagano Administration Division and General Manager, Accounting Department (current)

1973-02-02

Toshiya OKAMOTO

Director

Jul 1985 Joined TDC Software Engineering Co., Ltd. Jan 1997 Joined Business Brain Ota Showa Co., Ltd. Oct 1997 Joined Chuo Audit Corporation Mar 2000 Registered as Certified Public Accountant Sep 2000 Yuba & Okamoto CPA Office (current) Mar 2015 Outside Director of the Company (current) Jun 2017 Outside Director, Kyowa Corporation Co., Ltd. (current)

1960-08-24

Nozomi IIJIMA

Director

Apr 1995 Joined Japan Weather Association Apr 2001 Member, Kan no Kurashi Kaigi (Ministry of the Environment) Jun 2006 Member, Transport Policy Council (Ministry of Land, Infrastructure, Transport and Tourism) Mar 2007 Member, Saitama Prefecture Forest Council Jun 2008 Director, Japan Transport Promotion Foundation (current) Aug 2010 Member, Saitama Prefecture Environment Council Aug 2018 Member, Kawagoe City Urban Planning Council (current) Mar 2019 Outside Director of the Company (current)

1969-03-28

Satoru NAKAZAWA

Director

Apr 1973 Joined Nagano Bank Apr 2005 Manager, Kamiyamada-Togura Branch, Nagano Bank Oct 2013 Joined Misuzu Seiko Co., Ltd. Oct 2019 Representative Director, President, Misuzu Seiko Co., Ltd. Mar 2022 Outside Director of the Company (current)

1955-01-02

Hisashi HORIUCHI

Corporate Auditor

Apr 1981 Joined Nagano Bank Sep 2008 Joined the Company Apr 2011 Manager, Kanto Branch Apr 2014 General Manager, Management Audit Office Mar 2023 Corporate Auditor of the Company (current)

1957-12-24

Masaharu MOGI

Corporate Auditor

Nov 1986 Opened Mogi Certified Social Insurance and Labor Consultant Office (current) Mar 2014 Outside Corporate Auditor of the Company (current)

1951-09-27

Yukari MARUTA

Corporate Auditor

Oct 2006 Registered as Attorney-at-Law Sep 2010 Joined Sakura NAGANO Law Office (current) Mar 2014 Outside Corporate Auditor of the Company (current) Feb 2023 Outside Director, HIOKI E.E. CORPORATION

1968-12-28

Large Shareholding Reports

Feel Co., Ltd.

2026-06-01

20.84%→21.73%

Annual report (as of 2026-06-30): 21.76%

Disclosures

No disclosures

Primary Source Filings

EDINET

2026-08-10

Semi-Annual Securities Report

Period: Jan 2026 – Dec 2026

C.E.Management Integrated Laboratory Co.Ltd

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C.E.Management Integrated Laboratory Co.Ltd

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