Overview
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UNICON Holdings Co.,Ltd.

UNICON Holdings is a pure holding company for a regional coalition-type general contractor group, connecting leading local construction companies across prefectural boundaries in the Tohoku region of Japan. Its consolidated subsidiaries—Sannwa Construction, Ono Nakamura, Nankaibu Construction Corporation, and Nansoken—engage in civil engineering and building construction primarily for public-sector clients, covering infrastructure maintenance, disaster recovery, snow removal, environmental protection, and private construction. The group leverages its certified 'Enterprise Group' status under Japan's Construction Business Act to share technical personnel and expertise across subsidiaries, enabling it to pursue large-scale and high-complexity projects that individual companies could not undertake alone.

Market Cap
¥8.87B
US$56.5M
EV
¥10.6B
US$67.5M
Stock¥896▲+0.45%
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
6.1
x
LTM EV/EBIT
7.0
x
LTM PER
9.0
x
LTM PBR
2.1
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-43.2%pt
100
Oct 24, 25 – Oct 23, 26StockTOPIX
MC → EV Bridge
8.87BUS$56.5MMarket Cap3.38BUS$21.6M+ Debt1.67BUS$10.6M− Cash0.00BUS$0.00M− Inv. Sec.10.6BUS$67.5MEV
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Performance & Balance
Revenue 5Y (¥B)
16.1US$103M'23/615.6US$99.6M'24/617.6US$112M'25/618.8US$120M'26/6
EBITDA 5Y (¥B)
1.46US$9.29M'24/61.98US$12.6M'25/61.73US$11.1M'26/6
Net Income 5Y (¥B)
0.99US$6.29M'23/60.73US$4.63M'24/61.12US$7.12M'25/60.98US$6.28M'26/6
Capital Structure
55%
45%
EquityD/E 0.81xDebt
Liquidity vs Debt 5Y (¥B)▼ Net Debt
CashInv. Sec.Debt
'23/63.59US$22.9M1.90US$12.1M'24/62.43US$15.5M4.34US$27.7M'25/61.67US$10.6M3.38US$21.6M'26/6
Shareholders
Top 10 hold 65.4%
1
Endeavour United No. 2 Investment Limited Partnership
39.99%
2
Custody Bank of Japan, Ltd. (Trust Account)
4.45%
3
Kazuo KOYAMA
3.10%
4
Kirayaka Bank, Ltd.
2.86%
5
The 77 Bank,Ltd.
2.86%
6
The Toho Bank,Ltd.
2.86%
7
Ryuichi TOGASHI
2.74%
8
The Master Trust Bank of Japan, Ltd. (Trust Account)
2.68%
9
Nomura Trust and Banking Co., Ltd. (Investment Trust Account)
2.27%
10
Tsuyoshi KOYAMA
1.61%
Management
11 officers
Tsuyoshi KOYAMA
Representative Director, President
Apr 1996 Joined Yamagata Construction Co., Ltd. Mar 2003 Joined Sanwa Construction Co., Ltd. Apr 2007 Director and General Manager, President's Office, Sanwa Construction Co., Ltd. Apr 2009 Senior Managing Director, Sanwa Construction Co., Ltd. Sep 2010 Director, Shirakawa Plant, Yamato Ready-Mixed Concrete Co., Ltd. Jun 2013 Director and Executive Vice President, Sanwa Construction Co., Ltd. Apr 2015 Representative Director and Executive Vice President, Sanwa Construction Co., Ltd. Apr 2020 Representative Director and President, Sanwa Construction Co., Ltd. Jun 2020 Representative Director and President, KS Sangyo Co., Ltd. Jun 2020 Representative Director and President, Shirakawa Plant, Yamato Ready-Mixed Concrete Co., Ltd. Apr 2021 Representative Director and President, Sanwa Construction and Ononakamura Holdings Co., Ltd. (now the Company) (current) Dec 2021 Director, Minamiai Seibu Construction Corporation (current) Jul 2022 Director, Sanwa Construction Co., Ltd. (current) Jul 2022 Director, Shirakawa Plant, Yamato Ready-Mixed Concrete Co., Ltd. (current) Jul 2022 Director, Ononakamura Co., Ltd. (current) Jul 2022 Director, KS Sangyo Co., Ltd. Jan 2023 Director, Nansoken Co., Ltd. (current)
1973-04-26
Takashi INOUE
Director
Apr 1986 Joined Yamawa Construction Co., Ltd. Apr 2004 General Manager, Administration Department, Yamawa Construction Co., Ltd. Apr 2009 Director, General Manager, Administration Department, Yamawa Construction Co., Ltd. Jul 2017 Managing Director, Yamawa Construction Co., Ltd. Jul 2022 Representative Director, President, Yamawa Construction Co., Ltd. (current) Jul 2022 Representative Director, President, Shirakawa Plant, Daiwa Namacon Co., Ltd. (current) Jul 2022 Director of the Company (current)
1964-02-03
Kenji UEMURA
Director
Apr 1993 Joined Nihon Denro Co., Ltd. Feb 1995 Joined Nakamura Doboku Co., Ltd. (now Ononakamura Co., Ltd.) Jul 1996 Managing Director, Nakamura Doboku Co., Ltd. Apr 2003 Representative Director, President, Nakamura Doboku Co., Ltd. Jan 2018 Representative Director, President, Ononakamura Co., Ltd. Dec 2021 Representative Director, President, Nankai Seibu Construction Corporation Co., Ltd. Sep 2022 Director of the Company (current) Jan 2023 Director, Nanso Ken Co., Ltd. Jul 2024 Representative Director, President, Ononakamura Co., Ltd. (current)
1975-02-18
Kazuhisa OURA
Director
Apr 1989 Joined Hayama General Construction Co., Ltd. May 1991 Established Oura Construction Co., Ltd. Sep 2000 Joined Yamawa Construction Co., Ltd. Apr 2014 Director, Yamawa Construction Co., Ltd. May 2019 Director-level General Manager, Yamawa Construction Co., Ltd. May 2021 Executive Officer, Yamawa Construction Co., Ltd. Jul 2022 Managing Director, Yamawa Construction Co., Ltd. Jul 2024 Director of the Company (current) Jul 2024 Representative Director, President, Nankai Seibu Construction Corporation Co., Ltd. (current) Jul 2024 Director, Nanso Ken Co., Ltd. (current)
1970-08-13
Takahiro YUDA
Director
Dec 2004 Joined Deloitte Touche Tohmatsu (now Deloitte Touche Tohmatsu LLC) Jun 2008 Registered as Certified Public Accountant Jan 2020 Joined S Network Works Co., Ltd. Jan 2023 Joined the Company; Finance and Accounting Manager, Administration Department Jan 2023 Seconded to Nankai Seibu Construction Corporation Co., Ltd.; Executive Officer, General Affairs Department Aug 2023 Returned to the Company Jan 2024 Seconded to Nankai Seibu Construction Corporation Co., Ltd.; Executive Officer, Administration Department Jan 2024 Director, Nanso Ken Co., Ltd. Apr 2024 General Manager, Administration Department, the Company Jun 2024 Director and General Manager, Administration Department, the Company Jun 2024 Audit & Supervisory Board Member, Yamawa Construction Co., Ltd. (current) Jun 2024 Audit & Supervisory Board Member, Ononakamura Co., Ltd. (current) Jun 2024 Audit & Supervisory Board Member, Nankai Seibu Construction Corporation Co., Ltd. (current) Jun 2024 Audit & Supervisory Board Member, Nanso Ken Co., Ltd. (current) Oct 2024 Director of the Company (current)
1978-12-07
Masataka KATSURAGI
Director
Apr 1974 Joined Ministry of Construction (now Ministry of Land, Infrastructure, Transport and Tourism) Jul 2001 Deputy Director-General, Chugoku Regional Development Bureau, MLIT Aug 2002 Senior Research Fellow, Japan Institute of Construction Engineering Research Center (Foundation) May 2003 Director, same institution Aug 2004 Advisor, Kawada Industries, Inc. Jun 2005 Senior Managing Executive Officer, Kawada Industries, Inc. Jul 2015 Advisor, Kawada Industries, Inc. Jul 2015 Representative Director, President, Bridge Maintenance Co., Ltd. Jun 2017 Advisor, Bridge Maintenance Co., Ltd. Jun 2017 Chairman, PreBeam Promotion Association Mar 2020 Advisor, Tokyu Research Institute Inc. Mar 2023 Director of the Company (current) Jun 2023 Chairman, Japan Bearing Association (current)
1949-09-19
Toru TANIGUCHI
Director
Apr 1973 Joined Sasebo Heavy Industries Co., Ltd. Apr 1985 Joined Nippon Koei Co., Ltd. Jul 2002 Joined Abe Kogyosho Co., Ltd. (now Abe Nikko Kogyo Co., Ltd.) Sep 2004 Director, Kyushu Branch Manager, Abe Kogyosho Co., Ltd. Sep 2008 Director, Deputy Head of Sales Division, Abe Kogyosho Co., Ltd. Sep 2009 Managing Director, Head of Sales Division, Abe Kogyosho Co., Ltd. Oct 2014 Special Advisor, Abe Nikko Kogyo Co., Ltd. (current) Sep 2017 Advisor, Kokudo Kaihatsu Consultant Co., Ltd. (current) Sep 2024 Director of the Company (current)
1950-07-15
Yasunobu YAMIYA
Director
Apr 1981 Joined Nittoh Construction Co., Ltd. Apr 2005 General Manager, Osaka Branch, Nittoh Construction Co., Ltd. Jul 2007 Executive Officer, Deputy Head of Business Division, Nittoh Construction Co., Ltd. Jun 2008 Director, in charge of Management Planning Office, Nittoh Construction Co., Ltd. Jun 2009 Managing Executive Officer, in charge of Management Planning Office and Internal Control Promotion Office, Nittoh Construction Co., Ltd. Apr 2015 Senior Managing Executive Officer, Head of Management Strategy Division, Nittoh Construction Co., Ltd. Apr 2016 Director and Executive Vice President, Head of Management Strategy Division, in charge of Overseas Operations, and President, Indonesian Joint Venture Company, Nittoh Construction Co., Ltd. Jun 2021 Director and Executive Officer, President, Indonesian Joint Venture Company, Nittoh Construction Co., Ltd. Feb 2022 Advisor, Endeavour United Co., Ltd. Apr 2022 Audit & Supervisory Board Member, Gyosei Corporation Oct 2022 Outside Director, IR Japan Co., Ltd. Apr 2024 Part-time Advisor, Taisei Corporation Jun 2024 Director, Taisei Corporation Apr 2026 Director and Executive Vice President, Taisei Corporation (current) Sep 2026 Director of the Company (current)
1958-09-24
Tetsuo SATO
Full-time Audit & Supervisory Board Member
Apr 1984 Joined Tokyo Small and Medium Enterprise Investment and Business Development Corporation Apr 2004 General Manager, Second Business Department, Tokyo Small and Medium Enterprise Investment and Business Development Corporation Jul 2005 Manager, Finance Office, Tokyo Small and Medium Enterprise Investment and Business Development Corporation Apr 2009 General Manager, Third Business Department, Tokyo Small and Medium Enterprise Investment and Business Development Corporation Apr 2015 Senior Executive, First Business Department, Tokyo Small and Medium Enterprise Investment and Business Development Corporation Jul 2017 Audit & Supervisory Board Member, Koyo Engineering Co., Ltd. Mar 2019 Audit & Supervisory Board Member, Estchem Co., Ltd. Jan 2024 Audit & Supervisory Board Member of the Company (current) Jan 2024 Audit & Supervisory Board Member, Yamawa Construction Co., Ltd. (current) Jan 2024 Audit & Supervisory Board Member, Ononakamura Co., Ltd. (current) Jan 2024 Audit & Supervisory Board Member, Nankai Seibu Construction Corporation Co., Ltd. (current) Jan 2024 Audit & Supervisory Board Member, Nanso Ken Co., Ltd. (current)
1961-07-10
Nobuo ISHIMURA
Audit & Supervisory Board Member
Apr 1997 Joined The Sanwa Bank, Limited (now MUFG Bank, Ltd.) Dec 2010 Completed Legal Training and Research Institute, Supreme Court of Japan; registered as Attorney-at-Law Dec 2010 Joined Kasumigaseki Sogo Law Office (now Kasumigaseki Law Office) (current) Oct 2023 Audit & Supervisory Board Member of the Company (current)
1974-12-20
Rina KADONO
Audit & Supervisory Board Member
Apr 2003 Joined Chuo Aoyama PricewaterhouseCoopers (now PricewaterhouseCoopers Aarata) Apr 2006 Registered as Certified Public Accountant Aug 2007 Joined PwC Advisory Co., Ltd. (now PwC Advisory LLC) Jul 2011 Joined KPMG FAS Co., Ltd. Jun 2013 Joined Recruit Holdings Co., Ltd. Jun 2018 Full-time Audit & Supervisory Board Member, Hachimen Roppi Co., Ltd. (current) Oct 2018 Established Rina Kadono CPA Office; assumed position of Representative (current) Oct 2018 Representative Director, ACCESSO Inc. (current) Jan 2020 Supervisory Director, Invesco Office J-REIT, Inc. Jul 2020 Audit & Supervisory Board Member, Escrie Co., Ltd. Sep 2020 Audit & Supervisory Board Member, Soundfun Co., Ltd. Jun 2021 Outside Director (Audit and Supervisory Committee Member), Escrie Co., Ltd. Sep 2021 Audit & Supervisory Board Member, Linc'well Co., Ltd. (current) Jun 2022 Audit & Supervisory Board Member, Nifty Lifestyle Inc. (current) Jun 2022 Audit & Supervisory Board Member, Living Platform Co., Ltd. (current) Feb 2023 Audit & Supervisory Board Member, Modelate Co., Ltd. Sep 2024 Audit & Supervisory Board Member of the Company (current) Jun 2025 Outside Director (Audit and Supervisory Committee Member), SBI Aruhi Co., Ltd. (current)
1980-03-12
Large Shareholding Reports
Endeavor United Co., Ltd.
2026-10-05
19.02%→14.02%
Endeavor United Co., Ltd.
2026-10-01
23.00%→19.02%
Taiyo Kensetsu Co., Ltd.
2026-09-01
17.00%
Endeavor United Co., Ltd.
2025-11-07
47.16%→40.00%
Endeavor United Co., Ltd.
2025-10-30
40.00%
Endeavor United Co., Ltd.
2025-09-29
47.16%
Disclosures
No disclosures
Primary Source Filings
EDINET
2026-10-05
Large Shareholding Report
EDINET
2026-10-01
Large Shareholding Report
EDINET
2026-09-28
Annual Securities Report
Period: Jul 2025 – Jun 2026
EDINET
2026-09-01
Large Shareholding Report
TDnet
2026-05-15
Q3 Earnings Flash
FY ending Jun 2026
EDINET
2026-02-13
Semi-Annual Securities Report
Period: Jul 2025 – Jun 2026
TDnet
2025-11-13
Q1 Earnings Flash
FY ending Jun 2026
EDINETAmended
2025-11-07
Change Report
EDINET
2025-10-30
Large Shareholding Report
EDINET
2025-09-30
Annual Securities Report
Period: Jul 2024 – Jun 2025
EDINET
2025-09-29
Large Shareholding Report
EDINETAmended
2025-09-17
Amended Securities Registration Statement
EDINETAmended
2025-09-08
Amended Securities Registration Statement
EDINET
2025-08-20
Securities Registration Statement
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