Overview
Construction

TANAKEN Inc.

TANAKEN Co., Ltd. (formerly Tanaka Kensetsu Kogyo Co., Ltd.) specializes in construction management for demolition of buildings and structures, offering comprehensive one-stop services including site surveys, methodology proposals, design, construction planning, safety management, and administrative coordination. The company also manages related civil engineering works such as earth retaining, foundation demolition, and pile extraction, as well as remediation of hazardous materials including asbestos, PCBs, and dioxins. Leveraging decades of accumulated expertise, the company delivers cost-efficient, schedule-conscious, and safety-oriented demolition solutions, primarily in the Tokyo metropolitan area and major urban regions.

Market Cap
¥13.0B
US$82.6M
EV
¥11.4B
US$73.0M
Stock¥1,489▼-0.07%
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
4.8
x
LTM EV/EBIT
5.0
x
LTM PER
8.2
x
LTM PBR
1.4
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-18.8%pt
100
Oct 24, 25 – Oct 23, 26StockTOPIX
MC → EV Bridge
13.0BUS$82.6MMarket Cap1.00BUS$6.38M+ Debt2.12BUS$13.5M− Cash0.39BUS$2.52M− Inv. Sec.11.4BUS$73.0MEV
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Performance & Balance
Revenue 5Y (¥B)
9.82US$62.7M'22/311.2US$71.7M'23/310.7US$68.1M'24/312.3US$78.4M'25/314.8US$94.5M'26/3
EBITDA 5Y (¥B)
1.45US$9.25M'22/31.59US$10.2M'23/31.66US$10.6M'24/32.38US$15.2M'25/32.23US$14.3M'26/3
Net Income 5Y (¥B)
0.97US$6.17M'22/31.09US$6.93M'23/31.09US$6.95M'24/31.58US$10.1M'25/31.50US$9.58M'26/3
Capital Structure
90%
EquityD/E 0.11xDebt
Liquidity vs Debt 5Y (¥B)▲ Net Cash
CashInv. Sec.Debt
3.15US$20.1M'22/32.48US$15.8M'23/32.62US$16.7M'24/34.36US$27.8M'25/33.38US$21.5M'26/3
Shareholders
Top 10 hold 73.0%
1
Three Hundred Holdings Co., Ltd.
59.56%
2
Fuji Soko Unyu Co., Ltd.
2.56%
3
Toshiaki TANAKA
2.56%
4
Daiei Real Estate & Development Co.,Ltd.
1.52%
5
Kazutoshi YOSHIOKA
1.32%
6
Custody Bank of Japan, Ltd. (Trust Account)
1.29%
7
Hikari Tsushin Investment Business Limited Partnership
1.14%
8
Toru SUZUKI
1.06%
9
Toshitsune TANAKA
1.02%
10
Yoko MATSUNO
1.02%
Management
8 officers
Yasushi NAKAO
Representative Director, President and Executive Officer
Apr 1984 Joined Saitama Bank, Ltd. (now Saitama Resona Bank, Limited) Jun 2009 Executive Officer, Resona Bank, Limited Oct 2012 Managing Executive Officer, Resona Bank, Limited Apr 2016 Executive Officer, Resona Holdings, Inc. Apr 2017 Senior Managing Executive Officer, Resona Bank, Limited Apr 2018 Deputy President and Executive Officer, Representative Director, Saitama Resona Bank, Limited Jun 2020 President, Representative Director, Fuji Soko Unyu Co., Ltd. Apr 2021 Advisor, the Company Jun 2021 Representative Director, President and Executive Officer, the Company (current)
1962-02-19
Masami UCHIDA
Director, Senior Managing Executive Officer; General Manager, Head Office Supervision and Corporate Division
Apr 1988 Joined Kyowa Bank, Ltd. (now Resona Bank, Limited) Apr 2013 General Manager, Kawasaki Branch and General Manager, Sales Division I, Resona Bank, Limited Jan 2014 Branch Manager, Soka Branch, Saitama Resona Bank, Limited Apr 2016 Branch Manager, Tokorozawa Branch, Saitama Resona Bank, Limited Apr 2017 Executive Officer, Saitama Resona Bank, Limited Apr 2020 Managing Executive Officer, Saitama Resona Bank, Limited Apr 2023 Managing Executive Officer, General Manager, Administration Division, the Company Jun 2023 Director, Managing Executive Officer, General Manager, Administration Division, the Company Apr 2024 Director, Senior Managing Executive Officer, Head Office Supervision and General Manager, Administration Division, the Company Apr 2026 Director, Senior Managing Executive Officer, Head Office Supervision and General Manager, Corporate Division, the Company (current)
1965-04-07
Kenji SHIRAISHI
Director, Managing Executive Officer; General Manager, Construction Division
Apr 1984 Joined Penta-Ocean Construction Co., Ltd. Apr 1998 Manager, Architectural Planning Section, Construction Control Department, Construction Division, Penta-Ocean Construction Co., Ltd. Apr 2002 General Manager, Architectural Department, Tokyo Building Branch, Penta-Ocean Construction Co., Ltd. Apr 2005 Manager, Facility Management Office, General Affairs Department, Aflac Life Insurance Japan Ltd. Apr 2012 Manager, Facility Management Section, General Affairs Department, Aflac Life Insurance Japan Ltd. Apr 2017 Counselor, General Affairs Department, Aflac Life Insurance Japan Ltd. May 2018 Joined the Company, Chief Manager, Construction Department Jan 2019 General Manager, Construction Department, the Company Apr 2019 General Manager, Construction Division, the Company Jun 2019 Director, General Manager, Construction Division, the Company Jun 2020 Director, Senior Executive Officer, General Manager, Construction Division and General Manager, Construction Department, the Company Apr 2023 Director, Managing Executive Officer, General Manager, Construction Division and Manager, Construction Support Office, the Company Apr 2025 Director, Managing Executive Officer, General Manager, Construction Division, the Company (current)
1959-10-03
Takao NAKAME
Outside Director
Apr 1977 Joined Saitama Bank, Ltd. (now Saitama Resona Bank, Limited) Feb 1999 Branch Manager, Hanno Branch, Asahi Bank, Ltd. (now Resona Bank, Limited) May 2002 Full-time Audit & Supervisory Board Member, Maruhiro Department Store Co., Ltd. May 2005 Director, Maruhiro Department Store Co., Ltd. Mar 2007 Managing Director, Maruhiro Department Store Co., Ltd. Mar 2010 Senior Managing Director, Maruhiro Department Store Co., Ltd. Mar 2016 Vice President, Director, Maruhiro Department Store Co., Ltd. May 2019 Advisor, Maruhiro Department Store Co., Ltd. Jun 2021 Outside Director, the Company (current)
1953-10-07
Kazuhiro SUZUKI
Outside Director
Apr 1976 Appointed Public Prosecutor, Tokyo District Public Prosecutors Office Jan 2009 Director, Criminal Affairs Department, Supreme Public Prosecutors Office Jun 2010 Chief Public Prosecutor, Tokyo District Public Prosecutors Office Aug 2011 Superintending Public Prosecutor, Hiroshima High Public Prosecutors Office Jun 2012 Superintending Public Prosecutor, Fukuoka High Public Prosecutors Office Jan 2014 Retired as Public Prosecutor May 2014 Registered as Attorney-at-Law (Dai-Ichi Tokyo Bar Association) Jun 2014 Chairman, Japan International Training Cooperation Organization (JITCO) May 2015 Outside Audit & Supervisory Board Member, later Outside Director, Nitori Holdings Co., Ltd. Jun 2015 Outside Audit & Supervisory Board Member, later Outside Director, Saitama Resona Bank, Limited Jul 2018 Public Supervisory Officer, PwC Arata LLC (now PwC Japan LLC) Jun 2024 Outside Director, the Company (current)
1951-09-04
Masaru YASUDA
Full-time Audit & Supervisory Board Member
Apr 1969 Joined Hokkaido Takushoku Bank, Ltd. Jul 1996 Branch Manager, Higashimurayama Branch, Hokkaido Takushoku Bank, Ltd. Nov 1998 Branch Manager, Higashimurayama Branch, Chuo Trust & Banking Co., Ltd. (now Sumitomo Mitsui Trust Bank, Limited) Mar 2000 Branch Manager, Koishikawa Branch, Chuo Mitsui Trust & Banking Co., Ltd. (now Sumitomo Mitsui Trust Bank, Limited) Aug 2001 Chief Investigator, Internal Audit Department, Chuo Mitsui Trust & Banking Co., Ltd. May 2015 Advisor, the Company Nov 2015 Outside Full-time Audit & Supervisory Board Member, the Company (current)
1950-12-03
Kunimitsu YANAI
Audit & Supervisory Board Member
Nov 1981 Joined Showa Audit Corporation (now EY ShinNihon LLC) Jul 1996 Partner, Ota Showa Audit Corporation (now EY ShinNihon LLC) Jul 2000 Ernst & Young, London Office Sep 2007 Ernst & Young, New York Office Apr 2009 Director, MNC (Multinational Clients) Department, ShinNihon LLC (now EY ShinNihon LLC) Jul 2011 Deputy Division Head, Third Audit Business Division, ShinNihon LLC (now EY ShinNihon LLC) Jan 2016 Auditor (part-time), Japan Pension Service Jun 2017 Outside Audit & Supervisory Board Member (part-time), Nihon Unisys, Ltd. (now BIPROGY Inc.) Jun 2022 Outside Audit & Supervisory Board Member (part-time), the Company (current)
1953-12-02
Yuji NAKAMITSU
Audit & Supervisory Board Member
Apr 1981 Joined Penta-Ocean Construction Co., Ltd. Apr 2011 Executive Officer, Deputy Branch Manager, Tokyo Building Branch, Penta-Ocean Construction Co., Ltd. Jun 2012 Director, Executive Officer, General Manager, Building Division, Penta-Ocean Construction Co., Ltd. Apr 2014 Director, Managing Executive Officer, General Manager, Building Sales Division, Penta-Ocean Construction Co., Ltd. Apr 2016 Director, Senior Managing Executive Officer, General Manager, Building Sales Division, Penta-Ocean Construction Co., Ltd. Apr 2017 Director, Senior Managing Executive Officer, General Manager, Building Division, Penta-Ocean Construction Co., Ltd. Jun 2018 Senior Managing Executive Officer, in charge of Building Division, Penta-Ocean Construction Co., Ltd. May 2020 Representative Director, Penta Builders Co., Ltd. Jun 2022 Director, Penta Builders Co., Ltd. Jun 2024 Outside Audit & Supervisory Board Member (part-time), the Company (current)
1958-08-01
Large Shareholding Reports
No filings
Disclosures
No disclosures
Primary Source Filings
TDnet
2026-07-31
Q1 Earnings Flash
FY ending Mar 2027
EDINET
2026-06-19
Annual Securities Report
Period: Apr 2025 – Mar 2026
TDnet
2026-06-01
株主総会招集通知
TDnet
2026-02-06
Q3 Earnings Flash
FY ending Mar 2026
EDINET
2025-11-07
Semi-Annual Securities Report
Period: Apr 2025 – Mar 2026
TDnet
2025-08-01
Q1 Earnings Flash
FY ending Mar 2026
EDINET
2025-06-20
Annual Securities Report
Period: Apr 2024 – Mar 2025
TDnet
2025-02-07
Q3 Earnings Flash
FY ending Mar 2025
EDINET
2024-11-08
Semi-Annual Securities Report
Period: Apr 2024 – Mar 2025
TDnetAmended
2024-08-02
Q1 Earnings Flash
FY ending Mar 2025
TDnet
2024-08-01
Q1 Earnings Flash
FY ending Mar 2025
EDINET
2024-06-28
Annual Securities Report
Period: Apr 2023 – Mar 2024
EDINET
2024-02-09
Quarterly Securities Report
Period: Oct 2023 – Dec 2023
EDINET
2023-11-10
Quarterly Securities Report
Period: Jul 2023 – Sep 2023
EDINET
2023-08-02
Quarterly Securities Report
Period: Apr 2023 – Jun 2023
EDINET
2023-06-30
Annual Securities Report
Period: Apr 2022 – Mar 2023
EDINET
2023-02-14
Quarterly Securities Report
Period: Oct 2022 – Dec 2022
EDINET
2022-11-14
Quarterly Securities Report
EDINET
2022-08-12
Quarterly Securities Report
EDINET
2022-06-30
Annual Securities Report
EDINET
2022-02-14
Quarterly Securities Report
EDINET
2021-11-12
Quarterly Securities Report
EDINET
2021-08-12
Quarterly Securities Report
EDINET
2021-06-30
Annual Securities Report
EDINET
2021-02-15
Quarterly Securities Report
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