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Overview

RKB MAINICHI HOLDINGS CORPORATION

RKB Mainichi Holdings Corporation is a certified broadcasting holding company headquartered in Fukuoka, operating a diversified media and services group centered on RKB Mainichi Broadcasting Corporation, a TBS-affiliated television and radio broadcaster serving the Fukuoka/Kyushu region. Beyond its core broadcasting operations—including time and spot advertising sales, program production, and event planning—the group conducts IT system development and cloud/security services (via subsidiary BCC), real estate leasing and parking management, solar power generation, land-based salmon aquaculture, and EC (e-commerce) businesses. The group consists of the parent holding company, 10 subsidiaries, and 3 affiliated companies, reflecting a strategy of diversifying revenue streams beyond traditional broadcasting.

Market Cap

¥—B

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

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LTM EV/EBIT

—

LTM PER

—

LTM PBR

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No price data

Stock data unavailable

This company is listed on a regional exchange (Nagoya/Fukuoka/Sapporo) and is not distributed via J-Quants (JPX). Stock price, market cap, and EV-based multiples are not available. Financial data from public filings (P&L, BS, directors, etc.) remains accurate for analysis.

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Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

88%

EquityD/E 0.14xDebt

Liquidity vs Debt 5Y (¥B)▲ Net Cash

CashInv. Sec.Debt

Shareholders

Top 10 hold 50.7%

as of 2026-03-31 · Source: Annual Securities Report

MBS MEDIA HOLDINGS, INC.

9.03%

The Mainichi Newspapers Co., Ltd.

8.63%

Aso Corporation

7.08%

TBS HOLDINGS,INC.

6.38%

The Bank of Fukuoka, Ltd.

4.65%

The Nishi-Nippon City Bank, Ltd.

3.34%

Nishi-Nippon Railroad Co.,Ltd.

3.10%

Master Trust Bank of Japan, Ltd. (Retirement Benefit Trust Account for Kyushu Electric Power Co., Inc. and Kyushu Electric Power Transmission and Distribution Co., Inc.)

2.99%

The Higo Bank, Ltd.

2.82%

THE HONGKONG AND SHANGHAI BANKING CORPORATION LIMITED-HONGKONG PRIVATE BANKING DIVISION CLIENT A/C 8028-394841 (Standing Proxy: The Hongkong and Shanghai Banking Corporation Limited, Tokyo Branch)

2.70%

Management

16 officers

Izumi SATO

Representative Director, President

Apr 1991 Joined the Company Apr 2016 Director, Television Sales Division, RKB Mainichi Broadcasting Corporation Apr 2017 Executive Officer, RKB Mainichi Broadcasting Corporation Jun 2019 Director, RKB Mainichi Broadcasting Corporation Jun 2020 Director, the Company Jun 2020 Representative Director, Senior Managing Director and Executive Officer, RKB Mainichi Broadcasting Corporation Jun 2021 Representative Director, President and Executive Officer, RKB Mainichi Broadcasting Corporation Jun 2021 Representative Director, the Company Jun 2023 Representative Director, President, the Company (current) Jun 2023 Representative Director, President, RKB Mainichi Broadcasting Corporation (current)

1967-06-24

Takashi UMEZAKI

Representative Director

Apr 1989 Joined the Company Apr 2019 General Manager, Media Lab (Bureau Director) and Bureau Director in charge of Technology Bureau, RKB Mainichi Broadcasting Corporation Jun 2019 Executive Officer, General Manager, Media Lab (Bureau Director) and Bureau Director in charge of Technology Bureau, RKB Mainichi Broadcasting Corporation Jun 2020 Director and Executive Officer, RKB Mainichi Broadcasting Corporation Jun 2021 Director and Executive Officer, General Manager, Tokyo Branch, RKB Mainichi Broadcasting Corporation Jun 2022 Director, the Company Jun 2023 Representative Director, the Company (current) Jun 2023 Director, RKB Mainichi Broadcasting Corporation Jun 2023 Outside Audit & Supervisory Board Member, Mainichi Group Holdings Co., Ltd. (current) Jun 2024 Managing Director, RKB Mainichi Broadcasting Corporation (current)

1964-12-14

Masamichi IWAKUMA

Director

Apr 1986 Joined the Company Jun 2014 Bureau Director, Media Business Bureau, the Company Jun 2018 Director, RKB Mainichi Broadcasting Corporation Jun 2019 Director, the Company (current) Jun 2020 Managing Director and Executive Officer, RKB Mainichi Broadcasting Corporation Jun 2021 Representative Director, Senior Managing Director and Executive Officer, RKB Mainichi Broadcasting Corporation Jun 2023 Representative Director, Senior Managing Director, RKB Mainichi Broadcasting Corporation (current)

1962-04-06

Takumi NAGAI

Director

Aug 1997 Joined the Company Apr 2016 Bureau Director, Group General Affairs Bureau, the Company Jun 2019 Executive Officer, Bureau Director of Accounting and Director of Management Strategy Office, RKB Mainichi Broadcasting Corporation Jun 2020 Executive Officer, Bureau Director of Corporate Planning, RKB Mainichi Broadcasting Corporation Jun 2022 Director, Bureau Director of Business Development, the Company Jun 2022 Director and Executive Officer, RKB Mainichi Broadcasting Corporation Jun 2023 Director, RKB Mainichi Broadcasting Corporation Jun 2023 Director, the Company Jun 2024 Managing Director, RKB Mainichi Broadcasting Corporation (current) Jun 2024 Director, Bureau Director of Group Strategy Office, the Company (current)

1965-11-24

Isao TANAKA

Director

Apr 1984 Joined Business Consultants Center Co., Ltd. (now BCC Co., Ltd.) Apr 2012 Executive Officer, Head of Government and Public Works Division, BCC Co., Ltd. Apr 2013 Executive Officer, in charge of System and Cloud Business and Head of Government and Public Works Division, BCC Co., Ltd. Apr 2014 Executive Officer, in charge of System Business and Head of Government and Public Works Division, BCC Co., Ltd. Jun 2014 Director, BCC Co., Ltd. Jun 2017 Managing Director, BCC Co., Ltd. Jun 2018 Senior Managing Director, BCC Co., Ltd. Jun 2019 Representative Director, President, BCC Co., Ltd. (current) Jun 2022 Director, the Company (current)

1960-09-28

Kenji ICHIKAWA

Director

Dec 1999 Joined the Company Jun 2022 Bureau Director of Corporate Planning, the Company Jun 2022 Executive Officer, Bureau Director of Corporate Planning, RKB Mainichi Broadcasting Corporation Jun 2024 Director, Bureau Director of Accounting, RKB Mainichi Broadcasting Corporation (current) Jun 2024 Director, Bureau Director of Accounting, the Company (current)

1969-05-20

Hironobu ITO

Director

Apr 2015 General Manager, Next-Generation Business Planning Office, Tokyo Broadcasting System Holdings, Inc. (now TBS Holdings, Inc.) Jul 2017 Bureau Director, Network Bureau, TBS Television, Inc. Jun 2021 Executive Officer, TBS Television, Inc. (current) Jun 2022 Managing Director, Kumamoto Broadcasting Co., Ltd. (current) Jun 2022 Director, the Company (current)

1963-03-04

Michiaki URYU

Director

Jul 2008 Executive Officer, Kyushu Electric Power Company, Inc. Jun 2009 Director and Managing Executive Officer, Kyushu Electric Power Company, Inc. Jun 2011 Representative Director, Executive Vice President, Kyushu Electric Power Company, Inc. Apr 2012 Representative Director, President, Kyushu Electric Power Company, Inc. Jun 2012 Director, the Company Jun 2018 Representative Director, Chairman, Kyushu Electric Power Company, Inc. Jun 2021 Director, the Company (current) Jun 2025 Special Adviser, Kyushu Electric Power Company, Inc. (current)

1949-03-18

Takanari SHIBATO

Director

Jun 2003 Director, The Bank of Fukuoka, Ltd. Apr 2005 Managing Director, The Bank of Fukuoka, Ltd. Jun 2006 Director and Managing Executive Officer, The Bank of Fukuoka, Ltd. Apr 2007 Director and Senior Managing Executive Officer, The Bank of Fukuoka, Ltd. Apr 2007 Director, Fukuoka Financial Group, Inc. Apr 2009 Director and Executive Officer, Fukuoka Financial Group, Inc. Apr 2010 Deputy President, Representative Director, The Bank of Fukuoka, Ltd. Apr 2012 Executive Vice President, Representative Director, Fukuoka Financial Group, Inc. Jun 2014 President, Representative Director, Fukuoka Financial Group, Inc. Jun 2014 President, Representative Director, The Bank of Fukuoka, Ltd. Jun 2018 Director, the Company (current) Apr 2019 Chairman and President, Representative Director, Fukuoka Financial Group, Inc. Apr 2019 Chairman and President, Representative Director, The Bank of Fukuoka, Ltd. Apr 2022 Chairman, Representative Director, Fukuoka Financial Group, Inc. (current) Apr 2022 Chairman, Representative Director, The Bank of Fukuoka, Ltd. (current)

1954-03-13

Masayuki TAKAYAMA

Director

Jun 2019 Director, Mainichi Broadcasting System, Inc. Jun 2020 Director, MBS Media Holdings Co., Ltd. Jun 2021 Managing Director, Mainichi Broadcasting System, Inc. Jun 2022 Representative Director, MBS Media Holdings Co., Ltd. (current) Jun 2023 Director, the Company (current) Jun 2025 Director, Mainichi Broadcasting System, Inc. (current)

1962-11-29

Koichi HAYASHIDA

Director

Jun 2016 Executive Officer, Nishi-Nippon Railroad Co., Ltd. Apr 2018 Senior Executive Officer, Nishi-Nippon Railroad Co., Ltd. Jun 2018 Director, Nishi-Nippon Railroad Co., Ltd. Apr 2020 Managing Director and Senior Executive Officer, Nishi-Nippon Railroad Co., Ltd. Apr 2021 Representative Director, President and Executive Officer, Nishi-Nippon Railroad Co., Ltd. (current) Jun 2021 Director, the Company (current)

1965-09-05

Ken MATSUKI

Director

Jun 2018 Executive Officer, The Mainichi Newspapers Co., Ltd. Jun 2019 Director, The Mainichi Newspapers Co., Ltd. Apr 2022 Representative Director, President and Executive Officer, The Mainichi Newspapers Co., Ltd. Jun 2022 Director, Mainichi Group Holdings Co., Ltd. Jun 2023 Representative Director, President, Mainichi Group Holdings Co., Ltd. (current) Jun 2023 Director, the Company (current) Jun 2023 Outside Director, TBS Television, Inc. (current) Apr 2026 Representative Director, Chairman and Executive Officer, The Mainichi Newspapers Co., Ltd. (current)

1961-05-27

Mikio KOBAYASHI

Full-time Corporate Auditor

Apr 1986 Joined the Company Apr 2016 General Manager, Tokyo Branch (Bureau Director), RKB Mainichi Broadcasting Corporation Jun 2019 Executive Officer, Bureau Director of Television Sales, RKB Mainichi Broadcasting Corporation Jun 2021 Director and Executive Officer, RKB Mainichi Broadcasting Corporation Jun 2023 Director, RKB Mainichi Broadcasting Corporation Jun 2024 Corporate Auditor, RKB Mainichi Broadcasting Corporation Jun 2024 Full-time Corporate Auditor, the Company (current)

1962-04-02

Yuichi OKABE

Corporate Auditor

Apr 1983 Joined the Company Jun 2010 General Manager, Tokyo Branch (Bureau Director), the Company Jun 2012 Director, the Company Jun 2015 Managing Director, the Company Apr 2016 Managing Director, RKB Mainichi Broadcasting Corporation Jun 2018 Director, the Company Jun 2020 Full-time Corporate Auditor, the Company Jun 2020 Corporate Auditor, RKB Mainichi Broadcasting Corporation (current) Jun 2024 Corporate Auditor, the Company (current)

1959-11-06

Yoshinari NUMANO

Corporate Auditor

Apr 2019 Executive Officer, General Manager of General Affairs and Public Relations Department, Saibu Gas Co., Ltd. (now Saibu Gas Holdings Co., Ltd.) Apr 2021 Representative Director, President, Saibu Gas Nagasaki Co., Ltd. Apr 2023 Managing Executive Officer, Saibu Gas Holdings Co., Ltd. Jun 2023 Director and Managing Executive Officer, Saibu Gas Holdings Co., Ltd. Jun 2024 Corporate Auditor, the Company (current) Jun 2025 Director and Audit and Supervisory Committee Member, Saibu Gas Holdings Co., Ltd. (current)

1962-07-01

Hitoshi YASUKAWA

Corporate Auditor

Apr 2010 General Manager, General Affairs Department, Kitakyushu Branch, Kyushu Denki Koji Co., Ltd. (now Craftia Corporation) Apr 2017 Managing Executive Officer, Human Resources and Labor Relations Department, Kyushu Denki Koji Co., Ltd. Apr 2021 Executive Officer, Head of Kyuden Academy, Kyushu Denki Koji Co., Ltd. Apr 2022 Executive Officer, Kyushu Denki Koji Co., Ltd. Jun 2022 Corporate Auditor, the Company (current) Apr 2024 Senior Executive Officer, Craftia Corporation (current)

1962-07-20

Large Shareholding Reports

No filings

Disclosures

No disclosures

Primary Source Filings

TDnet

2026-08-06

Q1 Earnings Flash

FY ending Mar 2027

RKB MAINICHI HOLDINGS CORPORATION

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