Overview
Information & Communication

BroadBand Tower,Inc.

The company operates two core business segments: Computer Platform and Media Solution. The Computer Platform segment provides data center colocation services, proprietary cloud services ("c9"), multi-cloud solutions, MSP monitoring, and data storage products (including Dell PowerScale/Isilon, Superna Eyeglass, and Scality RING) through the parent company and subsidiary TSS Link. The Media Solution segment, operated by subsidiary Japan Cable Cast (JCC), delivers multi-channel programming distribution and data broadcasting services to cable television operators, as well as regional disaster prevention DX solutions for local governments.

Market Cap
¥15.0B
US$95.7M
EV
¥10.7B
US$68.1M
Stock¥244▼-2.40%
US$1 = ¥157.05 (2026-10-22)
LTM EV/EBITDA
6.3
x
LTM EV/EBIT
7.8
x
LTM PER
28.4
x
LTM PBR
1.6
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+26.0%pt
10012345
Oct 23, 25 – Oct 23, 26StockTOPIX
1Feb 9, 26SilverCape Investments Limited filed large shareholding report
2Feb 16, 26SilverCape Investments Limited changed stake (6.35%→8.55%)
3Feb 17, 26SilverCape Investments Limited changed stake (8.55%→11.0%)
4Mar 4, 26SilverCape Investments Limited changed stake (11.0%→12.4%)
5Mar 10, 26SilverCape Investments Limited changed stake (12.4%→14.0%)
MC → EV Bridge
15.0BUS$95.7MMarket Cap2.00BUS$12.7M+ Debt7.45BUS$47.4M− Cash2.51BUS$16.0M− Inv. Sec.3.62BUS$23.1M+ NCI10.7BUS$68.1MEV
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Performance & Balance
Revenue 5Y (¥B)
15.5US$98.9M'21/1214.1US$89.9M'22/1213.2US$84.3M'23/1213.4US$85.5M'24/1215.3US$97.4M'25/12
EBITDA 5Y (¥B)
1.38US$8.77M'21/121.06US$6.72M'22/121.04US$6.63M'23/121.70US$10.8M'24/121.62US$10.3M'25/12
Net Income 5Y (¥B)
-0.00-US$0.02M'21/12-0.39-US$2.49M'22/120.10US$0.63M'23/120.40US$2.57M'24/120.30US$1.91M'25/12
Capital Structure
82%
EquityD/E 0.22xDebt
Liquidity vs Debt 5Y (¥B)▲ Net Cash
CashInv. Sec.Debt
9.24US$58.9M5.05US$32.2M'21/129.47US$60.3M4.52US$28.8M'22/128.58US$54.6M3.64US$23.2M'23/129.99US$63.6M2.94US$18.7M'24/129.18US$58.4M2.36US$15.1M'25/12
Shareholders
Top 10 hold 51.6%
1
Internet Research Institute, Inc.
16.26%
2
SILVERCAPE INVESTMENTS LIMITED (Standing Proxy: Citibank, N.A., Tokyo Branch)
15.04%
3
INTERACTIVE BROKERS LLC (Standing Proxy: Interactive Brokers Securities Japan Inc.)
10.21%
4
Nobuhide GOWA
2.73%
5
LY Corporation
2.11%
6
Akihiro KINUGAWA
1.53%
7
Rakuten Securities, Inc. (Joint Account)
1.13%
8
Tomohiro SUZUKI
0.97%
9
GOLDMAN,SACHS & CO.REG (Standing Proxy: Goldman Sachs Japan Co., Ltd.)
0.87%
10
JPMSLLC CLIENT ASSETS SK JPY (Standing Proxy: Citibank, N.A., Tokyo Branch)
0.71%
Management
13 officers
Hiroshi FUJIWARA
Representative Director, Chairman and President, CEO
Apr 1977 Joined IBM Japan, Ltd. Dec 1977 Joined Hitachi Engineering Co., Ltd. Feb 1985 Joined ASCII Corporation Feb 1987 Seconded to Graphics Communication Technologies, Ltd. as Director, Head of R&D Sep 1988 Visiting Researcher, Bell Communications Research (Bellcore), U.S. Apr 1991 Seconded to GC Technology Co., Ltd. Mar 1993 Seconded to Graphics Communication Laboratories, Ltd. as Managing Director, Head of R&D Jun 1993 Director, ASCII Corporation Apr 1996 Visiting Professor, Faculty of Science and Technology, Keio University Dec 1996 Founded Internet Research Institute, Inc.; Representative Director, President of the Institute (current) Nov 1999 Director, Mobile Internet Capital, Inc. (current) Mar 2002 Representative Director, Chairman, the Company Sep 2004 Director, Chairman, the Company Nov 2005 Founded Nanooptonics Research Institute, Inc. (now Unimo Inc.); Representative Director Sep 2006 Director, the Company Jun 2007 Director, Japan Cable Cast, Inc. Apr 2008 Vice President, SBI Graduate School Jul 2008 Representative Director, Nano Opto Media Inc. Jun 2011 Director, Trinity Security Systems, Inc. (now TSS Link Co., Ltd.) Sep 2011 Representative Director, Chairman and CEO, the Company Apr 2012 Representative Director, Chairman and President, CEO, the Company (current) Nov 2012 Director and Chairman, Nanooptonics Energy, Inc. (now Unimo Inc.) (current) Jun 2015 Chairman, Internet Association (general incorporated foundation) (current) Dec 2015 Director, AI Square Inc. (current) Feb 2016 Director, Global IoT Technology Ventures Inc. (now GiTV Inc.) (current) Aug 2017 Chairman and CEO, Internet Research Institute Ltd. (current) Oct 2017 Representative Director, IoT Square Inc. (now ECBO Square Inc.) Apr 2018 Managing Director and Director of Financial Research Institute, SBI Graduate School Jun 2018 Representative Director, Chairman and CEO, Japan Cable Cast, Inc. May 2019 Representative Director, Japan System Development Research Institute (general incorporated foundation) Jun 2019 Representative Director, President, TSS Link Co., Ltd. (current) Sep 2019 Director, IoT Square Inc. (now ECBO Square Inc.) Mar 2021 Representative Director, Chairman and President, CEO, Japan Cable Cast, Inc. (current) Apr 2021 President, SBI Graduate School Jul 2021 Representative Director, Chairman, Nano Opto Media Inc. (current) Apr 2022 Representative Director, Digital Garden City Nation Support Group (general incorporated association; now Japan DX Regional Revitalization Support Group) (current) May 2023 Director, SBI Graduate School (current)
1954-09-26
Mieko NAKAGAWA
Representative Director, Senior Managing Director, in charge of Legal and Accounting
Apr 1989 Joined Hirooka Advertising Office, Inc. Jan 1992 Joined ASCII Corporation Apr 1993 Seconded to Graphics Communication Laboratories, Ltd. Aug 1998 Joined Internet Research Institute, Inc. Sep 2002 Director in charge of Corporate Governance, Internet Research Institute, Inc. Sep 2003 Audit & Supervisory Board Member, the Company Apr 2005 Director in charge of Corporate Governance and CPO, Internet Research Institute, Inc. Sep 2009 Executive Officer in charge of Corporate Governance, Internet Research Institute, Inc. Mar 2011 Director in charge of Corporate Governance and General Affairs & HR, Internet Research Institute, Inc. Sep 2011 Director, COO, Internet Research Institute, Inc. (current) Sep 2011 Full-time Audit & Supervisory Board Member, the Company Sep 2012 Director in charge of Legal and Accounting, the Company Feb 2016 Audit & Supervisory Board Member, Global IoT Technology Ventures Inc. (now GiTV Inc.) (current) Sep 2016 Managing Director in charge of Legal and Accounting, the Company Nov 2017 Director, Internet Research Institute Ltd. Feb 2023 Acting President, Representative Director in charge of Legal and Accounting, the Company Mar 2025 Representative Director, Senior Managing Director in charge of Legal and Accounting, the Company (current)
1963-01-05
Shigeru OIKAWA
Managing Director, General Manager of Human Resources and General Affairs
Apr 1988 Joined Omori Pharmaceutical Co., Ltd. (now Suzuken Co., Ltd.) Mar 1990 Joined Jaleco Ltd. Apr 1994 Section Manager, HR Department, Jaleco Ltd. Apr 1999 Department Manager, HR Department, Jaleco Ltd. Jan 2002 Department Manager, HR and General Affairs Departments, Jaleco Ltd. Apr 2004 Joined the Company; Assistant Manager, HR and General Affairs Department Oct 2005 Department Manager, HR and General Affairs Department, the Company Sep 2010 Senior Director, HR and General Affairs (now HR and General Affairs Group), the Company Sep 2012 Director in charge of Human Resources and General Affairs, the Company Sep 2016 Managing Director, General Manager of Human Resources and General Affairs, the Company (current) Mar 2020 Director, Japan Cable Cast, Inc. (current)
1965-12-28
Hidemoto LEE
Managing Director, in charge of Management Strategy, DC Business and Hyperscale DC Strategy
Mar 2007 Joined the Company, HR and General Affairs Department Sep 2008 Manager, HR and General Affairs Department, the Company Sep 2010 Professional, Administration, the Company Sep 2011 Director, Legal and Internal Control Group, the Company Sep 2012 Senior Director, Legal Group, the Company Sep 2014 Executive Officer, Business Strategy Office, the Company Dec 2014 In charge of cloud business promotion, Secure Inc. Sep 2016 Director, Executive Officer in charge of DC, Cloud and Storage Strategy, the Company Jun 2018 Director, Japan Cable Cast, Inc. Jul 2018 Representative Director, Helix Inc. (current) Sep 2018 Director, Executive Officer in charge of Management Strategy and DC Business, the Company Jun 2019 Director, TSS Link Co., Ltd. Dec 2021 Director, Executive Officer in charge of Hyperscale DC Strategy, the Company Mar 2022 Managing Director in charge of Management Strategy, DC Business and Hyperscale DC Strategy, the Company (current) Feb 2023 Representative Director, TSS Link Co., Ltd. (current) May 2023 Director, Mainichi Mirai Sozo Lab Inc. (current) Jul 2025 Director, JPIX Inc. (current) Mar 2026 Director, Japan Cable Cast, Inc. (current)
1974-10-09
Yosuke HIYAMA
Director, Executive Officer in charge of DC, Cloud and Storage Sales
Apr 2003 Joined S&I Co., Ltd. Jul 2006 Joined the Company; Enterprise Sales Sep 2008 Expert, Enterprise Sales, the Company Sep 2011 Manager, Enterprise Sales, Sales Management Group, the Company Sep 2012 Director, Enterprise Sales, Sales Management Group, the Company Sep 2013 Director, Sales Management Group, the Company Sep 2015 Senior Director, Sales Management Group, the Company Sep 2016 Director, Executive Officer in charge of DC, Cloud and Storage Sales, the Company (current) Jun 2018 Director, Japan Cable Cast, Inc.
1980-08-21
Hiroki KABASAWA
Director, Executive Officer in charge of Cloud and Storage Technology
Apr 2002 Joined S&I Co., Ltd. Jul 2007 Joined the Company; Engineering Group Mar 2010 Manager, Product Engineering Group, Engineering Management Group, the Company Sep 2013 Director, Technical Sales Group, the Company Oct 2016 Senior Director, Technical Design Division, the Company Jun 2018 Director, Japan Cable Cast, Inc. Sep 2018 Director, Executive Officer in charge of Cloud and Storage Technology, the Company (current) Mar 2020 Director, Okinawa Cable Network Co., Ltd.
1978-05-02
Itsuro NISHIMOTO
Director
Oct 1986 Joined Lac Co., Ltd. (former name) Apr 1991 Director, Lac Co., Ltd. Oct 2007 Executive Officer, Lac Co., Ltd. Apr 2009 Director, Managing Executive Officer, Lac Co., Ltd. (former name) Jun 2013 Director, CTO, Lac Co., Ltd. Apr 2014 Director, Senior Managing Executive Officer, CTO, Lac Co., Ltd. Sep 2014 Director, the Company (current) Apr 2017 Representative Director, President, Executive Officer, President and CTO, Lac Co., Ltd. Mar 2018 Representative Director, Security Camp Council (general incorporated association) Jul 2018 Representative Director, President, Executive Officer, President, Lac Co., Ltd. Apr 2020 Representative Director, President, Executive Officer, President and CEO, Lac Co., Ltd. Jul 2020 Representative Director, Japan Cybersecurity Human Resources Career Support Association (general incorporated foundation) Feb 2025 Technical Advisor, Lac Co., Ltd. (current) Sep 2025 Director, Chance Maker Inc. (current)
1958-09-28
Takashi INOUE
Director, Audit and Supervisory Committee Member
Oct 1981 Joined Sanwa Audit Corporation, Tokyo Marunouchi Office (now Deloitte Touche Tohmatsu LLC) May 1985 Registered as Certified Public Accountant Jun 1998 Partner, Tohmatsu Audit Corporation (now Deloitte Touche Tohmatsu LLC) Oct 2018 Opened Takashi Inoue Certified Public Accountant Office (current) Oct 2018 Partner, Kyoei Accounting Office (current) Mar 2019 Director, Audit and Supervisory Committee Member, the Company (current) Mar 2019 Director, Audit and Supervisory Committee Member, Allied Telesis Holdings K.K. (current) Nov 2019 Audit & Supervisory Board Member, Housei Corporation (now HOUSEI Inc.) Mar 2023 Director, Audit and Supervisory Committee Member, HOUSEI Inc. (current)
1956-08-24
Kimiko OGA
Director, Audit and Supervisory Committee Member
Apr 1977 Joined Nippon Telegraph and Telephone Public Corporation Apr 1991 Joined Nippon Telegraph and Telephone Corporation; General Manager, Marketing Division, Service Development Headquarters Jul 2004 General Manager, Information Equipment Department, East Japan Railway? No: Nippon Telegraph and Telephone East Corporation Jul 2005 Deputy Branch Manager, Tokyo Branch, NTT East; Representative Director, President, NTT East-Tokyo Central Jul 2007 Representative Director, Managing Director, General Manager of Comprehensive Training Business Division, NTT Learning Systems Co., Ltd. Jun 2013 Audit & Supervisory Board Member, West Japan Telegraph and Telephone Corporation Jun 2019 Director, SKY Perfect JSAT Holdings Inc. (current) Mar 2020 Director, Audit and Supervisory Committee Member, the Company (current) Apr 2020 Director, Audit and Supervisory Committee Member, Tokyo Suidou Co., Ltd. Jun 2020 Audit & Supervisory Board Member, Alconix Corporation Jun 2021 Audit & Supervisory Board Member, Electric Power Development Co., Ltd. Jun 2022 Director, Audit and Supervisory Committee Member, Electric Power Development Co., Ltd. (current)
1953-10-01
Eijiro IMAI
Director
Oct 2004 Joined Nishimura Tokiwa Law Office (now Nishimura & Asahi) May 2007 Joined Bain Capital Asia LLC Oct 2013 Joined Farallon Capital Japan LLC Jan 2019 Managing Director, Farallon Capital Japan LLC Apr 2020 Director, Ryukyu Football Club Co., Ltd. (current) Mar 2022 Director, the Company (current) Jun 2022 Director, Toshiba Corporation Jan 2024 Partner, Farallon Capital Japan LLC (current)
1980-07-02
Hiroshi MIYAGAWA
Director
Apr 1988 Joined ASCII Corporation Dec 1999 Joined Internet Research Institute, Inc. Apr 2000 Director, IRI Commerce & Technology, Inc. (now Ied Inc.) Oct 2002 Representative Director, IRI Commerce & Technology, Inc. (now Ied Inc.) (current) Sep 2005 Director, Internet Research Institute, Inc. Nov 2012 Director, Enfactory Inc. (current) Jun 2015 Director, Ehon Navi Inc. (current) Mar 2018 Director, Marklines Inc. (current) Jul 2021 Director, SAVAWAY Inc. (current) Nov 2022 Director, F.I.T. Pacific Co., Ltd. (current) Jul 2025 Director, Impress Holdings Inc. (current) Mar 2026 Director, the Company (current)
1965-11-29
Haruko SHIBUMURA
Outside Director
Apr 1987 Joined Chiyoda Life Insurance Mutual Company Aug 1987 Joined Kyushu University Press Foundation Apr 1994 Registered as attorney-at-law (Daini Tokyo Bar Association) Apr 1994 Joined Honma & Komatsu Law Office (now Honma Goudo Law Office) Apr 1999 Partner Attorney, Honma & Komatsu Law Office (now Honma Goudo Law Office) (current) Jun 2015 Outside Audit & Supervisory Board Member, Nichireki Co., Ltd. (now Nichireki Group Co., Ltd.) Jun 2015 Outside Director, Hitachi Koki Co., Ltd. (now Koki Holdings Co., Ltd.) Jun 2018 Outside Director, Tamura Corporation (current) Jun 2019 Outside Director, Nichireki Group Co., Ltd. (current) Jun 2019 Outside Director, Astellas Pharma Inc. Jun 2024 Outside Director, Audit and Supervisory Committee Member, Yokogawa Bridge Holdings Corp. (current) Mar 2026 Director, the Company (current)
1964-12-06
Hidehiko SUZUKI
Director, Audit and Supervisory Committee Member
Aug 1972 Joined Fujitsu Limited Jun 1997 Seconded to Japan Internet Exchange Co., Ltd. (now JPIX Inc.) Dec 1999 Joined Internet Research Institute, Inc.; General Manager, General Affairs and HR Department Apr 2000 Audit & Supervisory Board Member, IRI Commerce & Technology, Inc. (now Ied Inc.) Sep 2014 Audit & Supervisory Board Member, Internet Research Institute, Inc. (current) Sep 2018 Audit & Supervisory Board Member, FinTech A-Eye Ventures Inc. (current) Mar 2019 Audit & Supervisory Board Member, IoT Square Inc. (now ECBO Square Inc.) Nov 2025 Interim Director, Audit and Supervisory Committee Member, the Company Mar 2026 Director, Audit and Supervisory Committee Member, the Company (current)
1946-09-20
Large Shareholding Reports
SilverCape Investments Limited
2026-07-31
25.50%→26.80%
SilverCape Investments Limited
2026-07-10
24.15%→25.50%
SilverCape Investments Limited
2026-06-30
22.70%→24.15%
SilverCape Investments Limited
2026-06-24
21.15%→22.70%
SilverCape Investments Limited
2026-06-11
20.15%→21.15%
SilverCape Investments Limited
2026-05-14
18.65%→20.15%
SilverCape Investments Limited
2026-05-11
17.00%→18.65%
SilverCape Investments Limited
2026-04-10
15.00%→17.00%
SilverCape Investments Limited
2026-03-11
14.00%→15.00%
SilverCape Investments Limited
2026-03-10
12.40%→14.00%
SilverCape Investments Limited
2026-03-04
11.00%→12.40%
SilverCape Investments Limited
2026-02-17
8.55%→11.00%
SilverCape Investments Limited
2026-02-16
6.35%→8.55%
SilverCape Investments Limited
2026-02-09
6.35%
Disclosures
No disclosures
Primary Source Filings
TDnet
2026-08-06
Q2 Earnings Flash
FY ending Dec 2026
EDINET
2026-08-06
Semi-Annual Securities Report
Period: Jan 2026 – Dec 2026
EDINET
2026-07-31
Large Shareholding Report
EDINET
2026-07-10
Large Shareholding Report
EDINET
2026-06-30
Large Shareholding Report
EDINET
2026-06-24
Large Shareholding Report
EDINET
2026-06-11
Large Shareholding Report
EDINET
2026-05-14
Large Shareholding Report
EDINET
2026-05-11
Large Shareholding Report
TDnet
2026-04-30
Q1 Earnings Flash
FY ending Dec 2026
EDINET
2026-04-10
Large Shareholding Report
EDINET
2026-03-19
Annual Securities Report
Period: Jan 2025 – Dec 2025
EDINET
2026-03-11
Large Shareholding Report
EDINET
2026-03-10
Large Shareholding Report
EDINET
2026-03-04
Large Shareholding Report
EDINET
2026-02-17
Large Shareholding Report
EDINET
2026-02-16
Large Shareholding Report
EDINET
2026-02-09
Large Shareholding Report
TDnet
2025-10-31
Q3 Earnings Flash
FY ending Dec 2025
EDINET
2025-08-06
Semi-Annual Securities Report
Period: Jan 2025 – Dec 2025
TDnet
2025-04-30
Q1 Earnings Flash
FY ending Dec 2025
EDINET
2025-03-19
Annual Securities Report
Period: Jan 2024 – Dec 2024
EDINET
2024-08-07
Semi-Annual Securities Report
Period: Jan 2024 – Dec 2024
EDINET
2024-05-02
Quarterly Securities Report
Period: Jan 2024 – Mar 2024
EDINET
2024-03-19
Annual Securities Report
Period: Jan 2023 – Dec 2023
EDINET
2023-11-02
Quarterly Securities Report
Period: Jul 2023 – Sep 2023
EDINET
2023-08-04
Quarterly Securities Report
Period: Apr 2023 – Jun 2023
EDINET
2023-05-02
Quarterly Securities Report
Period: Jan 2023 – Mar 2023
EDINET
2023-03-20
Annual Securities Report
Period: Jan 2022 – Dec 2022
EDINET
2022-11-04
Quarterly Securities Report
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