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Overview

Services

E-Guardian Inc.

E-Guardian is a comprehensive internet security company providing end-to-end services including content moderation (post monitoring), customer support, debugging, and cybersecurity solutions. The company serves over 1,000 clients across gaming, advertising, social media, fintech, and enterprise sectors, offering both human-operated and AI-powered services such as its proprietary posting monitoring system 'kotonashi' and WAF product 'SiteGuard.' Its competitive strengths lie in its ability to deliver integrated, one-stop internet security and trust & safety services at industry-leading scale, processing over 20 million posts monitored monthly.

Market Cap

¥19.8B

US$126M

¥9.20B

US$58.7M

Stock¥1,708▲+0.29%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

7.5

LTM EV/EBIT

8.1

LTM PER

27.1

LTM PBR

1.6

Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-27.1%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

MC → EV Bridge

AI Briefing

Generating insights…

Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

100%

EquityD/E 0.00xDebt

Liquidity vs Debt 5Y (¥B)▲ Net Cash

CashInv. Sec.Debt

Shareholders

Top 10 hold 64.4%

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

CHANGE Holdings,Inc.

52.51%

The Master Trust Bank of Japan, Ltd. (Trust Account)

4.35%

Yasuhisa TAKAYA

2.82%

Custody Bank of Japan, Ltd. (Trust Account)

2.57%

Makoto MIYASAKA

0.62%

Yutaka MIZOBE

0.57%

E-Guardian Inc. Employee Stock Ownership Association

0.27%

Seita SASAKI

0.26%

Custody Bank of Japan, Ltd. (Trust Account 4)

0.23%

Mao OKAME

0.22%

Management

6 officers

Yasuhisa TAKAYA

Representative Director, President and CEO

Mar 1993 Joined Johnson & Johnson K.K. Aug 1995 Joined Kyocera Corporation Nov 2005 Appointed Division Manager of the Company Jan 2006 Appointed Division Manager and Head of Corporate Planning Office of the Company Apr 2006 Appointed Representative Director, President and CEO of the Company (current) Aug 2021 Appointed Outside Director, Like Co., Ltd. Apr 2023 In charge of Information Systems Department of the Company (current) Representative Director, EG Secure Solutions Co., Ltd. (current) Oct 2023 In charge of Sales Department of the Company Dec 2023 Appointed Representative Director, President, Cyriel Holdings Co., Ltd.

1968-08-23

Shoko MINEO

Managing Director, COO and CFO; in charge of Sales, Public Relations/Marketing, Account Relations, General Affairs, Accounting, Human Resources and Information Systems Departments

Apr 1995 Joined The Nippon Credit Bank, Ltd. (now Aozora Bank, Ltd.) Feb 2002 Joined Tohmatsu & Co. (now Deloitte Touche Tohmatsu LLC) Jul 2005 Joined Cubenet Co., Ltd. Oct 2005 Registered as Certified Public Accountant Nov 2008 Joined Nitori Holdings Co., Ltd. Jan 2017 Joined Otsuka Pharmaceutical Co., Ltd. Feb 2023 Appointed Director and CFO, Linkage Co., Ltd. Apr 2024 Appointed Senior Director, Accounting Department of the Company Dec 2024 Appointed Director of the Company; in charge of General Affairs, Accounting and Human Resources Departments (current) Oct 2025 Appointed Managing Director, COO and CFO of the Company (current)

1971-09-24

Tomohiro NODA

Director; in charge of Corporate Planning Department

Apr 2007 Joined Change, Inc. (now Change Holdings, Inc.) Apr 2010 Transferred to CSB Co., Ltd. Jul 2015 Rejoined Change, Inc. (now Change Holdings, Inc.) Dec 2019 Appointed Executive Officer, Change, Inc. Apr 2023 Appointed Representative Director and President, Executive Officer, Change, Inc. (current) Jun 2024 Appointed Director, Interactive Solutions Co., Ltd. (current) Jul 2025 Appointed Senior Executive Officer, Change Holdings, Inc. (current) Oct 2025 Appointed Executive Officer of the Company (current) Dec 2025 Appointed Director of the Company (current)

1984-10-29

Masatake KUSUMI

Director (Full-time Audit and Supervisory Committee Member)

Apr 1991 Joined Fujita Corporation Sep 2001 Joined Gasho Co., Ltd. Dec 2006 Joined ShinNihon Audit Corporation (now EY ShinNihon LLC) Aug 2010 Registered as Certified Public Accountant Aug 2016 Established Masatake Kusumi CPA Office, Representative (current) Dec 2017 Appointed Director (Full-time Audit and Supervisory Committee Member) of the Company (current) Jun 2020 Appointed Outside Director, Toa Road Construction Co., Ltd. (current)

1968-02-17

Shoko MINEO

Director (Audit and Supervisory Committee Member)

Oct 2002 Joined Chuo Aoyama Audit Corporation May 2006 Registered as Certified Public Accountant Jul 2007 Joined Tsuji Hongo Tax Corporation Aug 2010 Established Mineo Tax & Accounting Office (now Mineo Accounting Office), Representative (current) Dec 2010 Registered as Certified Tax Accountant Oct 2011 Appointed Auditor, Japan Medical Export Cooperation Organization (current) Nov 2011 Appointed Representative Director, Business Balance Co., Ltd. (current) Dec 2013 Appointed Outside Auditor of the Company Dec 2015 Appointed Director (Audit and Supervisory Committee Member) of the Company (current) May 2017 Appointed Outside Auditor, Baby Calendar Co., Ltd. (current) Jan 2018 Appointed Outside Auditor, N.C.N. Co., Ltd. (current) Dec 2020 Appointed Outside Auditor, Ohisama Holdings Co., Ltd. (current) Jan 2023 Representative Partner, AMA Partners Tax Corporation (current)

1977-02-14

Takashi KAWAMURA

Director (Audit and Supervisory Committee Member)

Jan 2015 Joined Atago Law Office Jul 2019 Joined Wadakuramon Law Office (current) Dec 2023 Appointed Director (Audit and Supervisory Committee Member) of the Company (current)

1987-07-23

Large Shareholding Reports

Yasuhisa TAKATANI

2025-11-19

6.36%→2.78%

Annual report (as of 2026-03-31): 2.82%

Change Holdings, Inc.

2025-11-19

48.98%→51.74%

Annual report (as of 2026-03-31): 52.51%

Yasuhisa TAKATANI

2025-11-12

6.41%→6.36%

Annual report (as of 2026-03-31): 2.82%

Disclosures

No disclosures

Primary Source Filings

TDnet

2026-08-03

Q3 Earnings Flash

FY ending Sep 2026

E-Guardian Inc.

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E-Guardian Inc.

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