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Overview

Information & Communication

Serverworks Co.,Ltd.

Serverworks is a Japan-based AWS-specialized cloud integrator that provides end-to-end cloud services including consulting, design and construction, migration, and managed operations under its 'Cloud Sherpa' total solution offering. The company holds the highest-tier AWS partner certification and resells AWS under a VAR agreement, offering billing agency services with proprietary add-ons such as its Cloud Automator automation tool. In addition to its core AWS business, Serverworks operates a Google Cloud business through its consolidated subsidiary G-gen, and has expanded into generative AI, data analytics, and application development to address growing enterprise cloud adoption needs.

Market Cap

¥22.8B

US$146M

¥10.6B

US$67.7M

Stock¥3,070▼-2.07%

US$1 = ¥156.80 (2026-10-23)

LTM EV/EBITDA

6.8

LTM EV/EBIT

7.3

LTM PER

20.6

LTM PBR

2.1

Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+45.6%pt

Oct 24, 25 – Oct 23, 26StockTOPIX

1Jul 16, 26Q1 FY2027/02 earnings announced

2Oct 16, 26Q2 FY2027/02 earnings announced

MC → EV Bridge

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Performance & Balance

Revenue 5Y (¥B)

EBITDA 5Y (¥B)

Net Income 5Y (¥B)

Capital Structure

95%

EquityD/E 0.06xDebt

Liquidity vs Debt 5Y (¥B)▲ Net Cash

CashInv. Sec.Debt

Shareholders

Top 10 hold 71.8%

as of 2026-08-31 · Source: Annual Securities Report

Ryo OISHI

21.29%

BS Asset Management Co., Ltd.

17.07%

TerraSky Co.,Ltd

13.62%

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

5.18%

NTT Docomo Business, Inc.

3.49%

Takashi HASHIBA

3.02%

BNY GCM CLIENT ACCOUNT JPRD AC ISG (FE-AC; Standing Proxy: MUFG Bank, Ltd.)

2.64%

Hokuetsu Co., Ltd.

2.55%

MSCO CUSTOMER SECURITIES (Standing Proxy: Morgan Stanley MUFG Securities Co., Ltd.)

1.51%

INTERACTIVE BROKERS LLC (Standing Proxy: Interactive Brokers Securities Japan Inc.)

1.39%

Management

5 officers

Ryo OISHI

Representative Director, President and Executive Officer

Apr 1996 Joined Marubeni Corporation Dec 2000 Representative Director, Web Senka Co., Ltd. (now the Company) May 2014 Outside Director, Sky365 Co., Ltd. Dec 2018 Representative Director, President, the Company Mar 2024 Representative Director, President and Executive Officer, the Company (current) Mar 2024 Outside Director, Fujifilm Cloud Co., Ltd. (current) May 2025 Outside Director, World Co., Ltd. (current)

1973-07-20

Takashi HASHIBA

Director, Executive Officer in charge of Solutions

Apr 2000 Joined GFC Co., Ltd. Apr 2006 Joined the Company Mar 2010 Sub-leader, Sales Group, and Product Manager, the Company Oct 2011 General Manager, Sales Department, the Company Mar 2013 General Manager, AWS Business Division, the Company Oct 2013 Director, the Company Sep 2014 General Manager, Cloud Integration Division, the Company Mar 2015 General Manager, Cloud Integration Department, the Company May 2017 Outside Director, Sky365 Co., Ltd. Sep 2017 General Manager, Sales Department, the Company Mar 2018 General Manager, Sales Department 1, the Company Nov 2018 General Manager, Sales Department 2, the Company Mar 2019 General Manager, Sales Department, the Company Jul 2021 Representative Director, G-gen Co., Ltd. Mar 2024 Director, Executive Officer in charge of Solutions, the Company (current) Mar 2024 Outside Director, Fujifilm Cloud Co., Ltd. (current) May 2024 Representative Director, Topgate Co., Ltd. Jul 2024 Topgate Co., Ltd. merged G-gen Co., Ltd. as the surviving company and changed its trade name to G-gen Co., Ltd.; Representative Director, G-gen Co., Ltd. (current)

1978-03-24

Mikiya INOUE

Director, Full-time Audit and Supervisory Committee Member

Apr 1979 Joined Marubeni Corporation Apr 1985 Seconded to Network Information Service Co., Ltd. Apr 1989 Seconded to Marubeni U.K. Ltd. Jun 1994 Seconded to Marubeni Telecom Co., Ltd. (now MX Mobiling Co., Ltd.) Apr 2003 Director, Global Solutions Co., Ltd. (now Arteria Networks Corporation) Apr 2005 Deputy General Manager, Information & Logistics Division, Daiei Information Logistics Co., Ltd. Apr 2007 General Manager, Network Business Department, Marubeni Corporation Apr 2010 Vice President, Marubeni Thailand Ltd. Apr 2011 Senior Managing Director, Marubeni Telecom Co., Ltd. (now MX Mobiling Co., Ltd.) Apr 2012 Marubeni Corporation, Financial, Logistics & Information Division (Osaka) Apr 2013 Director, TMJ Co., Ltd. Apr 2014 Managing Director, Tsunagu Net Communications Co., Ltd. May 2018 Outside Audit & Supervisory Board Member, the Company Jul 2018 Full-time Outside Audit & Supervisory Board Member, the Company May 2021 Outside Director, Full-time Audit and Supervisory Committee Member, the Company (current) Oct 2021 Audit & Supervisory Board Member, G-gen Co., Ltd. Mar 2023 Audit & Supervisory Board Member, Topgate Co., Ltd. Mar 2024 Audit & Supervisory Board Member, Fujifilm Cloud Co., Ltd. (current)

1955-09-08

Yuko TANAKA

Director, Audit and Supervisory Committee Member

Apr 1999 Joined Toyota Motor Corporation Apr 2003 Joined A.T. Kearney K.K. Feb 2006 Joined Jupiter Shop Channel Co., Ltd. Jul 2011 Rejoined A.T. Kearney K.K. as Consumer Goods Practice Manager Apr 2014 Joined Crowdworks Inc. as Executive Officer Mar 2018 Audit & Supervisory Board Member, Spacemarket, Inc. Dec 2019 Director, General Manager of Corporate Planning Office, Crowdworks Inc. Mar 2021 Outside Director, Audit and Supervisory Committee Member, Spacemarket, Inc. May 2021 Outside Director, Audit and Supervisory Committee Member, the Company (current) Oct 2021 Audit & Supervisory Board Member, Kodeal Co., Ltd. Mar 2023 Outside Director, Spacemarket, Inc. (current) May 2023 Representative Director, Yukot Co., Ltd. (current) Jun 2023 Outside Director, Batons Inc. (current)

1975-05-31

Hikari FUJIMOTO

Director, Audit and Supervisory Committee Member

Dec 2006 Joined Tohmatsu Audit Corporation (now Deloitte Touche Tohmatsu LLC) Jan 2013 Principal, Hikari Fujimoto CPA Office (now Hikari CPA & Tax Accountant Office) (current) Nov 2014 Representative Director, B-moo Co., Ltd. (current) Feb 2019 Audit & Supervisory Board Member, J-Grip Co., Ltd. (current) Sep 2019 Audit & Supervisory Board Member, Nonpi Co., Ltd. (now Bondish Co., Ltd.) (current) May 2021 Outside Director, Audit and Supervisory Committee Member, the Company (current) Nov 2021 Director, United Business Consulting Co., Ltd. (current) Dec 2021 Audit & Supervisory Board Member, WDC Co., Ltd. (now KABU & Hoken Partners Co., Ltd.)

1980-11-20

Large Shareholding Reports

Ryo OISHI

2026-01-26

26.30%→19.95%

Annual report (as of 2026-08-31): 21.29%

NTT Docomo Business, Inc.

2026-01-19

3.30%→3.29%

Annual report (as of 2026-08-31): 3.49%

NTT DATA Corporation

2026-01-07

3.34%→3.30%

Correction filing (name/detail fix only) — ratio carried over from the original filing

NTT Docomo Business, Inc.

2026-01-07

3.34%→3.30%

Correction filing (name/detail fix only) — ratio carried over from the original filing

Annual report (as of 2026-08-31): 3.49%

NTT DATA Corporation

2026-01-07

3.34%→3.30%

NTT DATA Corporation

2026-01-06

3.34%

NTT Communications Corporation

2026-01-06

3.34%→3.34%

NTT Communications Corporation

2025-12-26

3.35%→3.34%

NTT Docomo Business, Inc.

2025-12-26

3.34%→3.30%

Annual report (as of 2026-08-31): 3.49%

NTT Communications Corporation

2025-12-26

3.34%

NTT DATA Corporation

2025-12-26

3.85%→3.35%

NTT DATA Corporation

2025-12-26

3.85%

Ryo OISHI

2025-10-31

29.18%→26.30%

Annual report (as of 2026-08-31): 21.29%

Ryo OISHI

2025-10-24

29.18%→26.30%

Annual report (as of 2026-08-31): 21.29%

Disclosures

No disclosures

Primary Source Filings

EDINET

2026-10-15

Semi-Annual Securities Report

Period: Mar 2026 – Feb 2027

Serverworks Co.,Ltd.

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Serverworks Co.,Ltd.

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