Overview
Services

SERAKU Co.,Ltd.

Ceraku Group provides a broad range of IT services across three business segments: Digital Integration (DI), Midori Cloud, and Mechanical Design Engineering. The company's core model involves recruiting IT-inexperienced candidates and training them into deployable engineers within 1–2 months through its proprietary 'Ceraku Passion University' education program, enabling scalable delivery of IT infrastructure construction/operation, cloud/DX solutions, and on-site engineering services to corporate clients. With over 3,000 in-house engineers and partnerships with more than 1,000 business partners, the company serves clients ranging from SMEs to large enterprises, with growing focus on AI-integrated business models and primary industry DX through its Midori Cloud platform.

Market Cap
¥19.7B
US$126M
EV
¥11.1B
US$70.7M
Stock¥1,523▲+0.20%
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
3.8
x
LTM EV/EBIT
3.9
x
LTM PER
10.6
x
LTM PBR
1.9
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▼-21.6%pt
1001
Oct 24, 25 – Oct 23, 26StockTOPIX
1Oct 16, 26Full-year FY2026/08 earnings announced
MC → EV Bridge
19.7BUS$126MMarket Cap0.00BUS$0.02M+ Debt8.63BUS$55.1M− Cash0.00BUS$0.02M− Inv. Sec.11.1BUS$70.7MEV
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Performance & Balance
Revenue 5Y (¥B)
17.9US$114M'22/820.9US$133M'23/822.2US$142M'24/824.8US$158M'25/825.5US$163M'26/8
EBITDA 5Y (¥B)
0.93US$5.95M'22/81.98US$12.7M'23/82.32US$14.8M'24/82.60US$16.6M'25/82.93US$18.7M'26/8
Net Income 5Y (¥B)
0.97US$6.16M'22/81.47US$9.39M'23/81.58US$10.0M'24/81.71US$10.9M'25/81.85US$11.8M'26/8
Capital Structure
100%
EquityD/E 0.00xDebt
Liquidity vs Debt 5Y (¥B)▲ Net Cash
CashInv. Sec.Debt
5.78US$36.8M0.75US$4.78M'22/86.98US$44.5M0.24US$1.56M'23/86.90US$44.0M0.09US$0.55M'24/87.77US$49.6M0.03US$0.18M'25/88.64US$55.1M'26/8
Shareholders
Top 10 hold 71.3%
1
Tatsumi MIYAZAKI
35.74%
2
Hiromi MIYAZAKI
8.30%
3
Miyazaki Co., Ltd.
7.13%
4
Miyazaki Co., Ltd.
5.34%
5
The Master Trust Bank of Japan, Ltd. (Trust Account)
4.55%
6
SMBC Trust Bank Ltd. (Trustee of Specified Securities Trust)
4.31%
7
STATE STREET BANK AND TRUST COMPANY (Standing Proxy: Mizuho Bank, Ltd.)
1.87%
8
SERAKU Co.,Ltd. Employee Stock Ownership Association
1.41%
9
CACEIS BK ES IICS CLIENTS (Standing Proxy: The Hongkong and Shanghai Banking Corporation Limited, Tokyo Branch)
1.39%
10
STICHTING DEPOSITARY ASCENDER GLOBAL VALUE FUND (Standing Proxy: Mizuho Bank, Ltd.)
1.26%
Management
5 officers
Tatsumi MIYAZAKI
Representative Director
As stated in the "Brief Biography" in Section (2), Status of Directors, 1(a) above
1957-02-26
Hiromi MIYAZAKI
Senior Managing Director, Senior Executive Officer (Note 1)
Same as above
1962-06-05
Tomoharu KOSEKI
Managing Director, Senior Executive Officer
Same as above
1975-06-24
Koji NISHIMURA
Director (Note 2)
Same as above
1965-10-06
Futoshi MIURA
Director (Note 2)
Oct 1986: Joined Chuo Accounting Office Aug 1991: Registered as Certified Public Accountant Aug 2007: Partner, ShinNihon Audit Corporation (currently Ernst & Young ShinNihon LLC) Aug 2010: Senior Partner, ShinNihon Audit Corporation (currently Ernst & Young ShinNihon LLC) Jul 2011: Director, Japan Venture Research Society (General Incorporated Association) Mar 2014: Representative Coordinator, Listed Company Directors Governance Forum (current) Feb 2024: Representative, M's GA Partners (current) May 2024: Outside Director, Uokin Co., Ltd. (current) Jun 2024: Outside Director, MetaMoJi Corporation (current) Sep 2024: Outside Audit & Supervisory Board Member, Lips Co., Ltd. (current) Jan 2025: Senior Fellow, Accounting Education and Training Institute (General Incorporated Foundation) (current) Apr 2025: Member, Expert Committee for Monitoring of National Stadium Operations Project (current) Jun 2025: Vice President, Tokyo Chapter, Japanese Institute of Certified Public Accountants (current) Jul 2025: Director, Japanese Institute of Certified Public Accountants (current) Principal concurrent positions: Representative, M's GA Partners; Audit & Supervisory Board Member, Lips Co., Ltd.
1961-08-07
Large Shareholding Reports
Hiromi MIYAZAKI
2026-09-30
8.47%→8.03%
Annual report (as of 2026-02-28): 8.30%
FMR LLC
2026-06-23
—
FIAM LLC
2026-06-23
3.58%→4.41%
FIAM LLC
2026-06-09
3.58%
FMR LLC
2026-06-09
5.13%
Correction filing (name/detail fix only) — ratio carried over from the original filing
FMR LLC
2026-05-22
5.13%→6.59%
FMR LLC
2026-04-07
5.13%
Disclosures
No disclosures
Primary Source Filings
TDnet
2026-10-15
Full-Year Earnings Flash
FY ending Aug 2026
EDINET
2026-09-30
Large Shareholding Report
TDnet
2026-07-15
Q3 Earnings Flash
FY ending Aug 2026
EDINETAmended
2026-06-23
Change Report
EDINET
2026-06-23
Large Shareholding Report
EDINETAmended
2026-06-09
Change Report
EDINET
2026-06-09
Large Shareholding Report
EDINET
2026-05-22
Large Shareholding Report
EDINET
2026-04-14
Semi-Annual Securities Report
Period: Sep 2025 – Aug 2026
EDINET
2026-04-07
Large Shareholding Report
TDnet
2026-01-14
Q1 Earnings Flash
FY ending Aug 2026
EDINET
2025-11-20
Annual Securities Report
Period: Sep 2024 – Aug 2025
TDnet
2025-07-15
Q3 Earnings Flash
FY ending Aug 2025
EDINET
2025-04-14
Semi-Annual Securities Report
Period: Sep 2024 – Aug 2025
TDnet
2025-01-14
Q1 Earnings Flash
FY ending Aug 2025
EDINET
2024-11-26
Annual Securities Report
Period: Sep 2023 – Aug 2024
EDINETAmended
2024-10-17
Amended Securities Registration Statement
EDINET
2024-10-15
Securities Registration Statement
EDINET
2024-07-12
Quarterly Securities Report
Period: Mar 2024 – May 2024
EDINET
2024-04-12
Quarterly Securities Report
Period: Dec 2023 – Feb 2024
EDINET
2024-01-12
Quarterly Securities Report
Period: Sep 2023 – Nov 2023
EDINET
2023-11-27
Annual Securities Report
Period: Sep 2022 – Aug 2023
EDINET
2023-07-14
Quarterly Securities Report
Period: Mar 2023 – May 2023
EDINET
2023-04-14
Quarterly Securities Report
Period: Dec 2022 – Feb 2023
EDINET
2023-01-13
Quarterly Securities Report
Period: Sep 2022 – Nov 2022
EDINETAmended
2022-11-29
Amended Annual Securities Report
EDINET
2022-11-29
Annual Securities Report
EDINET
2022-07-15
Quarterly Securities Report
EDINET
2022-04-14
Quarterly Securities Report
EDINET
2022-01-14
Quarterly Securities Report
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