About Youichi Oda, Founder and Company Representative


Youichi Oda

ODA C.P.A. Office


Certified Internal Auditor (CIA)

Japanese Certified Public Accountant
Japanese Certified Public Tax Accountant

Information Systems Auditor (CISA)
Certified Fraud Examiner (CFE)


The Institute of Internal Auditors Japan(1577253)

The Japanese Institute of Certified Public Accountants Tokyo Chapter (028596)
Japan Federation of Certified Public Tax Accountants' Associations (136897)
ISACA Tokyo Chapter (8221)
Association of Certified Fraud Examiners Japan Chapter (703292)

Background and Education 




Born 5 Sep, 1978 in Satsumasendai City, Kagoshima Prefecture, raised in Nagayocho, Nagasaki Prefecture
Bachelor of Commerce, Chuo University, Tokyo, JAPAN (Mar 2003)
Passed Japanese CPA exam (Nov 2004)

Apr 2005 – Jul 2006

Musashino Tax Office (Tokyo), National Tax Agency of Japan 
Corporate Taxation Department

-  3 months’ professional training on national taxation
-  Internal administration on corporate tax, indirect taxes such as consumption tax, and withholding tax
-  Assistance in tax filing
-  Tax investigations

Sep 2006 – Aug 2017
Ernst & Young ShinNihon LLC
Sep 2006 – Nov 2012 Domestic Audit Division (Auditor/Snr Auditor)
Dec 2012 – Aug 2017 IPO Support Division (Manager)

Financial audit and internal controls audit for listed and non-listed Japanese companies
- External audit of quarterly and annual financial statements (consolidated/non-consolidated)
- External audit of securities reports and annual reports
- External audit of internal control frameworks
- Industry coverage: IT (development/sales), pharmaceutical, heavy industry, media, human resources, chemical, machinery, gaming, real estate, financial services, etc.

IPO support

- Involved in 3 successful IPOs (2 domestic and 1 overseas)
- Financial audit and advisory on IPO, accounting, taxation, internal control, business planning, and capital strategy
- Relationship management with banks and venture capital firms
- Worked with: university startups (iPS, medical devices, technology), IT (Bitcoin), real estate, jewelry, funeral industry, etc.
- Provided training for R&D-based startups

Other responsibilities included

- Mentor at Tokyo University Entrepreneur Seminar (start-up support)
- CFO outsourcing project
- Business planning consulting for startups


“Practical Considerations on IPO by industry / The environment surrounding biotechnology startups” (Jun 2013)
“Constructing Audit Systems with Artificial Intelligence (AI) and Integration with Accounting Systems” (Oct 2016)

Areas of Interest Audit automation, Computer-aided audit techniques (CAATs), and process improvement
Tax litigation
Biotechnology (low molecular technology, genomics, iPS, etc)
Artificial Intelligence (AI) in transportation and warehouse management
Virtual currencies
RPA (Robotic Process Automation, from an audit perspective)
Management styles, organization management and HR strategies in Japan
Success factors for technology startups



代表 小田陽一
代表 小田陽一


東京都中央区日本橋兜町1番7号 デュオ・スカーラ兜町301





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