ICHIYAMA ACCOUNTING OFFICE
Manabu Ichiyama & our office
Accounting expertise connected with practical experience in operations and systems, supporting the work of corporate finance and administration teams.
Manabu Ichiyama
REPRESENTATIVE / JAPANESE CPA
Certified Public Accountant (Japan). Graduate of the School of Political Science and Economics, Waseda University. Passed Japan’s Fundamental Information Technology Engineer Examination.
Experience in financial statement audits and consulting across accounting, business processes and digital systems. Professional expertise, staff, systems and AI are combined to support continuing operations and improvement.
Career
- 2007
- Joined 有限責任あずさ監査法人 (KPMG AZSA LLC); engaged in audit work.
- From 2011
- Worked in consulting on accounting, operations and systems.
- 2019
- Left the firm as a Manager.
- September 2019
- Established ICHIYAMA ACCOUNTING OFFICE.
- November 2020
- Co-founded 株式会社CP ARCS; serves as Representative Director and continues consulting activities.
- 2026 (planned)
- Planned establishment of CP ARCS はじめ監査法人; expected to serve as its representative as a founding member.
Professional experience
Audit work since 2007, including more than ten years as an audit in-charge, and consulting since 2011. Audit and review experience includes manufacturing companies formerly listed on the Tokyo Stock Exchange First Section, as well as services, trading, publishing, medical businesses, special purpose companies and PFI projects. Experience also includes agreed-upon procedures for royalty investigations.
- Standalone and consolidation accounting system implementation
- Management accounting, cost accounting and related systems
- Process improvement, efficiency and RPA implementation
- Finance and administration team design; overseas subsidiary reporting
- Internal controls, IPO preparation and IFRS implementation
- Support for investment decisions and related schedules under IFRS
- Financial due diligence and accounting skills training
Industry experience: automotive and components, electrical equipment, EMS, chemicals, construction machinery, software, apparel, advertising, warehousing and transport, construction, medical businesses, trading, PFI, and special purpose companies for real estate securitization and leasing.
Office details
- Name
- ICHIYAMA ACCOUNTING OFFICE
市山公認会計士事務所 - Representative
- Manabu Ichiyama, Certified Public Accountant (Japan)
- Established
- September 2019
- Address
- GIRAC GINZA 8F, 6-13-9 Ginza, Chuo-ku, Tokyo 104-0061, Japan
- Services
- Accounting and management reporting outsourcing; financial information verification; accounting, operations and systems advisory; transaction services; financial statement audits.
Related entities
Manabu Ichiyama is the representative of ICHIYAMA ACCOUNTING OFFICE and Representative Director of 株式会社CP ARCS, established in November 2020 with him as a co-founder. The contracting entity is identified in the proposal according to the engagement.
Audit engagements are currently accepted by ICHIYAMA ACCOUNTING OFFICE. Following the planned establishment and transfer of engagements in 2026, CP ARCS はじめ監査法人 is expected to accept, contract for and perform financial statement audits. Manabu Ichiyama is one of its five founding members and is expected to serve as its representative. The firm will perform financial statement audits only and will not provide consulting services.
Independence
We do not provide financial statement audits and services that affect independence, such as preparing journal entries or accounting records, to the same company. We explain the available scope after checking independence.
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