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PwC Japan LLC (formerly PwC Arata)

Confidence: Likely Updated 2026-05-24 Review by 2026-11-20 Sources 6 Machine-translated Original (JA)
#JapanFG#audit#big4#assurance#accounting#pwc
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TL;DR

PwC Japan LLC (formerly: PwC Arata LLC) is one corner of the Big 4 lineage and the Japan member firm of the global PricewaterhouseCoopers (PwC). It has an origin that formed the core of the history of restructuring in Japan’s audit industry —— 2006-07 ChuoAoyama Audit Corporation business-suspension penalty (the Kanebo accounting-fraud case) → establishment of Arata Audit Corporation . Within the Big 4 , its number of listed audit clients is smaller than the other 3 firms, but it differentiates through FinTech / Web3 / NFT strategy-consulting linkage and the PwC global “Time for trust” crypto-asset framework . In 2023-04 it was integrated into the PwC Japan brand (merging with the former Kyoto Audit Corporation) .

Wiki route

This entry sits under financial-regulators INDEX. Read it alongside Deloitte Touche Tohmatsu LLC (Deloitte Touche Tohmatsu) and Ey Shinnihon for peer Big 4 audit context, and Financial licenses for the regulatory boundary of the Certified Public Accountants Act / audit quality management. The CPAAOB supervisory context falls under FSA Supervision Bureau and Strategy Development and Management Bureau (FSA Strategy Development and Management Bureau).

1. Firm overview

  • Official name: PwC Japan LLC (formerly: PwC Arata LLC)
  • English name: PricewaterhouseCoopers Japan LLC
  • Legal form: Limited liability audit corporation
  • Headquarters: Otemachi, Chiyoda-ku, Tokyo
  • Member network: PricewaterhouseCoopers International Limited (PwCIL) (headquartered in London)
  • Group entities:
    • PwC Consulting LLC
    • PwC Advisory LLC (FAS / M&A)
    • PwC Tax Corporation

2. History

Year/MonthEvent
2005-09Kanebo accounting-fraud case — criminal-liability issue of the CPAs involved at ChuoAoyama Audit Corporation ★
2006-07The FSA imposed a 2 -month business-suspension penalty on ChuoAoyama Audit Corporation → mass outflow of audit clients
2006-09Establishment of Arata Audit Corporation (newly established as PwC’s global Japan member, separated from ChuoAoyama)
2006-09The former ChuoAoyama was renamed Misuzu Audit Corporation → headed toward dissolution in 2007
2008-07Conversion to limited liability under the amended Certified Public Accountants Act → PwC Arata LLC
2010sLed in FinTech / Web3 field consulting
2023-04Integration into the PwC Japan brand (the course of the Arata + Kyoto Audit Corporation merger)

FinTech / crypto assets

Banking / insurance / securities

  • Foreign-affiliated finance — foreign-bank Tokyo branches / part of foreign-affiliated securities

Sustainability assurance

  • ESG / SSBJ / ISSB-related assurance engagements

4. Major listed-FG client relationships (public basis)

Regarding the financial-institution audit-client relationships of the PwC lineage (former ChuoAoyama + Arata + current PwC Japan), the range confirmable on a public basis:

Note: Since the major accounting-fraud cases of the ChuoAoyama era (Kanebo, Ashikaga Bank, etc.), the PwC lineage’s financial-institution audit portfolio has gone through significant change . The current auditor for each individual listed-FG client is confirmable only through primary verification in EDINET, and this wiki refrains from a confident enumeration (uncertain past/present client enumerations are isolated in .opinions/JapanFG/pwc-aarata.md).

5. Regulation / supervision

  • Governing law: Certified Public Accountants Act
  • Registration: Japanese Institute of Certified Public Accountants (JICPA)
  • Supervision: the FSA’s Certified Public Accountants and Auditing Oversight Board (CPAAOB) conducts quality-management reviews / inspections

Past disciplinary history (including the ChuoAoyama era) ★

  • 2006-07 ChuoAoyama Audit Corporation business-suspension 2 -month penalty (originating from the Kanebo case)
    • One of the largest-class disciplinary cases in Japan’s audit history
    • Mass client outflow → transfer to Arata Audit Corporation → renamed Misuzu Audit Corporation → dissolution
  • 2007 dissolution of Misuzu (former ChuoAoyama) → confirmation of the industry’s Big 4 structure (Shin Nihon / Tohmatsu / Azsa / Arata)

Note: Because a comprehensive assessment of the disciplinary history after Arata cannot be confirmed on a public basis, it is isolated in .opinions/JapanFG/pwc-aarata.md. The specific facts of CPAAOB inspections / penalties should be primarily confirmed against the Board’s published materials.

6. Competitive landscape

Big 4Domestic brandStrength axis (public basis)
PwCPwC Japan (formerly Arata)FinTech / Web3 / global PwC linkage
EY[[financial-regulators/ey-shinnihonEY 新日本]]
Deloitte[[financial-regulators/deloitte-touche-tohmatsuトーマツ]]
KPMG[[financial-regulators/kpmg-azsaあずさ]]

Tier 2: Taiyo Grant Thornton, BDO Sanyu Audit Corporation .

Sources

[!info] Verification status confidence: likely (based on v1.0 public sources, 2026-05-24). The flow of the ChuoAoyama case, the establishment of Arata, and the PwC Japan integration is highly reliable on a public basis. The auditor for each specific client should be confirmed against EDINET primary materials on each occasion.