Flat organization structure with highly motivated specialists.
An audit style in which the engagement partner can be seen at the fieldwork site and has sincere dialogues with the client.
Since its establishment in 1969, Yaesu Audit & Co. has continually strived to seek a deeper understanding of each client's organization and culture through the most important communication, which is an audit fundamental.
A membership agreement with Kreston International Ltd. was concluded in 2012 to respond to the needs of our audit clients which are expanding overseas. As a member of this global network which connects over a 100 countries, we are responding to increased globalization, complexities and evolving accounting regulations in an appropriate manner.
We not only focus on fairness but also flexibility and conducting audits which suit the size and circumstances in a rational matter.
Above all, to contribute to the society at all times and make a small contribution to the infrastructure of the capital markets.
Yaesu Audit & Co. respects each individual's personality, specialties and diversity and continues to enhance the value as an audit firm.

Message from the Chairman

To continue to be an audit firm needed by society.

Since its establishment in 1969, Yaesu Audit & Co. has played a part of infrastructure in maintaining healthy capital markets for over a half century by granting social credibility on the financial statements through audits.

Contributing to Society with Fairness

This is our firm philosophy, which has evolved through eras. With this philosophy, we endeavor to provide high quality audits by striving to pick up the essence of conversations and deepening our understanding of the clients’ situation at each audit site.
In addition to the spread of COVID-19, various factors, such as natural disasters, accidents, incidents and the growing presence of AI in a digital world, have continued to change our world’s order and environment.
Accounting and audit regulations have not been sheltered from these changes. Audit needs have diversified.
Being a member of Kreston International, we incorporate a global vision yet attempt to be agile and respond to subtle changes in the environment while continuing to provide value-added audit services.

Even as the AI and digital era progresses, “People” will always be at the core of audit services.
Yaesu Audit & Co., based on a work environment which values the individuality of each autonomous professional, continues to strive for a healthy and open organization where People can readily express themselves.


Corporate Governance System

Audit partners of YAESU AUDIT & Co. (16 unlimited liability members) directly participate in the firm’s management based on the philosophy of “contribute to the society with fairness.” YAESU AUDIT & Co. maintains discipline within an organization through mutual surveillance and supervision through consultations with the members’ committee, quality control committee and review committee, etc.

Although the recently issued “Principles for Effective Management of Audit Firms” (March 31, 2017) has not been adopted yet, we concur with the principles to improve audit quality, foster an organizational culture which emphasizes continuous improvement and enhance the transparency.

For details on the management operation structure to fairly and appropriately perform the activities of YAESU AUDIT & Co., please refer Here

Audit Quality Report 2019


  1. Philosophy
  2. Culture
  3. Governance & Organization
  4. Quality Management
  5. Human Resources
  6. External Review
  7. Clients
  8. Profile

Company Overview

Yaesu Audit & Co.
Tsutomu Saito
December 15, 1969
Japanese Certified Public Accountants (partners): 16
Japanese Certified Public Accountants (associates): 43
Audit assistant (associates): 3
Others: 3
Total (as of July 2020): 65
Kioicho Building 17F, 3-12 Kioicho, Chiyoda-ku 102-0094
TEL: +81-3-5275-5260 / FAX: +81-3-5275-5262


November 4, 1969
Shigenari Motoyoshi, a Japanese Certified Public Accountant, and four other members applied for establishment of a firm to the Japanese Ministry of Finance
December 15, 1969
Established a Yaesu Jimusho Audit Company at 1-7 Kyobashi, Chuo-ku, Tokyo
June 25, 1977
Relocated offices to 2-12-4 Kyobashi, Chuo-ku, Tokyo
November 25, 1997
Renamed the firm to Yaesu Audit & Co.
June 15, 2007
Relocated offices to 1-5-17 Yaesu, Chuo-ku, Tokyo
June 1, 2012
Became a member firm of Kreston International (Headquarters: United Kingdom)
June 20, 2016
Relocated offices to Kioicho Building, 3-12 Kioicho, Chiyoda-ku, Tokyo