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About NAViS

NAViS team is made up of professionals whose primary objective is to provide a quality and progressive range of accounting, taxation and business advisory services for every clients.

NAViS was founded upon the principle that no challenge is too tough for a team of talented, creative and committed professionals.

Joey Shuhei Miyake, an experienced CPA who worked for one of  Tokyo's largest accounting firms, has built a new firm designed to focus on international tax and accounting challenges.

We deliver a world class experience to each of our clients. As a comprehensive accounting firm, we provide a wide range of services from the research of a new market, to the tailored advisory, and the outsourcing services.

NAViS's primary goal of being the first-trusted business partner is accomplished by providing solutions that addresses not only today’s needs but tomorrow’s plans.

Our best team will address your issues with an approach carefully tailored to your needs.

We can help you overcome the challenges you face, take full advantage of new opportunities and smooth your path to business success.

Our Core Value


NAViS has four core values, Expertise, Communication, Experience and Network as the basis of our service. 

NAVihas four core values, Expertise, Communication, Experience and Network as the basis of our service.

Our multilingual professionals who have profound experience in international business will address your issues by exercising professional expertise in tax and accounting, and collaborating with business partners around the globe.


     Professional expertise in tax and accounting


     High level of multilingual communication


     Profound experience in international business


     Business partners around the globe

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Joey Shuhei Miyake
Managing Director,

Managing Director of Navis Consulting Co.,Ltd.
Managing partner of Miyake Shuhei CPA office
Member of the Japan Institution of Certified Public Accountants
Member of the Committee of International Tax, JICPA 
Tax Advisor, JETRO IBCS
Over 18 years experience in audit, tax and financial consulting services.

Joey has over 18 years experience of providing audit, tax and financial advisory services to a broad range of clients including pharmaceutical, trading, manufacturing, software, entertainment, publishing, real estate companies. After served at Fuji Bank (Mizuho Bank), Joey joined Crowe Horwath Japan and has serviced as audit partner. Joey has experience in Singapore for 4 years as a director at Crowe Horwath Singapore, providing international tax advisory services including transfer pricing to MNCs.

Joey’s professional experience includes:
・Leading teams to perform audits of various companies listed on the stock exchange markets
・Due diligence review in connection with mergers and acquisitions
・Risk controls review and provide recommendations
・International tax advisory to a variety of multinational companies
・Transfer Pricing advisory
・Outsourcing services in accounting, payroll and tax compliance

International Tax Committee, JICPA
Tax Advisor, JETRO IBCS

Japan Institution of Certified Public Accountants
Tokyo Certified Public Tax Accountants' Association

Bachelor of Arts in Environment and Information Studies

Yasunori Kimura
Legal Advisor


Yasunori Kimura has belonged to corporate law firms for 6 years. He was engaged in an extensive range of legal matters for domestic clients and international clients, including dispute resolutions and Japan market entry support for foreign companies. Later, he was seconded to Cabinet Office for 3 years and provided support regarding procurement, national property management, and credit management, etc. Currently, he is mainly engaged in the legal matters for government offices and venture companies, providing legal services ranging from advisory, M&A, to personnel and labor matters, at a law firm in Tokyo. He also focuses on supporting start-ups by joining seminars as a lecturer and counselling for their business.


Political Ethics Hearing Committee for local governments
The Japanese Society for Artificial Intelligence


Daini Tokyo Bar Association (NIBEN), Japan


Bachelor of Laws, 

Waseda University, Japan

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Naoko Mishima

Working in the Japan office's administrative functions at one of the major American semiconductor company, Naoko Mishima has 18 years' experience in business management. Naoko is well versed in business finance and international accounting with her extensive experience in FP&A, intercompany accounting and expat accounting/tax. She has engaged in various global projects including accounting system implementation, process development and improvement. She also has excellent credential as distribution business manager for supporting the overseas business of the distributors.


Bachelor of Arts in Policy Management,

Keio University, Japan

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Sousuke Akutagawa
Legal Advisor

Sosuke Akutagawa has been active as legal advisor for corporations in diverse industries including IT, manufacturer and property management since becoming attorney in 2008. He covers a wide range of practice areas including Bankruptcy, Estate Planning, Divorce and Guardianship. In the practice of bankruptcy, he has great experience as not only agency but also liquidator for both corporate and individual cases. He brings IT professional background to his practice. He joined a IT company after graduate and was engaged in projects for public sector clients.



Bankruptcy Law Group 

Labor Issue Commitee 

Consumer Affairs Commitee


Daini Tokyo Bar Association (NIBEN), Japan


Bachelor of Arts in Policy Management,
Keio University, Japan

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