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About us

Grant Thornton Japan is one of Japan’s leading assurance, tax and business advisory firms dedicated to serving the needs of public interest entities and privately held businesses.

Audit & Assurance Services

We approach each audit with sharp thought, straight talk and common sense. In addition to verifying that financial results are fairly presented and meet applicable professional standards, we provide observations and insight into the real performance of your business.

Tax Services

Ambitious organisations need to consider their tax affairs carefully to gain trust and stay ahead of their competitors.

Advisory

As your business grows, our advisory services are designed to help you achieve your goals. Successful growth often means navigating a complex array of opportunities, challenges and risks.