The TUS School of Management was ranked 4th in Japan according to the 2016 Eduniversal Business School Ranking.
This ranking, which is conducted by French consulting and rating agency SMBG, utilizes a committee comprised of international experts who evaluate and rank business schools worldwide according to their degree of international accreditation (AACSB, EQUIS, etc.), international influence and the program content they offer.
Out of the 154 countries surveyed in the most recent ranking, the TUS School of Management was chosen among the top 1,000 business schools in the world as well as ranked 4th among all business schools in Japan, earning 4 Palmes (4 stars) as a "top business school with significant international influence."
Eduniversal Business Schools Ranking:
http://www.eduniversal-ranking.com/search/index?keyword=japan