Toshiya joined KPMG Minato Audit Corporation in 1986. After his secondment to KPMG USA for three years from 1990, he has been involved as an audit engagement partner for a major general trading company and global manufacturers, among others. In the advisory area, he engaged in a number of projects such as business improvements, performance improvement, governance and M&A. He concurrently works as Executive Board Member of KPMG AZSA, and President and CEO of KPMG Consulting. In October 2018, He was appointed as Chairman, KPMG Japan and Chairman of Global Japanese Practice. Currently, he is a member of the KPMG Global Board and Council Meetings and AsPac Board Meeting.