1975
July
Yuko Audit Corporation founded
1979
June
Naniwa Audit Corporation founded
1987
March
Shimbashi Audit Corporation founded
1997
July
Pegasus Audit Corporation founded
2007
July
Naniwa Audit Corporation merges with Yuko Audit Corporation, and the trading name changes to Osaka Audit Corporation
2012
February
Osaka Audit Corporation joined PKF International
2014
July
Osaka Audit Corporation, Shinbashi Audit Corporation, and Pegasus Audit Corporation merge and the trading name changes to PKF Hibiki Audit Corporation
