JBA(Japan Business Assurance）
| 2006.3 | Japan Business Assurance Co., Ltd. is established. (hereinafter referred as JBA） |
| 2007.3 | JBA Holdings Co., Ltd. is established. |
| 2007.4 | JBA Kansai Co., Ltd. is established. |
| 2008.1 | JBA Research Center opened. |
| 2008.2 | JBA Shanghai is established. |
| 2008.3 | JBA Kansai relocated to Dojima in Osaka. |
| 2009.2 | IFRS Jitsumu Guide Book is published. |
| 2009.4 | JBA Tax Co., Ltd. is established. |
