- Jan.2024
- Relocated corporate headquarters to Toranomon, Minato-ku, Tokyo.
- Oct.2013
- Changed the company's name to SB Media Holdings Corp.
- Jun.2011
- Relocated corporate headquarters to Roppongi, Minato-ku, Tokyo.
- Mar.2009
- Acquired 100% ownership of Realize Mobile Communications Corp.
- Sep.2008
- Acquired a majority of the shares of SOFTBANK Human Capital CORP.
- Mar.2008
- Acquired a majority of the shares of COMEL.
- Jan.2006
- Absorbed the subsidiary SBMM Holdings Corp.
- Oct.2005
- Regarding three subsidiaries, SOFTBANK Media And Marketing Corp. merged with SOFTBANK Publishing Corp. and SBMM Creative Corp., and changed the corporate name to SOFTBANK Creative Corp.
- Aug.2005
- SOFTBANK Media Marketing Holdings Corp. was established by share transfer of SOFTBANK Media And Marketing Corp. , SOFTBANK Publishing Corp. and SBMM Creative Corp.