Corporate History

Sumisho Computer Systems Corporation CSK Corporation
1968
  Oct.Computer Services Corporation established in Okawacho, Higashi-ku (now Kitahama, Chuo-ku), Osaka-shi, Osaka
1969
Oct.Sumisho Computer Service Corporation established in Kitahama, Higashi-ku (now Kitahama, Chuo-ku), Osaka-shi, Osaka  
1982
  Jun.Listed in the Second Section of the Tokyo Stock Exchange
1985
  Mar.Shifted to the First Section of the Tokyo Stock Exchange
1987
Oct.Established Sumisho Computer Service (USA), Inc. (now SCSK USA Inc.) Jan.Company name changed to CSK Corporation
1988
Feb.Tokyo Center No. 1 opened (now netXDC Tokyo Center 1)  
1989
Feb.Shifted to the Second Section of the Tokyo Stock Exchange  
1990
May.Established Sumisho Computer Service (Europe) Ltd. (now SCSK Europe Ltd.)  
1991
Sep.Listed on the First Section of the Tokyo Stock Exchange  
1992
Jan.Tokyo Center No. 2 opened (now netXDC Tokyo Center 2)
Oct.Company name changed to Sumisho Computer Systems Corporation
 
2002
  Oct.Data Center opened in Inzai, Chiba (now netXDC Chiba Center)
2005
Aug.Merged with Sumisho Electronics Co., Ltd. Oct.Shifted to a holding company structure Company name was changed to CSK Holdings Corporation
2006
  Dec.Acquired data center facilities in Sanda, Hyogo (now netXDC Sanda Center)
2007
Feb.Established Sumisho Computer Systems (Shanghai) Ltd. (now SCSK Shanghai Limited)Nov.Established Sumisho Computer Systems (Asia Pacific) Pte. Ltd. (now SCSK Asia Pacific Pte. Ltd.)  
2010
  Oct.Shifted from a pure holding company to an operating holding company Several Group companies merged with CSK Holdings Corporation, the surviving company name was changed to CSK Corporation
SCSK
2011
Oct.Sumisho Computer Systems Corporation merged with CSK Corporation, with SCS as the surviving company and the new company named SCSK Corporation
2012
Jun.Main business headquarter changed to Toyosu, Koto-ku, Tokyo
2015
Apr.netXDC Chiba Center 2 Opened in Inzai, Chiba