1969 October
Established as Sumisho Computer Service Corporation (SCS) in Osaka, with capital of ¥50 million. Head office in Kitahama, Higashi-ku.
1970 December
Opened Tokyo branch in Kanda-Mitoshirocho, Chiyoda-ku.
1973 June
Opened Osaka Center No. 1.
1975 December
Established as a subsidiary of Sumitomo Corporation, with capital of ¥50 million.
1976 March
Opened Osaka branch (now Kansai Office).
1979 August
Opened Nagoya sales office (now Chubu Office)
1980 January
Implemented two-headquarters structure, with Tokyo branch upgraded to status of head office.
1987 October
Established Sumisho Computer Service (USA), Inc. (now Sumisho Computer Systems (USA), Inc.), in Los Angeles, California.
1983 August
Opened Fukuoka sales office (now Kyushu Office)
1988 February
Opened Tokyo Center No. 1.
1988 February
Opened Hiroshima sales office (now Hiroshima Branch Office)
1988 May
Absorbed Nippon Energy, Inc.
1989 February
Listed on the Second Section of the Tokyo Stock Exchange.
1989 March
Recognized by the Ministry of International Trade and Industry (now the Ministry of Economy, Trade and Industry) as a qualified systems integrator.
1989 June
Registered with the Ministry of Posts and Telecommunications (now the Ministry of Internal Affairs and Communications) as a general Type II telecommunications carrier.
1989 December
Established Sumisho Computer Service (Miyazaki) Corporation (now SCS Solutions Inc.).
1990 May
Established Sumisho Computer Service (Europe) Ltd. (now Sumisho Computer Systems (Europe) Ltd.) in London, England.
1991 September
Listed on the First Section of the Tokyo Stock Exchange.
1992 January
Opened Tokyo Center No. 2.
1992 October
Changed corporate name to Sumisho Computer Systems Corporation.
1992 April
Absorbed Sumisho Electronic Systems, Inc.
1993 October
Opened Osaka Center No. 2.
1997 September
Tokyo Center No. 1 and business units connected to the Tokyo Head Office are the first operations in Japan to acquire ISO 9001 and TickIT certification for IT outsourcing services.
1997 September
Obtained approval from the Japan Securities Dealers Association and listed shares over the counter.
1997 December
Opened Hamamatsu sales office.
1998 November
Granted Privacy Mark by the Japan Information Processing Development Corporation for efforts to properly protect personal data.
1999 April
Opened the Nagoya Sales Office (now Chubu Office).
2000 December
Opened Tohoku sales office.
2001 October
Opened netXDC (network eXchange attached Data Center), a next-generation data center, based on an original concept promoted by SCS.
2001 July
Acquired ISO 14001 certification.
2001 August
Established Tsukuba sales office.
Established Kikukawa technical center (now Distribution Center)
2002 November
Combined Osaka Center No. 1 and Osaka Center No. 2 reestablished the integrated operations as the netXDC Osaka Center.
2003 February
Merged with SC ComTex Inc.
2003 March
Absorbed SC Hightech Corporation.
2003 August
Absorbed Cross Beam Networks Corporation.
2003 September
Absorbed Sumisho Net Solutions Corporation.
2004 May
Established Curl, Incorporated, in Cambridge, Massachusetts.
2004 October
Opened the Kyoto branch (now the Kansai Office Industrial System Sales Division).
2004 December
Merged SCS Networks Corporation and SC Infoteck Corporation and renamed the new entity SCS IT Management Ltd.
2004 March
Absorbed NEXUS, Inc.
2005 March
Acquired both ISMS Certification Standard Ver. 2.0 and BS7799-2:2002 Certification for information security management systems.
2006 January
SUMI-ELE System Co., Ltd., and Sumisho Computer Systems (Kyushu) Corporation merged and resulting company named SCS Solutions Inc.
Acquired ISO 14001 certification.
2006 June
Absorbed SCS IT Management.
2007 February
Established Sumisho Computer Systems (Shanghai) Limited.
2007 March
Established Sumisho Computer Systems (Dalian) Co., Ltd.
2007 August
Turned Allied Engineering Corporation into a subsidiary.
2007 November
Established Sumisho Computer Systems (Asia Pacific) Pte. Ltd.
2008 July
Absorbed Billingsoft Japan Co., Ltd.
2009 April
Assumed a portion of the business of SCS Solutions Inc. by way of corporate separation.
2010 April
Absorbed SCS Business Support Inc.
2010 June
Absorbed Curl International Corportion
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