SCSK

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SCSK Corporation
Native name
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Kabushiki-gaisha Esu-Shī-Esu-Kei
FormerlySumitomo Computer Service Corporation (1969–2005)
Sumitomo Computer System Corporation (2005–2011)
Company type
Subsidiary
Template:TYO was (1989-2026)
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ParentSumitomo Corporation
SubsidiariesCRI Middleware
Websitewww.scsk.jp

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Script error: No such module "Nihongo". is a Japanese information technology company headquartered in Tokyo, Japan, offering IT services and computer software. Outside of Japan, It is widely known for its acquisition of Sega in 1984, ended in the sale to Sammy in 2004, through which Sega Sammy Holdings was established.[1]

History

In 1969, Sumitomo Computer Service Corporation was established by Sumitomo Corporation.[2] In 2005, Sumitomo Computer Service Corporation and Sumitomo Electronics Corporation were merged into Sumitomo Computer System Corporation.

Separately, in 1968, CSK Corporation was established by Japanese entrepreneur Isao Okawa[3] in 1968. The acronym CSK was derived from "Computer Service". CSK established CSK Research Institute, later renamed as CRI Middleware, in 1983. At its peak, the company, the largest independent software company in Japan until it being acquired, was called the CSK Group. In the 2000s, its real estate investment business failed, resulting in heavy losses to the company after Okawa's death in 2001.[4][<span title="Script error: No such module "decodeEncode".">clarification needed]

In April 2011, Sumitomo Corporation acquired CSK through a takeover. In October 2011, Sumitomo Computer System Corporation and CSK Corporation went through a statutory merger, in which Sumitomo Computer System absorbed CSK Corporation and was re-branded SCSK Corporation.[5]

At the 2025 Japan Mobility Show, SCSK unveiled a new electric concept car that leans heavily on emerging artificial intelligence technology to create a personalized experience for each driver. The company claims the car to a software-defined vehicle, wherein the emphasis upon customization is within updatable software as compared to rigid hardware.[6]

SCSK was delisted from the Tokyo Stock Exchange in February 2026.[7]

Services

The company offers the services of system integration, cloud computing, information security and produces computer software in Japan, mostly on a B2B basis for enterprises. SCSK Corporation's business type and scope is similar to those of Itochu Techno-Solutions, Uniadex and Mitsui Knowledge Industry, which also specialize in IT services. The company has been listed on the Tokyo Stock Exchange since 1989, then as Sumitomo Computer Service Corporation.[8]

See also

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."Sammy to Buy Sega for $1.8 Billion". The Wall Street Journal. 2004-05-09. Retrieved 2017-12-16.
  2. ^ Page Module:Citation/CS1/styles.css has no content."SCSK". Bloomberg. Retrieved 2017-07-10.
  3. ^ Page Module:Citation/CS1/styles.css has no content."Isao Okawa". Nikkei Business (Japanese). Archived from the original on 2017-08-03. Retrieved 2017-07-10.
  4. ^ Page Module:Citation/CS1/styles.css has no content."Sumitomo Corporation Acquisition of CSK". Toyo Keizai (Japanese). 4 March 2011. Retrieved 2017-07-10.
  5. ^ Page Module:Citation/CS1/styles.css has no content."Sumitomo Computer System and CSK Merger". Impress (Japanese). 24 February 2011. Retrieved 2017-07-10.
  6. ^ Page Module:Citation/CS1/styles.css has no content.Oliva, Jacob (2025-10-25). "A New Japanese Brand Emerges—And It Made a Car in Just 9 Months". Autoblog. Retrieved 2025-10-26.
  7. ^ https://www.scsk.jp/ir_en/news/2026/pdf/20260311e.pdf
  8. ^ Page Module:Citation/CS1/styles.css has no content."SCSK". Bloomberg. Retrieved 2017-07-10.

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