History
| 1966 | Established under the name Computer Applications Co., Ltd. as Japan’s first independent software company |
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| 1971 | Invested in Nippon System Service Co., Ltd. (SSK) SSK changed business focus to outsourcing, becoming the first such company in Japan. |
| 1973 | Established System Utility Co., Ltd. (SUC) |
| 1986 | Formally entered the system consulting business |
| 1988 | Received certification under the newly established System Integrator Registration and Certification System |
| 1989 | Established CAC America in New York |
| 1990 | Established CAC Europe in London |
| 1994 | CAC, SSK and SUC merged operations to form CAC Corporation |
| 1995 | Certified as a system operation service provider by the Ministry of International Trade and Industry (MITI) |
| 1996 | Entered the business of Integrated Management services for distributed systems |
| 1999 | Became a public company |
| 2000 | Acquired share of ARK System Co.,Ltd. Established CAC Shanghai Corporation in Shanghai, China |
| 2002 | Acquired share of GoldenTech Computer Technology (Suzhou) Co., Ltd. Invested in YUASA KNOWLEDGE INDUSTRY Co., Ltd.(Presently YUASA SYSTEM SOLUTIONS Co., Ltd.) |
| 2003 | Acquired share of ORBIS CORPORATION |
| 2005 | Moved the head office to Nihonbashi-Hakozaki-cho, Chuo-ku, Tokyo |
| 2008 | Opened Higobashi office in Osaka City |
| 2014 | Switched to a holding company structure and split the company into CAC Holdings Corporation (holding company) and CAC Corporation (operating company) |
| 2019 | Opened a new office in Nagasaki City |
| 2022 | Established CAC Consulting & Technology Singapore Pte. Ltd. |
| 2024 | Acquired share of CIM Technology Co., Ltd. Acquired share of Rosso Inc. Opened Shiga office in Otsu City |
| 2025 | Merged CAC ORBIS CORPORATION Opened West Japan branch in Osaka City Spun off new business development division (CAC identity Corporation） Acquired share of INCULEAD CONSULTING LTD. Acquired share of recomot Inc. |