| 1968-02 |
Established as Computer Engineers Inc. (capital 1 million yen) in Takanawa, Minato-ku, Tokyo, and started software development business. |
| 1968-02-24 |
Established on February 24, 1968 |
| 1969-03 |
Relocated headquarters to Shibuya-ku, Tokyo. |
| 1971-10 |
Opened a business office in Nagoya City. |
| 1972-01 |
Opened a business office in Osaka City. |
| 1978-02 |
Changed company name to C.E.C. |
| 1980-08 |
Opened a business office in Fukuoka City. |
| 1985-05 |
Constructed Miyazaki System Laboratory in Miyamae-ku, Kawasaki City. |
| 1989-03 |
Constructed Sagami-no System Laboratory in Zama City, Kanagawa Prefecture. |
| 1990-11 |
Listed on the Second Section of the Tokyo Stock Exchange. |
| 1991-07 |
Constructed the second Sagami-no System Laboratory building in Zama City, Kanagawa Prefecture. |
| 1996-12 |
Obtained ISO9001 certification. |
| 1997-07 |
Constructed Oita System Laboratory in Kitsuki City, Oita Prefecture. |
| 1999-03 |
Obtained Privacy Mark certification from the Japan Information Processing Development Corporation; established Shanghai Baogang Software Co., Ltd. through a joint venture with Shanghai Baokei Computer Technology Co., Ltd. |
| 1999-03 |
Obtained Privacy Mark certification from the Japan Information Processing Development Association |
| 1999-03 |
Established Shanghai Baoxin Computer Technology Co., Ltd. through a joint venture with Shanghai Baosteel Software Co., Ltd. |
| 2001-07 |
Listed on the First Section of the Tokyo Stock Exchange |
| 2001-07 |
Listed in July 2001 (TSE First Section) |
| 2002-06 |
Obtained certification for the Information Security Management System (ISMS) conformity assessment system at Kanagawa Data Center |
| 2002-06 |
Information Security Management System (ISMS) |
| 2002-06 |
Certification of the Conformity Assessment System obtained |
| 2003-04 |
Relocated headquarters to current location (Ebisu, Shibuya-ku) |
| 2003-08 |
Established CEC Shanghai in Shanghai, China: Started verification service business |
| 2003-08 |
Established CEC Shanghai in Shanghai, China |
| 2003-08 |
Started verification service business |
| 2004-12 |
Obtained certification for the British standard of the Information Security Management System at Kanagawa Data Center (BS7799) |
| 2004-12 |
Information Security Management System UK Standard |
| 2004-12 |
Certification of BS7799 obtained |
| 2005-11 |
Opened a data center in Tokyo |
| 2007-03 |
Obtained certification for the international IT service standard (ISO/IEC 20000) at Tokyo and Kanagawa Data Centers |
| 2007-03 |
Certification of international IT service standard (ISO/IEC 20000) obtained |
| 2009-09 |
Established Miyazaki Taiyo Farm Co., Ltd. in Miyazaki City |
| 2010-09 |
Opened Tokyo Second Data Center in Ikebukuro |
| 2017-06-01 |
Permit date: June 1, 2017 |
| 2018-12 |
Opened Shinagawa Innovation Center in Minato-ku, Tokyo |
| 2021-07 |
Obtained ISO 14001 (Environmental Management System) certification |
| 2022-04 |
Transitioned to a Prime Market during the reorganization of the Tokyo Stock Exchange |
| 2022-04 |
Transitioned to a company with an Audit and Supervisory Committee |
| 2022-04 |
Listed in April 2022 (Prime Market) |
| 2022-11-21 |
電気通信工事業 国土交通大臣（般-4） 第28700号（許可年月日：2022年11月21日） |
| 2025-04 |
Acquired shares of Information System Service Co., Ltd. and made it a wholly owned subsidiary |
