| Apr. 1977 | Founded as subsidiary company of Printing Corporation Starts dealing with Marubeni Corporation |
| Apr. 1979 | Begins Business software developments and Graphics Services Starts dealing with NHK(Japan Broadcasting Corporation) |
| Apr. 1983 | Becomes independent company as Link Information Systems Co., Ltd. Starts dealing with NEC Aerospace Systems |
| Apr. 1985 | Begins Embedded Software developments |
| Apr. 1987 | Introduces Engineering Work Stations Begins communication control software developments for UNIX /C Starts dealing with Marubeni Information Systems Co., Ltd. |
| Apr. 1989 | Begins TV Caption production for NHK(Japan Broadcasting Corporation) |
| Apr. 1995 | Develops Client/Server environment and related software |
| Apr. 1996 | Took a order of Aircraft parts procurement system for JAL group |
| Apr. 1998 | Establishes Link Information System (M) Sdn. Bhd. (Malaysia) |
| Jul. 1999 | Establishes Link IT Co., Ltd. (Japan) |
| Nov. 2000 | Increase capital to 50M JPY |
| Jun. 2001 | Begins “Mobile-Wise” Service |
| Jan. 2002 | Acquired “Privacy Mark” for Personal Information Protection Management System |
| Oct. 2002 | Begins Caption Production Service for commercial broadcasting companies |
| May. 2004 | Establishes Link Chugoku Engineering (Japan) |
| Dec. 2004 | Acquired ISO14001 for Environment Management System |
| Apr. 2010 | Acquired ISO27001 for Information Security Management System |
| Apr. 2013 | Marks 30th Anniversary as Link Information Systems Co., Ltd. Publishes chronicle as “LinkWiki” |
| Apr. 2013 | Link Information Systems Co., Ltd. enters the 30th years anniversary Begins the compilation service “LinkWiki” of company history |
| Apr. 2017 | Begins real time TV Caption production for NHK(Japan Broadcasting Corporation) |
| Oct. 2017 | Head office has moved to Ichibancho, Chiyoda-ku, Tokyo Assignments of share to TDI CO., LTD. (Technological Development of Information-processing) |
