| 1983 | Feb. | Established as Nissho-Iwai Computer Systems Inc., wholly owned subsidiary of Nissho-Iwai Corporation |
|
1987 |
June | Changed name to Nissho-Iwai Infocom Systems Inc. |
|
1999 |
Apr. | Changed name to Nissho-Iwai Infocom Inc. |
| Established Infocom Services Inc. (presently Infocom Technologies Corporation) | ||
|
2000 |
Apr. | Changed name to INFOCOM CORPORATION |
|
2001 |
Mar. | Relocated the head office to Kanda Surugadai, Chiyoda-ku, Tokyo |
| Apr. | Merged with Teijin Systems Technology, wholly owned subsidiary of Teijin Limited | |
|
2002 |
Mar. | Listed shares for trading on the over-the-counter market |
|
2003 |
Oct. | Established Infovec Inc. (Company name changed to Grandit Corporation in 2012) |
|
2004 |
Dec. | Listed shares for trading on the JASDAQ securities exchange |
|
2006 |
Mar. | Owned the data center in Yokohama City |
| Nov. | Started e-book distribution service in internet business | |
|
2008 |
July | Relocated headquarters to Jingumae, Shibuya-ku, Tokyo |
|
2010 |
Apr. | Listed shares for trading on the JASDAQ market of the Osaka Securities Exchange |
| Oct. | Listed shares for trading on the JASDAQ (standard) market of the Osaka Securities Exchange | |
|
2013 |
Apr. | Acquired Radiology Division System Business from AJS Inc. |
| July | Listed shares for trading on the JASDAQ (standard) market of the Tokyo Stock Exchange | |
| Established Iwanuma Minna no Ie (Iwanuma City, Miyagi Pref.) | ||
|
2017 |
Aug. | Sold the data center in Yokohama City |
|
2018 |
Nov. | Changed listing of shares to the First Section of the Tokyo Stock Exchange |
| 2021 | Oct. | Converted MEDICAL CREATE Corp. to a group company |
| Nov. | Relocated headquarters to Akasaka, Minato-ku, Tokyo | |
| 2022 | Jan. | Converted AlterBooth Inc. to a group company |
| Apr. | Transition to the Prime Market of the Tokyo Stock Exchange | |
| 2023 | Apr. | Converted J-MAC SYSTEM, INC. to a group company |
| 2024 | Oct. | The shares were delisted from the Prime Market in the Tokyo Stock Exchange Prime Market pursuant to a tender offer and reverse stock split conducted by an entity managed, advised or controlled by Blackstone |
| 2025 | Apr. | INFOCOM CORPORATION absorbed and merged Grandit Corporation |
| July | Digital Entertainment are separated from the group | |
| Became a group company of NS Solutions Corporation |
