| 1982 |
- July
- Toyo Computer System Inc. established in Kanazawa Ward, Yokohama
|
| 1993 |
- October
- Toyo Techno Corporation established in Kanazawa Ward, Yokohama
|
| 1996 |
- February
- Toyo Infonet Co., Ltd. established in Kanazawa Ward, Yokohama
|
| 1997 |
- April
- Japan Automaton Corporation (established in 1980 in Kawasaki) merged with the Group
- August
- Toyo Computer System Inc. Kansai Branch opened in Nishi Ward, Osaka
|
| 1998 |
- August
- Toyo Useware Service Co., Ltd. established in Kanazawa Ward, Yokohama
|
| 2002 |
- January
- Toyo Computer System Inc., Toyo Techno Corporation, and Japan Automaton Corporation become wholly owned subsidiaries of Toyo IT Holdings Corporation, established in Kawasaki, following a share transfer
- December
- Toyo Useware Service Co., Ltd. becomes a wholly owned subsidiary following an exchange of shares
|
| 2005 |
- April
- APMG (Anti Phishing Mail Gateway) released by Toyo Techno Corporation as a countermeasure product for scams
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| 2006 |
- January
- Four wholly owned subsidiaries of Toyo IT Holdings Corporation (Toyo Computer System, Toyo Techno, Japan Automaton, and Toyo Useware Service) were absorbed, and trade name changed to Digital Information Technologies Corporation
- May
- Toyo Infonet Co., Ltd. becomes a wholly owned subsidiary following an exchange of shares
- October
- Digital Information Technologies Corporation Headquarters moved to Hatchobori, Chuo Ward, Tokyo
|
| 2009 |
- July
- Kansai Branch becomes independent from Business Solution Company as Western Japan Company
- October
- Excel work innovation platform xoBlos released
|
| 2010 |
- July
- Engineering Business Division becomes independent from Embedded Solution Company as Quality Engineering Company
|
| 2011 |
- January
- DIT America, LLC. established in Kansas, U.S.
|
| 2013 |
- February
- Phant’s Insurance Pharmacy Integrated Management System ASP service business launched
- April
- Ehime Company opened in Matsuyama
- November
- East Japan Center opened in Aoba Ward, Sendai
|
| 2014 |
- July
- WebARGUS instant website tampering detection and restoration solution released
|
| 2015 |
- June
- Listed on Tokyo Stock Exchange JASDAQ
|
| 2016 |
- May
- Listing changed to Tokyo Stock Exchange 2nd Section
|
| 2017 |
- March
- Designated as Tokyo Stock Exchange 1st Section brand
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| 2022 |
- April
- Transitioned to Tokyo Stock Exchange Prime Market
- June
- simplism inc. becomes wholly owned subsidiary following a stock transfer agreement
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| 2023 |
- November
- Hakodate Branch Office opened in Hakodate, Hokkaido
|
| 2024 |
- February
- System Product Co.,Ltd becomes owned subsidiary following a stock transfer agreement
jungle inc. becomes wholly owned subsidiary following a stock transfer agreement
|