| September 1997 | NTT COMMUNICATIONWARE CORPORATION launched |
|---|---|
| November 2000 | Changed the name to NTT COMWARE CORPORATION |
| April 2001 | Established NTT COMWARE BILLING SOLUTIONS CORPORATION |
| September 2001 | Acquired NTT INTERNET INC. as subsidiary |
| October 2014 | Merged NTT COMWARE BILLING SOLUTIONS CORPORATION and NTT Quaris Corporation into NTT Printing Corporation |
| July 2016 | Established COMWARE FINANCIAL SYSTEMS CORPORATION |
| January 2022 | Participated in the NTT DOCOMO Group |
| July 2022 | Absorbed DOCOMO Systems, Inc. Acquired DOCOMO Datacom, Inc. as subsidiary |
| July 2023 | Transferred shares of COMWARE FINANCIAL SYSTEMS CORPORATION to NTT Communications Corporation (currently NTT DOCOMO BUSINESS, Inc.) |
| July 2025 | Changed the name to NTT DOCOMO SOLUTIONS, Inc. |
