| April 1961 | Direct Mail Service Co., Ltd. incorporated |
|---|---|
| August 1964 | Osaka Branch opened |
| October 1971 | Toppan Direct Mail Center Co., Ltd. established |
| April 1976 | Itabashi Operations Center opened |
| July 1980 |
Capital participation in Deck Co., Ltd. Planning and production division enhanced |
| October 1981 | Asaka Operations Center opened |
| October 1985 | DMS Building No. 2 completed |
| April 1991 |
Renamed DMS Inc. 30th anniversary of company incorporation |
| April 1991 | New Osaka Branch completed |
| October 1995 | Shares registered for OTC trading with the Japan Securities Dealers Association |
| September 1998 | Koto Operations Center opened |
| February 1999 | Privacy Mark certification earned |
| June 2000 | Logistics Center opened |
| December 2003 | Toppan Direct Mail Center Co., Ltd. made wholly owned subsidiary and renamed TDM Co., Ltd. |
| April 2004 | TDM Co., Ltd. absorbed |
| July 2004 |
DMS Operations Center opened Existing sites consolidated |
| December 2004 | Share registration for OTC trading with the Japan Securities Dealers cancelled; shares listed on JASDAQ Securities Exchange |
| October 2005 | Information Security Management System (ISMS) certification earned |
| November 2008 | DMS Operations Center No. 2 opened |
| October 2010 | Logistics Center expanded inside Operations Center |
| December 2010 | New headquarters building completed |
| April 2011 | 50th anniversary of company incorporation |
| April 2013 | Fukuoka Sales Office opened |
| June 2013 | Licensed to manufacture cosmetics and quasi-pharmaceutical products |
| January 2015 | ISO 9001 (quality management system standard) certification earned |
| April 2015 | Kawajima Logistics Center opened |
| November 2018 | Conformed to Payment Card Industry Data Security Standard (PCI DSS) |
| September 2020 | ISMS Cloud Security certification earned |