| September 1950 | Maruko Co., Ltd., a department store chain offering installment payment service, established at Kameido, Koto-ku, Tokyo, with 1,000,000 yen in capital. |
|---|---|
| October 1961 | Listed on the Second Section of the Tokyo Stock Exchange |
| July 1970 | Listed on the First Section of the Tokyo Stock Exchange |
| October 1978 | Entered the consumer finance industry, and started a financing service for a part of card holders. |
| February 1983 | Became an affiliate of The Daiei, Inc. |
| July 1984 | Merged with Asahi Credit Co., Ltd. |
| September 1987 | Renamed Daiei Finance, Inc. |
| September 1994 | Merged with RICCAR Co., Ltd. and ASAHI AGENCY, Travel, Inc, and changed its company name to Daiei OMC, Inc. Also entered the travel industry through the business succeeded from the merged company. |
| November 1994 | Entered the service line business based on the service line system transferred from The Daiei, Inc. |
| June 1999 | MCS Servicer Co., Ltd (presently a consolidated subsidiary) started the claims servicing business. |
| September 2002 | Renamed OMC Card, Inc. |
| September 2004 | Transferred the travel agent section to Nichiryo OMC Co., Ltd. |
| February 2007 | Merged ALPHA OMC Co., Ltd. |
| February 2008 | Reached an agreement on a credit card business strategy with Sumitomo Mitsui Financial Group, Inc., Sumitomo Mitsui Banking Corporation, Sumitomo Mitsui Card Co., Ltd., and Central Finance Co. Ltd. Reached a basic agreement with Sumitomo Mitsui Financial Group, Inc., Sumitomo Mitsui Banking Corporation, Central Finance Co. Ltd., and QUOQ Inc. on merger. |