| Name | Riso Kyoiku Co., Ltd., |  Mitsugu Iwasa |
| Head Office | 3-1-40 Mejiro, Toshima-ku, Tokyo (since January 2002) | |
| Established | July 6, 1985 | |
| Capital | 693.47 million yen (as of February 28, 2010) | |
| Employees | 232 (as of February 28, 2010, not including junior and part-time employees) | |
| Directors |
Chairman : Mitsugu Iwasa President: Shuichi Miyashita Senior Managing Director: Makoto Ito Managing Director: Nobuo Kishi Directors: Shunetsu Kikuchi Directors: Ｋoji Akao Auditor (full-time): Kuniichi Kawamura Auditors: Sumio Uchikawa, Hisao Koizumi, Toshiaki Nakamura |
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| Outline of business operations | Establishment and operation of TOMAS private study "Juku" schools for elementary, junior high, and high school students | |
| Main stockholders |
Bank of Tokyo-Mitsubishi UFJ Ltd. Mizuho Bank Ltd. Sumitomo Mitsui Banking Corp. Mitsubishi UFJ Trust and Banking Corp. Tokio Marine & Nichido Fire Insurance Co., Ltd. Nippon Life Insurance Company |
| - July 1985 | Established in Shinjuku-ku, Tokyo, as Nihon Kyoiku Kosha K.K. Began establishing classrooms under the name of Riso Kyoiku Kenkyusho (Risoken) Endeavored to establish a responsible instruction system by instructors who were 100% employees, limited to six students per class |
| - April 1989 | Head Office moved to 3-14-3 Mejiro, Toshima-ku, Tokyo |
| - May 1989 | Established "Meimonkai" home tutor center, and began operations in the home tutoring segment. Began individual instruction by a group of professional instructors that differed from conventional "student teachers" |
| - March 1990 | Developed a unique "Completely private classroom (all rooms with blackboards) one-on-one private instruction system", and changed the classroom names to "Tokyo Man-to-man School" |
| - January 1997 | Changed classroom names from "Tokyo Man-to-man School" to "TOMAS" |
| - October 1998 | Changed company name to Riso Kyoiku Co., Ltd. |
| - December 1998 | Initiated over-the-counter issue of stocks with Japan Securities Dealers Association |
| - March 2000 | Established "TOMAS" as official name of "Tokyo Man-to-man School" |
| - July 2000 | Established "Nihon Edunet" to provide comprehensive interactive private instruction in real time via the Internet |
| - March 2001 | Listed on the 2nd Section of the Tokyo Stock Exchange |
| - January 2002 | Head Office moved to 3-1-40 Mejiro, Toshima-ku, Tokyo |
| - March 2002 | Started international education program, study abroad tour in Australia, Canada and U.K |
| - June 2002 | Listed on the 1st Section of the Tokyo Stock Exchange |
| - December 2002 | Established "School Tour Ship" |
| - January 2003 | Meimonkai spun off as separate company Shingakai acquired as subsidiary |
| - March 2005 | Started international foundation course with York St John College (York St John University) |
| - July 2005 | Official (Japanese) name of School Tour Ship changed to Riso Kyoiku Kikaku K.K. |
| - January 2007 | Started international English camp in Japan |
