| Dec 1968 | The company was founded. Akihiko Terada, the founder, launched the medical administrative services business. |
|---|---|
| May 1971 | Began on-site lessons for medical administration, marking the start of the education business. |
| Oct 1972 |
Expanded the medical administrative services business nationwide. |
| Aug 1973 | Established as Child Care Academy Co., Ltd. |
| Sep 1974 | The company’s textbooks for the Medical Office Work (Medical) course were designated as Ministry of Labor–certified teaching materials. |
| Aug 1975 | Changed the corporate name from Child Care Academy Co., Ltd. to NICHIIGAKKAN CO., LTD. |
| Aug 1980 | Established branch offices in all 47 prefectures of Japan. |
| Jul 1995 | Registered as an OTC company. |
| Apr 1996 | Launched the long-term care business with a focus on in-home care. |
| Mar 1999 | Listed on the Tokyo Stock Exchange Second Section. |
| Apr 2000 |
Long-term care Insurance Guidebook Established 770 nursing care facilities in response to the introduction of the long-term care insurance system, marking the full-scale expansion of the long-term care business. |
| Sep 2002 |
Tokyo Stock Exchange Listed on the Tokyo Stock Exchange First Section. |
| Apr 2003 | Entered the childcare business. |
| Dec 2004 | Began providing long-term preventive care services. |
| Nov 2007 | Expanded into full-scale facility care services. |
| Feb 2017 | Launched the nationwide expansion of company-led childcare facilities. |
| Feb 2018 | Launched “Sunny Maid Service,” a housekeeping service provided by foreign staff. |
| Nov 2020 | Went private through an MBO. |
| Apr 2021 | Transitioned to a holding company structure under Nichii Holdings Co., Ltd. |
| Jun 2024 | Integrated into the Nippon Life Group. |