| March 1955 |
Started as a maintenance management department of the management division since the opening of the Tokyo Sankei Building. This department was responsible for maintenance management of equipment such as buildings, air-conditioning, sanitation, building environment sanitation, electricity, and fire prevention in addition to safety and security management inside and outside of buildings as well as cleaning management. |
| March 1977 |
Became independent from The Sankei Building Co., Ltd. Established as Sankei Building Management Co., Ltd with 10,000,000 yen in capital. |
| February 1984 |
Fully invested in Otemachi Service Co., Ltd. (cleaning alongside human resource staffing services) to transition the company to a wholly-owned subsidiary. |
| July 1987 |
Participated in the establishment of Sernuc Corporation (capital 10,000,000 yen), which primarily conducts radiological protection and decontamination businesses, with Mitsubishi Materials |
| October 1995 |
Capital increase of 30,000,000 yen |
| October 1997 |
Moved head office to Minato-ku, Tokyo. |
| December 2000 |
Moved head office to Chiyoda-ku (Otemachi), Tokyo. |
| March 2001 |
Transfer of all shares of Otemachi Services Co., Ltd. to The Sankei Building Co., Ltd. |
| April 2001 |
Established an independent management organization of the cleaning department upon acquiring operational rights of the maintenance division of Otemachi Services Co., Ltd. |
| September 2002 |
Merged with Sankei Building Management Co., Ltd. (Osaka) and changed company name to The Sankei Building Maintenance Service Co., Ltd. (60,000,000 yen in capital after merger) |
| November 2002 |
Moved head office to Chiyoda-ku (Uchi-Kanda), Tokyo. |
| April 2004 |
Acquired ISO9001 certification. |
| August 2005 |
Transferred Osaka Branch Office to Naniwa-ku, Osaka |
| September 2005 |
Moved head office to Chiyoda-ku (Yurakucho), Tokyo. |
| August 2007 |
Acquired ISO14001 certification. |
| July 2013 |
Merged with Sankei Building Management Co., Ltd. and changed company name to Sankei Building Management Co., Ltd. |
| July 2014 |
Moved head office to Chiyoda-ku (Kanda-Surugadai), Tokyo. |
| September 2015 |
We established a joint venture named `VISAHO JOINT STOCK COMPANY`. |
| July 2022 |
Moved head office to Minato-ku (Nishishinbashi), Tokyo. |
| June 2023 |
Relocated the Osaka Branch to Chuo Ward (Hommachi), Osaka City. |
| October 2024 |
Acquired all shares of Shinwa Service Co., Ltd. |
| June 2025 |
Opened the Nagoya Branch. |
| October 2025 |
Acquired all shares of Asahi Sogyo Co., Ltd. |
