1969
Founded Yoneya Okubo (Asakusa, Tokyo) and joined a franchise chain for the sale of clean care products.
1975
No. 1 nationwide in sales of clean care products at affiliated stores
1976
Company name changed to Daioh Co., Ltd.
1977
Office coffee service directly operated sales office opened
NCSA (National Office Coffee Service Association) international regular member
1978
Daiohs OCS franchise chain established
1979
Capital increased to 100 million yen
1980
Completion of Tokyo PD Center
1983
Company name changed to Daiohs Co., Ltd.
1985
Capital increased to 200 million yen
1988
Moved head office to Minato-ku (in front of JR Tamachi Station)
Established Daiohs USA (California)
1989
20th anniversary of founding
1995
Capital increased to 363 million yen
1996
Over-the-counter public offering
Capital increased to 743 million yen
1998
Moved the head office to the World Trade Center Building (in front of JR Hamamatsucho Station)
1999
30th anniversary of establishment of Daiohs in Taiwan Start of
operation of Fukuoka factory for CI renewal
the year of 2000
Made Daiohs Co., Ltd. into a pure holding company. Daiohs Services Co., Ltd. and Daiohs USA, Inc. were supervised. Started pure water service business. Started clean care service business with original brand. Started operation of Osaka factory.
2002
Acquired beverage business for office use from Yokohama Rubber and expanded business.
2003
Started coverall business (regular office cleaning service) in partnership with US company Coverall
2004
Established Shanghai Daiohs
2005
Established Daiohs Korea Listed on the second section of the Tokyo Stock Exchange
Increased capital to 1,048 million yen
2007
Designated First Section of the Tokyo Stock Exchange Capital
1,051 million yen
2008
PW metropolitan area 2nd factory started operation
2009
40th anniversary of foundation
2010
Established Beijing Daiohs Established
Daiohs Hong Kong Established
Sapporo factory
2011
Completion of Environmental No. 1 Factory
2012
Start of operations at Environmental No. 2 Plant
2014
Established Daiohs Malaysia
Established Daiohs Singapore
2015
Acquired “ISO22000:2005” certification for PW Metropolitan Area No. 2 Factory
2016
Changed trade name of domestic business subsidiary “Daios Services Co., Ltd.” to “Daios Japan Co., Ltd.” Kankyo
Tokyo Plant completed
2018
Beverage Nagoya factory completed
2019
Daiohs USA enters Canada
50th anniversary
Kankyo Osaka Plant completed
2020
Relocated head office to Marunouchi, Chiyoda-ku
Completed Tokyo Cafe Lab
2021
Beverage Osaka factory completed
