1933 Established as Iuchi Seieido Store.
1962 Incorporated as Iuchi Seieido Co., Ltd. in Kita Ward, Osaka City for the sale of scientific instruments.
1963 Began publishing catalog for research under realization of the importance of catalogs for marketing and the potential of plastic components in the physical and chemical fields.
1970 Established Tokyo Office (now the Tokyo Branch Office) with the expansion of business in the Tokyo region.
1982 Began to sell dedicated clean room gloves, fully entered the semiconductor-related product market.
1985 Started catalogs for nursing products for hospitals, fully entered the hospital / care fields.
1989 Set up Osaka Logistics Center in Konohana Ward, Osaka City to develop our logistics system.
1990 Adopted online systems for the entire company, integrated order receiving / making, warehousing / dispatching and inventory management systems.
1991 Established Wakayama CIC in Nokami, Kaiso District, Wakayama Prefecture to fully enter into the special surface washing field. Began sale of high-quality dust-proof products.
1993 Shifted headquarters to Tenma, Kita Ward, Osaka City.
1995 Established Tokyo Logistics Center in Iwatsuki City, Saitama Prefecture (now Iwatsuki Ward, Saitama City). Installed automated equipment to streamline logistics.
Registered over the counter shares with the Japan Securities Dealers Association.
1997 Set up website, began interactive information communication over the Internet.
1998 All sites in Japan gained the international standard for quality assurance ISO9002 certification (revised to ISO9001 in 2003).
1999 Listed in the second section of the Tokyo Stock Exchange and the Osaka Securities Exchange.
2001 Listed in the first section of the Tokyo Stock Exchange and the Osaka Securities Exchange. Changed the company name to AS ONE Corporation.
Shifted the Tokyo Logistics Center to Kitakatsushika District, Saitama Prefecture.
2002 Shifted headquarters to Edobori, Nishi Ward, Osaka City.
2004 Shifted Osaka Logistics Center to Yodogawa Ward, Osaka City.
2005 Made Ernst Hansen Co. Ltd (now the consolidated subsidiary Nikko Hansen & Co., Ltd.) a subsidiary (ownership percentage of 90%).
2007 Established AS ONE SHANGHAI Corporation in Shanghai, China (100% capital subscription).
2008 Acquired environmental ISO14001 certification.
2010 Made Nikko Hansen & Co., Ltd. a full subsidiary.
2011 Established Kyushu Logistics Center in Asakura City, Fukuoka Prefecture.
2012 Adopted ASCA core system.
2016 Acquisition of Privacy Mark.
Established AS ONE INTERNATIONAL,INC. in California,U.S.A.
2017 Established Tonomachi Solution Lab in Kawasaki ward, Tokyo Prefecture.
2018 Tryumph21 Co. Ltd a subsidiary (ownership percentage of 51%).
2020 Established SmartDC in Chiba City, Chiba Prefecture.