NIHON ISK Co., Ltd. engages in the manufacture and sale of steel products, archive lockers, and dental instruments. Its operations are carried out through the following segments: Steel Product-Related Business, Dental-Related Business, Archive Locker-Related Business, Office Automation (OA) Floor-Related Business, Real Estate Leasing-Related Business, and Others. The Steel Product-Related Business segment provides fireproof vaults. The Dental-Related Business segment handles dental equipment and machines. The Archive Locker-Related Business segment manages coin lockers and other multipurpose storage. The OA Floor-Related Business segment involves OA floor equipment that eliminates office wiring. The Real Estate Leasing-Related Business segment deals with leasing such as buildings. The Others segment includes industrial tools business. The company was founded by Itsuro Sano on August 15, 1916 and is headquartered in Ibaraki, Japan.