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 the dental equipment and machines. The Archive Locker-Related Business segment manages coin lockers and other multipurpose storages. The OA Floor-Related Business segment involves in the OA floor equipment that eliminates office wirings. The Real Estate Leasing-Related Business segment engages in the lease and rental of buildings. The Others segment includes the industrial tools business. The company was founded by Itsuro Sano on August 15, 1916 and is headquartered in Ibaraki, Japan.