Pillar Corp. engages in the manufacture and sale of fluid control equipment. It operates through the following segments: Industrial Equipment-related, Electronics-related, and Others. The Industrial Equipment-related segment produces mechanical seals, gland packing, gaskets, and fluid equipment which are applied into various industrial fields. The Electronics-related segment provides fluorocarbon resin as a sealing medium and other plastic products. The Others segment deals with real estate leasing business. The company was founded by Yoshishige Iwanami in May 1924 and is headquartered in Osaka, Japan.