PILLAR Corporation designs, develops, manufactures, and sells various fluid control equipment in Japan. It offers mechanical seals; gland packings; and gaskets. The company also provides fluid fittings, PFA tubes, bellows pumps, valves, heat exchangers fluororesin sealing products, insulation bolts and gaskets, fluororesin substrates for high-frequency, and fluororesin materials; and sliding material and seismic isolation products. The company was formerly known as Nippon Pillar Packing Co., Ltd. and changed its name to PILLAR Corporation in June 2024. PILLAR Corporation was founded in 1924 and is headquartered in Osaka, Japan.