Taisho Pharmaceutical Co., Ltd. is perceived as one of Kobayashi Pharmaceutical's biggest rivals. Taisho Pharmaceutical Co., Ltd.'s headquarters is in Toshima-ku, Tōkyō Prefecture, and was founded in 1912. Taisho Pharmaceutical Co., Ltd. operates in the Pharmaceuticals industry. Taisho Pharmaceutical Co., Ltd. generates 265% of Kobayashi Pharmaceutical's revenue.
Tanabe Pharma has been one of Kobayashi Pharmaceutical's top competitors. Tanabe Pharma is a Private company that was founded in 1933 in Chuo-ku, Ōsaka Prefecture. Tanabe Pharma operates in the Pharmaceuticals industry. Compared to Kobayashi Pharmaceutical, Tanabe Pharma has 2,675 more employees.