Consolidated subsidiaries and Equity-method affiliated companies
Japan
| Manufacture, sales, import/export of pharmaceuticals, clinical testing and medical equipment, food products and cosmetics | |
| Manufacture and sales of pharmaceutical and nutritional products | |
| Manufacture and sales of pharmaceutical products | |
| Warehousing and transport business | |
| Manufacture and sales of chemical products, pesticide and fertilizer | |
| Manufacture and sales of analysis and measurement equipment | |
| Manufacture and sales of food products, import and sales of wine | |
| Manufacture and sales of pharmaceutical products | |
| Manufacture and sales of paper products | |
| Manufacture and sales of synthetic resin molded products | |
| Development of medical treatment systems for intractable diseases | |
| Manufacture and sales of pharmaceutical products | |
| Manufacture and sales, import/export of insecticide and toiletry products | |
| General environmental health management |
United States
| Holding company | |
| Manufacture and sales of pharmaceutical products | |
| Clinical development and commercialization of pharmaceutical products | |
| Commissioned research and development of pharmaceutical products | |
| Manufacture and sales of nutritional products | |
| Manufacture and sales of soft drinks and beverages | |
| Manufacture and sales of wine | |
| Manufacture and export of soft drinks and beverages | |
| Manufacture and sales of reagents for research, such as stable isotopes | |
| Manufacture and sales of beverages |
Europe
| Manufacture and sales of pharmaceutical products | |
| Otsuka Pharmaceuticals （UK） Ltd. | Purchasing and sales of pharmaceutical products |
| Manufacture and sales of pharmaceutical products | |
| Purchasing and sales of pharmaceutical products | |
| Purchasing and sales of pharmaceutical products | |
| Manufacturing and distributing of functional and dietetic foods | |
| ALMA S.A. | Holding company of Alma Group, which manufactures and markets spring water, mineral water and soft drinks |
Asia and Middle East
| Manufacture and sales of pharmaceutical products | |
| Holding company | |
| Sichuan Otsuka Pharmaceutical Co., Ltd. | Manufacture and sales of pharmaceutical products |
| Zhejiang Otsuka Pharmaceutical Co., Ltd. | Manufacture and sales of pharmaceutical products |
| Guangdong Otsuka Pharmaceutical Co., Ltd. | Manufacture and sales of pharmaceutical products |
| Manufacture and sales of soft drinks and beverages | |
| Taiwan Otsuka Pharmaceutical Co., Ltd. | Manufacture and sales of pharmaceutical products |
| Manufacture and sales of pharmaceutical products | |
| P.T. Otsuka Jaya Indah | Purchasing and sales of beverages and agricultural products |
| Purchasing and sales of pharmaceutical products and medical equipment | |
| Manufacture and sales of pharmaceutical products | |
| Manufacture and sales of soft drinks and beverages | |
| Egypt Otsuka Pharmaceutical Co., S.A.E. | Manufacture and sales of soft drinks and beverages |
| Manufacture and sales of pharmaceutical products | |
| Manufacture and sales of beverages and foods | |
| Manufacture and sales of pharmaceutical products | |
| Manufacture and sales of foods and beverages | |
| Holding company | |
| Manufacture, sales and exports of medical equipment | |
| Manufacture and sales of beverages and foods | |
| Manufacture and sales of pharmaceutical products |
