Softmax Co., Ltd. (3671.T) develops, sells, implements, and maintains integrated medical information systems and corporate systems primarily for medical institutions in Japan. The company offers the PlusUs series, including PlusUs electronic health records (EHR) for patient medical information management, PlusUs ordering systems for examinations and medications, PlusUs medical accounting systems for billing and streamlining hospital operations, as well as reception, accounting, data collection, processing, and analysis tools for hospital management and decision-making support; it provides associated hardware, system software, and maintenance services with interoperability features for third-party systems. Founded in January 1974 and headquartered in Tokyo, Japan, with origins in Kagoshima Prefecture, Softmax operates nationwide, serving over 323 facilities with PlusUs EHR and 515 facilities with PlusUs medical accounting as of the latest reports.[ from fetch] In recent developments, the company celebrated its 50th anniversary in January 2024, entered a naming rights partnership with Kagoshima University in February 2025, signed an official sponsorship with the Kagoshima Levnize basketball team in October 2024, hosted medical information system exhibitions such as in Fukuoka in October 2025, received the Best Cloud ISV Partner of the Year award in July 2024, and continues to promote medical DX initiatives for sustainable healthcare alongside IT adoption subsidies.[ from fetch][ from fetch]