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  3. ディーシステム
Information and Communications
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ディーシステム

EstablishmentJuly 13, 1998
capital10000Ten thousand
number of employees150
addressTokyo/Minato-ku/3F Shinagawa Grand Central Tower, 2-16-4 Konan
phone03-5462-7251
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last updated:Oct 15, 2026
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ディーシステム Company Profile

Reliable technology that has responded to trust.

Since our establishment in 1998, we have gained the trust and confidence of our customers through the high level of technical expertise we have cultivated over more than 20 years. In this rapidly changing industry, utilizing AI, IoT, and big data, a new era is approaching where humans and computers will collaborate at a higher level, leading to a richer and more convenient world. A brilliant future awaits us as we look ahead. As an independent company, we will continue to respond to our customers' needs, embracing change and actively taking on challenges. We sincerely ask for your continued support and patronage in the future. Representative Director Takahiko Nakamura

Business Activities

■SAP Operations Business  ・Development and operation of core systems based on SAP's ERP package ■Operational Support Business  ・System operation, outsourcing design, operational design, help desk ■Development Support Business  ・Requirements definition for business applications and web applications, system design, programming, infrastructure design and construction ■DX Support Business  ・Data analysis, algorithm development, and support for AI solution implementation ■Worker Dispatch Business  ・Provision of staffing services for freelancers specialized in IT, operation of LifeActor

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DC System Achievements and Case Studies

DC System Achievements and Case Studies

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news(1)

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D-System Co., Ltd. Official Note Launch

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D-System Co., Ltd. has launched an official note. Our company has been providing long-term support in the IT fields that support corporate operations, including pharmaceutical and healthcare IT, SAP/ERP, IT operations and business improvement, and AI and data utilization. In our official note, we will share insights and case studies accumulated in the field, focusing on GxP, CSV, and Data Integrity in pharmaceutical IT, SAP operations and knowledge transfer, IT operational improvements, generative AI, RAG, data utilization, and career development for engineers. We will provide information from a practical perspective, not just technical explanations, addressing what decisions need to be made in practice, where challenges are likely to arise, and how to connect these to improvements. Please take a look at the official note of D-System Co., Ltd.

Oct 14, 2026

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Detailed information

Company name ディーシステム
number of employees150
Contact addresspostalcode 108-0075 Tokyo/ Minato-ku/ 3F Shinagawa Grand Central Tower, 2-16-4 KonanView on map TEL:03-5462-7251 FAX:03-5462-7252
Key PartnersAstellas Pharma Inc. (and its affiliates) Tanabe Mitsubishi Pharma Corporation Nippon Shinyaku Co., Ltd. Sumitomo Chemical Co., Ltd. Boehringer Ingelheim Japan, Inc. Accenture Ltd.
Pharmaceutical and chemical industry ratio: 75% Percentage of customers with over 10 years of continuity: 75% Employee IT certification acquisition rate: 95%
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