• Cabinet Office
• Ministry of Economy, Trade and Industry
• Ministry of Land, Infrastructure and Transport
• Ministry of Justice HQ & Regional Offices
• Imperial Household Agency
• House of Representatives
• Bank of Japan
• National Tax Agency & Regional Offices

Prefectural Government Offices

• Prefectural Government HQ
• Sizuoka, Nara, Kagawa, Yamaguchi, Fukushima, Wakayama, Fukuoka, Okinawa, etc.
• Metropolitan Police Department
• Prefectural Police Headquarters & Offices Kanagawa, Kagoshima, etc.

Municipal Government Offices

• Tochigi, Zama, Atsugi, Kushiro, Yamasaki, Kamakura, Shizuoka, Wajima, Ohtsu, Mita, Kawanishi, Itami, Wakayama, Miyoshi, Shiga, Hodatsu-Shimizu, etc.

Accounting, Audit, Systems Integrators

• PricewaterhouseCoopers Arata LLC
• Accenture Japan Ltd
• ABeam Consulting Ltd.
• TIS Inc.
• OGIS-RI Co., Ltd.
• PFU LIMITED
• Tokyo Kyodo Accounting Office
• NEC Fielding, Ltd.
• NEC Platforms, Ltd.

Utility, Communication Network, Railroad

• NTT Docomo, INC.
• Osaka Gas Co., Ltd.
• Japan Nuclear Fuel Limited
• Kyudenko Corporation
• J-POWER Business Services
• HC Networks, Ltd.
• Nishi - Nippon Railroad Co., Ltd.

Industries - Manufatruing

• Mitsubishi Corporation
• Mitsubishi Electric Corporation
• AGC Inc.
• Mitsubishi Electric Engineering Company, Limited
• Mitsubishi Electric Plant Engineering Corporation
• Mitsubishi Electric Mechatronics Engineering Corporation
• Mitsubishi Gas Chemical Company, Inc.
• Mitsubishi Heavy Industries Machinery Systems
• Mitsubishi Electric Mechatronics Engineering Corporation
• Mitsubishi Hitachi Power Systems , Ltd.
• SHINRYO CORPORATION
• Panasonic Corporation
• Panasonic Semiconductor Solutions Co., Ltd.
• ‎Panasonic Solution Technologies Co., Ltd
• Panasonic Industrial Devices Systems and Technology Co., Ltd.
• Toshiba Corporation
• Toshiba E&I Control Systems, Inc.
• KIOXIA Corporation
• NEC Corporation
• NEC Communication System, Ltd.
• HITACHI, Ltd.
• Hitachi IE Systems Co., Ltd.
• Mitsui Chemicals MC Co., Ltd.
• Yamaha Motor Co., Ltd.
• Yamaha Kumamoto Products Co., Ltd.
• Nippon Steel Corporation
• Kobe Steel, Ltd.
• Metal One Sumisho Tubular Products Co., Ltd.
• JFE Systems, Inc
• JFE Kyowa Container, Ltd.
• Toray Industries, Inc.
• NIKON CORPORATION.
• Toppan Printing Co., Ltd.
• Kubota Corporation
• Clarion Co., Ltd.
• Ricoh Japan Co., Ltd.
• ASICS Corporation
• Kobayashi Pharmaceutical Co., Ltd.
• Air Water Cryoplant, LTD.

• Japan Aerospace Exploration Agency
• National Institutes for Quantum and Radiological Science and Technology
• Railway Technical Research Institute
• Japan Automobile Research Institute

Academic & Educational Institutions

• Japan Advanced Institute of Science and Technology
• SOKENDAI, the Graduate University for Advanced Studies
• The University of Tokyo
• Keio University
• J. F. Oberlin University
• SANNO University
• Tokyo Junshin School Corporation
• Tokiwa University
• Shiga University
• Chiba University
• Ibaraki University
• Nagoya University
• Nara Medical University
• University of Kochi
• University of Niigata Prefecture
• International Medical Information Center

Financial Services Industries

• Japan Bank for International Cooperation
• Mizuho Bank, Ltd.
• Lifenet Insurance Company
• Kajima Leasing Corporation
• Showa Leasing Co., Ltd.

Broadcasting

• Japan Broadcasting Corporation
• TV TOKYO Corporation

Japanese Subsidiaries of Multinationals

• NIHON L'ORÉAL K.K.
• Arconic Japan Ltd.
• Elsevier Japan, Ltd.
• NHN comico Corp.
• NHN JAPAN Corp.

Industries - Services

• Bellsystem24, INC.
• Meidi-Ya Co., Ltd.
• IMAGICA Lab. Inc.
• Neo Japan Inc.
• Sony Payment Services Inc.
• Advance Create Co., Ltd.
• R-Cube, Ltd.
• ZOOM CORPORATION.
• VINX CORP.
• NTC Technologies
• BIGLOBE Inc.
• TOSTE Co., ltd.
• Marubishi Corp.
• SYSPRO Inc.
• Seibu-Leisure Co., Ltd.
• Japan Compensation Consultants Reconstruction Support Association
• Okayama Chuo Jyouhoukousha
• PHC Medicom Networks Corporation
• TOPPAN GRAPHIC COMMUNICATIONS CO.,LTD.
• J-SCube Inc.
• Sumitomo Realty & Development Co., Ltd.
• Keio Plaza Hotel
• Prince Hotels, Inc.
• Recruit Holdings Co., Ltd.
• Itochu Pulp & Paper Corporation
• NESI Corp.
• CONEXIO Corporation