IT, Security & Network Installations

Computer Entertainment Suppliers Association (CESA)
Promotes computer entertainment industry through various research and promotional activites, training, study meetings, exhibitions, launches various projects to achieve the aim of CESA.
CleverGear Inc.
IT Consulting company for both home & small business. Training, troubleshooting, setup & support for Mac computers, iPhone, iCloud / iTunes, Wi-Fi & networking. Member of Apple Consultants Network. English & Japa...
Asahi Business Solutions Corp.
IT consulting, system development, maintenance and operations. Located at Asahi Beer Azumabashi Building, 1-23-1 Azumabashi, Sumida-ku.
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Emissary Computer Solutions
IT solutions and services for foreign and local businesses in Japan. Located at View Stage Suzuki 2F, 3-19-13 Higashi-Nakano, Nakano-ku.
AKB Japan
International company that can assist companies optimize their IT infrastructure, tailored to company needs, evaluation, audit, IT security and reduction of operating costs. Located at Park Habio 615, 4-22-10 Honmachi, Shibuya-ku.
Consultant
Specialist Dianetics of L. Ron Hubbard for spirit improvement. Private and group consulting are available.
Computer Associetes Japan, Ltd.
Provides IT management solutions that help customers manage and secure complex IT environments. Location: 39th Fl., Shinjuku Mitsui Bldg. 1-1, Nishi Shinjuku 2-chome, Shinjuku-ku, Tokyo
Accelrys K.K.
Brocade Communications Systems K.K.
Provides network solutions with consolidation, network convergence, virtualization, and cloud computing objectives. Address : 11st Fl., Daido Seimei Kasumigaseki Bldg. 4-2, Kasumigaseki 1-chome, Chiyoda-ku, Tokyo 100-0013
Anemone Ventures
Management consulting company supporting technology startups and SMEs to enter Asia
CTCSP CORPORATION
Technology services from network and security related equipment to storage devices and packaged software. Located at Nakamura Bldg., 1-16-7 Komazawa, Setagaya-ku, Tokyo 154-0012.
Arbor Networks K.K.
Provides network security and management solutions for enterprise and service provider networks. Address : 8th Fl., Uchida Bldg. 17-1, Shimbashi 1-chome, Minato-ku, Tokyo 105-0004
Advisors
Advisory services in market development, partnership alignment, technology licensing, and analysis of local market developments for new business initiatives. 
Hitachi Consulting
Business and IT consulting company with core services in business process, industry and leading-edge technology experience to develop and implement practical business strategies and technology solutions.
First Contact Corporation
IT training, planning and implementations of systems. Located at Shibuya Square A, 1-9-5 Dogenzaka, Shibuya-ku.
CSK Systems Corp
Consulting Inc.
Business information, training and consulting services.
Asist
Provides IT and TV consulting services, onsite support service for IT and TV, server management and network management services and more to clients. Address : 3F Azabu Maruka Bldg., 3-8-2 Higashi Azabu, Minato-ku, Tokyo 106-0044
Air Co.,Ltd.
Provides software design, development, implementation and localization. Address : 7th Fl., KDX Roppongi 228 Bldg. 2-8, Roppongi 2-chome, Minato-ku, Tokyo 106-0032
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Atheros Communications K.K.
Fujitsu
Business and technology solutions for R and D, manufacturing, data center, system integration, consulting, sales and support operations. Located at Shiodome City Center, 1-5-2 Higashi-Shimbashi, Minato-ku, Tokyo 105-7123.
Agrex Inc.
Provide a number of outsourcing services to clients. Address : 5th Fl., J Tower 1-1, Nikko-cho, Fuchu, Tokyo 183-0044
Enterasys Networks K.K.
CTC Technology Corporation
Support services on IT systems and networks; also conducts IT-related training. Located at Kurita Kudan Building, 1-11-5 Fujimi, Chiyoda-ku.
Consultants Co., Ltd.
Business and financial management consultancy and annual training programmes.
eSolia
Tokyo-based IT management firm with business consulting, project and outsourcing services. Located at Sawa Building 6F, 2-2-2 Nishi-Shinbashi, Minato-ku.
Actuate Japan Co.,Ltd.
Provides multiple development and design tools. Address : 15th Fl., Serulean Tower 26-1, Sakuragaoka-cho, Shibuya-ku, Tokyo 150-8512
Ad-Sol Nissin Corp.
Provides solutions to information systems and embedded systems for companies and the public. Address : Riverge Shinagawa 1-8, Konan 4-chome, Minato-ku, Tokyo 108-0075
Gartner Japan
Information technology research and advisory company. Located at Atago Green Hills MORI Tower 5F, 2-5-1 Atago, Minato-ku.
Acmos Inc.
Provides various IT solutions and IT services for customers. Location: Jinbocho Kinmei Bldg. 23, Kanda Jinbocho 3-chome, Chiyoda-ku, Tokyo 101-0051
e Developpement
Financial advisory providing a wide range of market research, media, technology analysis, strategy consulting and finance services.
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Artiza Networks, Inc.
Company mainly engaged in the development and sale of communication measuring machines. Address : Faret Tachikawa Center Squar 36-2, Akebono-cho 2-chome, Tachikawa, Tokyo
Blue Coat Systems K.K.
Provides Web security service, mobile device security service and more. Address : 10th Fl., Prudential Tower 13-10, Nagata-cho 2-chome, Chiyoda-ku Tokyo 100-0014
International Consulting
Diagnosis, planning and marketing strategy services.
Aineo Corp.
Provides outsourced computer, network, and telephone systems support. Address : 4-4, Iwamoto-cho 1-chome, Chiyoda-ku, Tokyo 101-0032.
Fusion Systems
Tokyo IT solutions and systems development, IT consultants, systems development and IT infrastructure services. Located at Daiwa Azabudai Building 8F, 2-3-3 Azabudai, Minato-ku.
A & I System Co.,Ltd.
Provides security solutions, system integration, sales and servicing of information system related products. Address : 16-9, Nihonbashi Hakozaki-cho, Chuo-ku, Tokyo 103-0015
CenturyLink Technology Solutions
Co-location data center, e-commerce functionality of cloud service complete type, managed hosting, IT outsourcing, industry-leading security and network services.
NAdvantage 24 K.K.
Cloud solutions Tokyo, IaaS solutions for your business, cloud computing, public, private or hybrid clouds. Located at 6-10-4 Yutaka-cho, Shinagawa-ku.
ACI Worldwide (Japan) K.K.
Provides electronic payments solutions to financial institutions, retailers and payment processors. Address : Rm.711, Burex Kyobashi 7-14, Kyobashi 2-chome, Chuo-ku, Tokyo 104-0031

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