IT, Security & Network Installations

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
Japan Information Processing Development Corporation
Provides specialized analysis of large and complex data ensuring reliable framework.
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
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
Agrex Inc.
Provide a number of outsourcing services to clients. Address : 5th Fl., J Tower 1-1, Nikko-cho, Fuchu, Tokyo 183-0044
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
Enterasys Networks K.K.
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
systemsGo
IT support and IT project management services in Tokyo. Located at Azabudai Amerex Building 3F, 3-5-7 Azabudai, Minato-ku.
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.
Vega Project
Audio-visual/IT products and solutions for use in presentation, audio and video conferencing and control systems. Located at Toko Building 3F, 1-3-9 Shintomi, Chuo-ku.
QlikTech
Business consultants and systems integrators. Located at Izumi Garden Tower 10F, 1-6-1 Roppongi, Minato-ku, Tokyo 106-6010.
Internet Association Japan
Promotes advanced information systems, solves problems which ISPs encounter when they operate services, helps growth of Internet.
jpstream
E-commerce, application hosting, web hosting services for small and medium businesses. Address : Level 9, Ariake Frontier Building Tower B 3-1-25 Ariake, Koto-ku Tokyo 135-0063 Japan
e Developpement
Financial advisory providing a wide range of market research, media, technology analysis, strategy consulting and finance services.
Transcosmos inc.
Provides outsourcing services, digital marketing and analytics services. Address : 3-25-18, Shibuya, Shibuya-ku, Tokyo 150-8530 Japan.
Japan Network Information Center
Administers IP addresses, conducts promotion, enlightenment and research activities, guarantees smooth administration of the internet.
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.
TIS Solution Link Inc.
Information technology consultant from design and development of systems with problem solution capabilities. Located at Shinjuku Square Tower18F, 6-22-1 Nishishinjuku, Shinjuku-ku, Tokyo 163-1117.
Asahi Business Solutions Corp.
IT consulting, system development, maintenance and operations. Located at Asahi Beer Azumabashi Building, 1-23-1 Azumabashi, Sumida-ku.
PS Japan Co. Ltd.
Provides protection for PCs, business and device management also.Address : 9th Fl., Nihonbashi Odenma-cho Plaza Bldg. 1-8, Nihonbashi Odenma-cho, Chuo-ku, Tokyo 103-0011
Consulting Inc.
Business information, training and consulting services.
LexisNexis Japan K.K.
Provides content-enabled workflow solutions to professionals in the legal, risk management, corporate, government, law enforcement, accounting, and academic markets. Address : 19th Fl., Carrot Tower 1-1, Taishido 4-chome, Setagaya-ku, Tokyo.....
International Consulting
Diagnosis, planning and marketing strategy services.
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.
Aineo Corp.
Provides outsourced computer, network, and telephone systems support. Address : 4-4, Iwamoto-cho 1-chome, Chiyoda-ku, Tokyo 101-0032.
Savvis Communications
IT solutions for consumer brands, e-commerce, SaaS, business continuity, content and proximity hosting. With technology services for cloud hosting, colocation, network and security. Tokyo office: Kyodo Building 7F, 3-29 Kanda Jinbocho, Chiyoda-ku.
Accelrys K.K.
JDA Software Japan Ltd.
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.
Anemone Ventures
Management consulting company supporting technology startups and SMEs to enter Asia
TopTech Informatics K.K.
IT solutions and services including customised software development, IT infrastructure design and setup, office relocations and setup, MS exchange hosting and more. Address : Jidai Bldg. 4F, 1-7-5 Iidabashi, Chiyoda KU, Tokyo 102-0072.
INES Corp.
Provider of data processing and communication network services, software development, system integration and other related services. Address : 11-1, Akasaka 6-chome, Minato-ku, Tokyo 107-8427
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.
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
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.
KVH
Tokyo IT company for integrated communications and managed IT infrastructure services such as data networking, internet access, voice, managed IT and cloud services. Located at Tamachi Ekimae Building, 3-1-35 Shibaura, Minato-ku.
Universal Technics Co.,Ltd
Computer hardware/software and development, office automation equipment and office furniture, planning, design and construction of system LAN cabling and more. Address : Kokusai Chusei Kaikan, 14-1, Goban-cho, Chiyoda-ku, Tokyo 102-0
TIS First Manage Inc.
Software development company from information processing to communication technology. Located at Shinjuku Square Tower 4F, 6-22-1 Nishishinjuku, Shinjuku-ku, Tokyo 163-1117.
CSK Systems Corp
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.
Soliton Systems, K.K.
Provides IT security, IT integration, real time video telecasting system and LSI.Address: 2-4-3 Shinjuku, Shinjuku-ku Tokyo 160-0022
Actuate Japan Co.,Ltd.
Provides multiple development and design tools. Address : 15th Fl., Serulean Tower 26-1, Sakuragaoka-cho, Shibuya-ku, Tokyo 150-8512
RR Donnelley Venue
RRD Venue is a secure virtual data room that manages confidential information for time sensitive financial transactions.
Nihon Database Kaihatsu Co.,Ltd.
Sale, consulting, and development of dictionary, digitisation, modification, editing, and translation of information and data system development. Address : 7th Fl., Otsuka General Bldg. 19-12, Kitaotsuka 1-chome, Toshima-ku, Tokyo 170-0004
Pacific Business Consulting, Inc.
Technology solutions for business operations, intelligence and security. Located at Tennoz First Tower 15F, 2-2-4 Higashi Shinagawa, Shinagawa-ku, Tokyo 140-0002.
Jaipa Internet Providers Association
Internet services security. Address : Kakoh Sakuragaoka Bldg. 6F 3-24 Sakuragaoka-cho Shibuya-ku, Tokyo 150-0031
Maruzen
Develop and sell computerized library management systems, along with library operations outsourcing services, digitizing services and consulting. Address : No.2 Maruzen Bldg. 9-2, Nihonbashi 3-chome, Chuo-ku, Tokyo 103-8244
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
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.
Method IT
Business services in Tokyo, private cloud solutions, datacenter hosting, software management, website and e-commerce design. Located at Takanawa White Mansion 1006, 2-15-11 Takanawa, Minato-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.
New Listing
Provides IT services covering number of business services, IT Management and IT Platform Solutions to clients.Address : Harumi Island Triton Square Office Tower-Z 8-12, Harumi 1-chome, Chuo-ku, Tokyo 104-6241
First Contact Corporation
IT training, planning and implementations of systems. Located at Shibuya Square A, 1-9-5 Dogenzaka, Shibuya-ku.
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.
TIS Total Service Inc.
Shared services such as office and business support, purchasing and human development services (temporary staffing and placement dispatching). Located at Shinjuku Square Tower 17F, 6-22-1 Nishishinjuku, Shinjuku-ku, Tokyo 163-1117.
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Consultants Co., Ltd.
Business and financial management consultancy and annual training programmes.
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Sybase
An SAP company delivering enterprise and mobile infrastructure, development and integration software solutions. Tokyo office located at Akasaka Garden City 5F, 4-15-1 Akasaka, Minato-ku.
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
I-N Information Systems, Ltd.
Provides development, management and maintenance of shared databases and external services for economic statistics and finance databases also. Address : Kowa Hitotsubashi Bldg. 7-1, Kanda Nishiki-cho 3-chome, Chiyoda-ku, Tokyo 101-0054
Larkin & Associates
Financial, risk consulting and SOX compliance services with internal and IT audit, taxation and IFRS services, enterprise risk management. Located at   8F Shinkawa Ohara Building, 1-27-8 Shinkawa, Chuo-ku, Tokyo  104-0033.
Tokyo IT Support
Tech support Tokyo, IT services Tokyo, IT consultants, software upgrades, hardware repair, Tokyo small office computer help, large equipment and desktop PC repairs. Open weekdays 10:00-18:00 at 2-19-3 Higashi Azabu, Minato-ku.
Gartner Japan
Information technology research and advisory company. Located at Atago Green Hills MORI Tower 5F, 2-5-1 Atago, Minato-ku.
WIT Corporation
IT consulting and outsourcing services, application/system development, network and infrastructure building, help desk support. Tokyo office: Kasei Building 5F, 2-3-3 Kyobashi, Chuo-ku.
TIS System Service
Software development, system operation and staffing services. Located at Shinjuku Front Tower 13F, 2-21-1 Kita-Shinjuku, Shinjuku-ku, Tokyo, 169-0074.
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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...
Consultant
Specialist Dianetics of L. Ron Hubbard for spirit improvement. Private and group consulting are available.
International
Consultancy service for business development, project management, international business, business model and coaching.
Intercom, Inc
Provides PC-based advanced communication software. Address : Sorimachi Bldg. 3-5, Taito 1-chome, Taito-ku, Tokyo 110-8654
IBM Japan, Ltd.
Business services, IT services and solutions, outsourcing services, consulting and more related services to clients. Address : 19-21, Nihonbashi Hakozaki-cho, Chuo-ku, Tokyo 103-8510
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.
Information-Technology Promotion Agency, Japan
Protects and promotes IT society through countermeasures against security risks, improve reliability of information processing systems and nurturing IT human resources to ensure reliability and vitality of Japanese economy.
IDC Frontier Inc.
Provides cloud computing(IaaS), cloud storage service and data centre service. Address: Kioi Tower,Tokyo Gardern Terrace Kioicho, 1-3 Kioicho, Chiyoda-ku, Tokyo 102-8124 Japan
Atheros Communications K.K.
Tripwire Japan K.K.
Provides IT security software, data security, regulatory compliance,  security configuration management, continuous monitoring and incident detection. Address : 24-8, Sekiguchi 1-chome, Bunkyo-ku, Tokyo 112-0014
INTEC
Integrated technology solutions from information technology to telecommunications. Tokyo head office is located at 1-3-3 Shinsuna, Koto-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
SimNet Computing Ltd.
Offers computer network and subsequent maintenance and support programs. Location: 3rd floor., Takanawa Bldg. 13-11, Takanawa 4-chome, Minato-ku, Tokyo
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
Nomura Research Institute
Research , consulting and IT solutions to business corporations operating on a global scale. Located at Marunouchi Kitaguchi Building, 1-6-5 Marunouchi, Chiyoda-ku, Tokyo 100-0005.
Japan Third Party
Technical IT service provider in Japan. Located at InterCity Building A 13F, 2-15-1 Konan, Minato-ku.
Japan Telework Association
Surveys and researches telework activities of Telecommunication Companys, provides reliable network for company.

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