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 | Acces Co., Ltd. - Develops and maintains large-scale information systems for financial institutions and other organizations in Japan and overseas.
|  | Access Systems America - Develops computer and telecoms products, including web browsers for telephones and appliances.
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 | Advanced Technology and Systems Co., Ltd. (ADTX) - Maker of data storage systems and devices, networks, monitors, and related software.
|  | AGREX - Performs IT outsourcing services for network integration, building system infrastructures, consulting, operations and maintenance. Based in Shinjuku, Tokyo.
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 | Aica Kogyo - Manufacturer of melamine boards, printed wiring boards, and computer memory.
|  | Allied Telesis Inc. - Maker of computer local area network related equipment, such as switches, hubs and routers. With profile, history, and organization.
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 | Alpha Systems - A Tokyo based software developer for telecommunication systems, system operations, system development personnel supply, and integration services.
|  | AMSC Co., Ltd. - Based in Musashino City, Tokyo. Markets semiconductors, memory chips, and microprocessors. With profile, history, and organization.
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 | Aoi Electronics Co., Ltd. - Based in Takamatsu City, Kagawa. Active in semiconductor wafer assembling. With company outline, history, and organization.
|  | Argo 21 - Offers communications and management related software, management systems, and tool and die industrial products.
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 | ASCII Corporation - Producer and publisher of computer and IT related magazines and books. With company information, support, and news.
|  | Asia Air Survey Co., Ltd. - A mapping, survey, engineering and computer systems company based in Shinjuku, Tokyo.
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 | Atlus Co. Ltd. - Maker of arcade games and home videogame software. With Japan headquarters and U.S. office.
|  | Buildup - Multimedia production company using computer graphics to transform images from Japanese animation, comics, and games for videos, programs, commercials, and games.
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 | Business Associates Co., Ltd. - Offers bilingual accounting-related software, tax and accounting consulting, and computer system development and support.
|  | CAC Co., Ltd - Offers IT consulting, network integration, operation, and maintenance. With corporate profile, history, and subsidiary office locations. Based in Chiyoda-ku, Tokyo.
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 | Canon System Solutions Inc. - Provides sales and support of computers, information communicating equipment, and other related devices, system integration and consultation, as well as network system integration and software. Head offices in Osaka and Tokyo.
|  | Canopus Co., Ltd. - Maker of digital video editing machines, and personal computer related graphics equipment. With corporate profile and international subsidiaries. Based in Kobe.
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 | Capcom Co., Ltd. - Maker of home video games, arcade games and operations, and active in licensing its game characters. With business profile, data, organization, and subsidiaries.
|  | Capcom Entertainment - Worldwide page for Japanese manufacturer of game software.
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 | Catena Corporation - Provides Lyee computer system development, consulting and maintenance, and sales of information technology related products. Based in Tokyo.
|  | Celartem Technology Inc. - Producer of software used in photograph and picture design editing. Based in Osaka.
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 | Chowdhury Software Services Inc. - Offers computer aided chemical engineering software for petrochemical, chemical, pharmaceutical, food and environment industries, and fuel cell development.
|  | Compu-Express - Offers computer problem troubleshooting services, including virus recovery and protection, software installation, connection problems, peripheral device trouble, and data recovery.
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 | CORE Corporation - Maker of telecommunications equipment, PC network equipment, and software. With company profile, history, and organization information.
|  | Cresco, Ltd. - Maker IT networks for finance, communications, and distribution related systems as well as audio equipment and hardware.
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 | CSK Communications Corporation - Gives technical support services for telecommunications and related products, including training, IT technical support, and consulting.
|  | CSK Corporation - Provides computer services, consisting of programming and software development, facilities management, and data entry services, and retails and leases computers and related accessories.
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 | CSK Network Systems Corporation - Offers consulting and design services for IT network configuration, system construction and operation.
|  | Cube System, Inc. - Provides IT systems services, system consulting, database construction and management.
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