About us (English)

Company Name

ARK Systems Co., Ltd.

Main Business

Mainframe Solutions

We have acquired the experience concerning the technology and the construction knowhow that masters the system for many years.
In a basic technological area of the System z architecture, we will offer the information technology environment under which the business application system can be operated best.

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Mainframe, System Infrastructure, System z, z/OS, DB2, CICS, WebSphereMQ, Network, Operation Management, Security, System Management, Systems Enabling

Open system Solutions

We offer the best infrastructure environment for the importance and the service level of the business application. Various product technologies are combined, and we will design and implement the system environment that it is the most efficient and safety is high.

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Open System Infrastructures, LINUX, Solaris, Oracle, MySQL, Network, Performance, Availability, Clustering, System Integration

Web-Based system Solutions

We quickly construct the Web application system that agrees with the business demand by making good use of an advanced system development skill and knowhow.
We will support it over whole of the life cycle of the application system.

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Application development, Java2EE, .Net, Development Process Standardization, Application Framework, Open Source, Struts, Hibernate, Spring

IT management Solutions

We will support all stages from the project and the plan to execution in the system operation management at customer's IT center, and offer the system operation management technology that it is efficient and reliability is high. Moreover, promotion and the improvement of IT operation management are achieved with the customer.

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IT Project, Operation Management Plan during year, System Operation Management, ITIL Application Consulting, Budget Management, Cooperation Company Management, RFP making, BCP/DR Plan making, System evaluation & improvement, System Maintenance Management

Company Profile

HEAD OFFICE Nihonbashi Hakozaki BLDG.
24-1, Nihonbashi Hakozaki-cho, Chuo-ku, Tokyo, 103-0015, Japan
Telephone : +81 3 3666 8140
Facsimile : +81 3 3666 8143
Establishment July 1, 1986
The Capital 150 million yen
Shareholder CAC Corporation
Directors President and Representative Director : Hidefumi Kowase
Director : Makoto Koide
Director : Nobuyuki Michinaga
Director : Hiroyuki Ohnuma
Director : Eisuke Nakanishi
Director : Shinjyu Tanno
Auditor : Masayuki Kobayashi
Number of employees 182 people(As of April 1, 2019)
Sales 3 billion 973 million yen(results of period on December, 2018)
The main member group Japan Information Technology Services Industry Association (JISA),
Nihonbashi Corporation Association