Sistena Co., Ltd.

Established Katena Business Services Co., Ltd.

Commenced outsourced key punch business.

Commenced key punch organization dispatch business.

Start of personnel dispatch business.

Start of software development business. The company began providing information processing services from the early days before IT became widespread in Japan.

Our company began providing information processing services from the early days before IT became widespread in Japan.

Start of operations and maintenance business.

Start of OA equipment sales business.

Established Hennm Engineering Co., Ltd.

The current Chairman and CEO, Aiko Itami, was captivated by the future potential of microcomputer software and established Hennmi Engineering Co., Ltd. in March 1983.

Established Henmi Engineering Co., Ltd.

Changed corporate name to System Pro Inc.

Start of total support business for OA equipment.

Start of PC training business.

Start of maintenance service business. The company also pioneered PC classroom and support services that are now commonplace.

In February 1984, the company changed its name to System Pro Co., Ltd.

Renamed to System Pro Co., Ltd.

Changed corporate name to Katen Inc. Developed first in-house consumer software, the learning software 'Computer Drill'. Also began embedded development for industry and consumer software development.

We developed our first in-house consumer software, the learning software 'Computer Drill'. We also started embedded development for industry and consumer software development.

Established Tokyo Business Service Co., Ltd. in a joint venture with the Tokyo Metropolitan Government (currently a consolidated subsidiary).

Established as a joint venture with the Tokyo Metropolitan Government (currently a consolidated subsidiary).

In 1988, successfully developed Japan's first competitive online game, 'Mahjong Club'.

Successfully developed 'Mahjong Club', Japan's first competitive online game.

Absorbed and merged with Computer Land Japan Inc., intensifying the expansion of PC shop operations.

Expanded our PC shop operations.

Started network business through PC communications, leading the way in diversity initiatives among companies.

We have been pioneering diversity initiatives ahead of other companies.

Start of translation software development and sales business.

Listed on the Second Section of the Tokyo Stock Exchange.

Released the online game 'Kekka Densetsu' (Horse Racing Legend).

Through mergers with various companies, established a comprehensive computer trading company covering mainframes to PCs, software development, and hardware/software sales and distribution. As an IT company, established a system to meet all customer demands.

From mainframes to personal computers, covering software development and hardware/software sales and distribution.

Leveraging expertise in communication firmware development, the company entered the mobile phone software development field, using PHS software development as a stepping stone.

Entered the mobile phone software development field.

Expanded communication firmware development business. Successfully developed PHS and PDC sequentially, taking the lead in the shift to mobile.

Successfully developed PHS and PDC, leading the shift to mobile.

Opened the marketplace site JOYNT-WORLD to sell in-house developed online games. Launched various apps including Horse Racing Legend, accelerating online gaming during a time when it was not yet mainstream.

Launched various applications including the horse racing legend. Became mainstream during a time when online gaming was not yet common.

Listed on the Osaka Stock Exchange Nasdaq Japan market.

Listed on Nasdaq Japan in August 2002.

Listed on Nasdaq Japan.

Listed on the Tokyo Stock Exchange Second Section.

Listed on the Second Section of the Tokyo Stock Exchange in November 2004.

Listed on the Second Section of the Tokyo Stock Exchange.

Entered into a business partnership with Koyo Information Systems Co., Ltd.

Acquired shares of ProVision Co., Ltd., a subsidiary of Koyo Information Systems Co., Ltd., and made it a consolidated subsidiary.

Designated for the Tokyo Stock Exchange First Section.

Started a new business in Tokyo with a quality verification (evaluation) specialist team at subsidiary ProVision Co., Ltd., and established Reenciption Technologies Co., Ltd. as an IT security joint venture with Mitsubishi Corporation.

Converted to a consolidated subsidiary.

Promoted to the First Section of the Tokyo Stock Exchange in October 2005.

Promoted to the First Section of the Tokyo Stock Exchange.

Started a business in Tokyo with a specialized quality verification (evaluation) team.

Participated in Qualcomm's BREW Developer Alliance Program.

Acquired shares of Koyo Information Systems Co., Ltd. (applying the equity method, becoming an associate).

Converted to an associate company under the equity method.

Entered into a capital and business partnership with Katen Co., Ltd. and participated in management (applying the equity method, becoming an associate).

Absorbed subsidiary Flagship Co., Ltd. into the company.

Participated in management (converted to an associate company under the equity method).

Joined the OESF (Open Embedded Software Foundation) aiming to promote the use of Android in embedded devices, and started providing Cloud Solution services jointly with Katen Co., Ltd.

Signed a merger agreement with Katen Co., Ltd.

Aiming to promote the use of Android in embedded devices.

Merged with Katen Co., Ltd. and renamed the company to Sispuro Katen Co., Ltd.

Acquired shares of Little Soft Co., Ltd. (applying the equity method, becoming an associate).

Moved headquarters to Shiodome Building in Minato-ku, Tokyo, and changed the company name to Systena Co., Ltd. (decided by employee public offering).

Established Gaya Co., Ltd., a subsidiary whose business is planning, developing, and operating smartphone applications.

Merged with Katena Co., Ltd., an associate listed on the Second Section of the Tokyo Stock Exchange, in April 2010.

Merged with KATENA Co., Ltd.

Converted to an associate company under the equity method for cloud system development.

Changed the company name to 'Sistena Co., Ltd.' (decided by employee public offering).

In July of the same year, changed its name to Systema Co., Ltd. and embarked on a new start.

Renamed to Sistena Co., Ltd. and embarked on a new start.

Planning, development, and operation of smartphone applications.

Acquired shares of IDY Co., Ltd., a mobile device manufacturing company, and made it a consolidated subsidiary.

Engaged in mobile device manufacturing.

Established a Hiroshima branch office in Higashihiroshima City (now Hiroshima office).

Established in Higashihiroshima City.

Converted to a consolidated subsidiary.

A stepping stone to entering the automotive industry.

Currently added a Nagoya office.

Converted to a consolidated subsidiary.

Converted to a consolidated subsidiary.

Established Systena Vietnam Co., Ltd. in Hanoi, Vietnam (made it a consolidated subsidiary).

Division of the Solution Design Headquarters.

Opened Takeshiba Design Studio, a sub-office of the Solution Design Headquarters, in the International Hamamatsucho Building.

Subsidiary engaged in IoT, robotics, fintech, and social media related businesses.

Established Internet of Things Co., Ltd., a subsidiary involved in IoT, robotics, fintech, and social media related businesses.

Converted into an associate under the equity method.

Acquisition of shares of StrongAuth, Inc. (now StrongKey, Inc.) in the United States (converted to an associate under the equity method)

Established in Texas, USA (converted to an associate under the equity method).

Established ONE Tech, Inc. in Texas, United States (converted to an associate under the equity method)

Sub-office of Osaka branch.

Opened the Kobe Innovation Lab (now Kobe Office) as a branch of the Osaka office

Kawasaki City, Kanagawa Prefecture.

Established Kawasaki Design Studio in Kawasaki City, Kanagawa Prefecture

Matsuyama City, Ehime Prefecture.

Established Matsuyama Innovation Lab (now Matsuyama Office) in Matsuyama City, Ehime Prefecture

Established MINGAR Co., Ltd.

Kyoto City.

Established Kyoto Innovation Lab (now Kyoto Office) in Kyoto City

Utsunomiya City.

Established North Kanto Office in Utsunomiya City

Toyota City.

Established Tokai Office in Toyota City

Acquisition of shares of SyncroLogic Co., Ltd. (converted to an associate under the equity method)

Additional acquisition of shares of SyncroLogic Co., Ltd. (converted to a consolidated subsidiary)