| 1962 |
- Establishes Hitachi Electronics Services Co., Ltd.
|
| 2011 |
- Merges with Hitachi Information Systems, Ltd., and changes company name to Hitachi Systems, Ltd.
|
| 2012 |
- Acquires Cumulus Systems Incorporated, a software company in the United States
|
| 2013 |
- Establishes Hitachi Sunway Information Systems Sdn. Bhd., an IT service joint venture, with a Malaysian IT solution provider
|
| 2014 |
- Establishes Hitachi Systems Power Services, Ltd.
- Acquires Hitachi Systems Micro Clinic Pvt. Ltd. in India
- Acquires Hitachi Systems Networks, Ltd.
- Acquires Hitachi Sunway Data Centre Services Sdn. Bhd. in Malaysia
- Acquires SecureBrain Corporation
|
| 2015 |
- Acquires Above Security Inc. in Canada
|
| 2017 |
- Transfers all businesses from Hitachi Systems Facility Services, Ltd.to Hitachi Systems Techno Services, Ltd., and changes company name to Hitachi Systems Field Services, Ltd.
- Above Security Inc. has changed its name to Hitachi Systems Security Inc.
|
| 2021 |
- Hitachi Systems Field Services, Ltd. (surviving company) merges with Hitachi Systems Networks, Ltd.
|
| 2022 |
- The name of Hitachi Systems Micro Clinic Pvt. Ltd. has been changed to Hitachi Systems India Pvt. Ltd.
- Cumulus Systems Inc. has changed its name to Hitachi Systems Trusted Cyber Management Inc. and made Hitachi Systems Security Inc. of Canada its subsidiary.
|
| 2024 |
- Merges with Shikoku Hitachi Systems, Ltd.
Shikoku Hitachi Systems' businesses related to maintenance and construction work are transferred to Hitachi Systems Field Service, Ltd.
- Merges with SecureBrain Corporation
|
