Overseas
- SCSK USA Inc.
- SCSK Europe Ltd.
- SCSK Shanghai Limited
- SCSK Asia Pacific Pte. Ltd.
- PT SCSK Global Indonesia
- SCSK Myanmar Ltd.
Domestic
- SCSK KYUSHU CORPORATION
- SCSK HOKKAIDO CORPORATION
- JIEC Co., Ltd.
- WinTechnology Corporation
- SCSK ServiceWare Corporation
- VeriServe Corporation
- SCSK PRESCENDO CORPORATION
- Allied Engineering Corporation
- CSI SOLUTIONS Corporation
- SCSK Nearshore Systems Corporation
- VA Linux Systems Japan K.K.
- SCSK SYSTEM MANAGEMENT CORPORATION
- SDC Corporation
- Skeed Co., Ltd.
- TOKYO GREEN SYSTEMS CORPORATION
- ARGO GRAPHICS Inc.
- Gran Manibus Co., Ltd.
