| Info-Tech Systems Integrators (HK) Limited | Private company limited by shares | Live |
| MERIDIAN INTEGRATORS (HK) LIMITED | Private company limited by shares | Dissolved |
| SYSTEM INTEGRATORS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC SYSTEM INTEGRATORS LIMITED | Private company limited by shares | Dissolved |
| SMART SYSTEM INTEGRATORS LIMITED | Private company limited by shares | Live |
| SYSTEMS INTEGRATORS LIMITED | Private company limited by shares | Live |
| SYSTEMS INTEGRATORS (ASIA) LIMITED | Private company limited by shares | Live |
| VISUAL SYSTEM INTEGRATORS LIMITED | Private company limited by shares | Dissolved |