| CSL COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| SM COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| NEW SYSTEM COMPUTER COMPANY LIMITED | Private company limited by shares | Dissolved |
| MCA COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| A1 COMPUTER SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| JDR COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| ATL COMPUTER SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| M & T COMPUTER SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| ADA COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| SYSTEM 101 COMPUTER LIMITED | Private company limited by shares | Dissolved |
| CHANNEL 8 COMPUTER SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| CREATIVE COMPUTER SYSTEM LIMITED | Private company limited by shares | Live |
| CYBER SYSTEM COMPUTER LIMITED | Private company limited by shares | Live |
| JJ CYBER COMPUTER SYSTEM LIMITED | Private company limited by shares | Live |
| CYBERNETTE COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| DREAMER COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| EsPLatform Computer System Limited | Private company limited by shares | Live |
| HOGAN COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| MICA COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| PARADISE COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| STARS COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| SKY TEAM COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| TRUSTFUL COMPUTER SYSTEM LIMITED | Private company limited by shares | Dissolved |
| VTAB COMPUTER SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| Weiling Computer System Limited | Private company limited by shares | Live |
| SYSTEMATIC COMPUTER LIMITED | Private company limited by shares | Dissolved |
| C M I COMPUTER SYSTEMS H K LIMITED | Private company limited by shares | Dissolved |
| DAW COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BMS COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SUN COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ATT COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| IPL COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| APS COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| R & B COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| C & D COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| FCS COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| TOP SYSTEMS COMPUTER LIMITED | Private company limited by shares | Live |
| YAC COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| HDR COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| JAY COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BAS COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| L & T COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| J & L COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ABC COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| TZE LOI COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DAS COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| A&A COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| TOP COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| EPS COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| C & S COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| SUN YUE COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| A&K COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| ALPAX COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ARGO COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| ASIATECH COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BORGER COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DATATEC COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| ENUX COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| EMC COMPUTER SYSTEMS (FE) LIMITED | Private company limited by shares | Live |
| FORUM COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| NEW FRONTIER COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| INCORPORATED COMPANY COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| INDAR COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| LUK'S COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| New-Gene Computer Systems Limited | Private company limited by shares | Dissolved |
| RELIANT COMPUTER SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROSS COMPUTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SEQUENT COMPUTER SYSTEMS ASIA LIMITED | Private company limited by shares | Dissolved |
| SOFTLAND COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| TECHLAND COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| TRIUMPH COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| VISUALDATA COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| Taitech Computer System Limited | Private company limited by shares | Live |
| TAPON COMPUTER COMPANY LIMITED | Private company limited by shares | Dissolved |
| KIM TARO COMPUTER LIMITED | Private company limited by shares | Dissolved |
| TASAN COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| IVY TEAM COMPUTER COMPANY LIMITED | Private company limited by shares | Live |
| NEW TECH COMPUTER HOLDING LIMITED | Private company limited by shares | Dissolved |
| TECH COMPUTER SYSTEMS INTEGRATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIME TECH COMPUTER LIMITED | Private company limited by shares | Dissolved |
| CTC COMPUTER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| GDS COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| JET COMPUTER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| C & Y COMPUTER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| COMPUTER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| TOS COMPUTER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| ANA COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| MJM COMPUTER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| EDU COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| EIN COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| J & C COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SKY COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DA WEI COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ASK COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| KTC COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CST Computer Technology Limited | Private company limited by shares | Dissolved |
| HK HUA YU COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TCH Computer Technology Limited | Private company limited by shares | Live |
| C&B COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| C2 Computer Technology Limited | Private company limited by shares | Live |