| B O B SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| GMP AIR SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| VCP SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| KW SYSTEMS LIMITED -THE- | Private company limited by shares | Dissolved |
| CTS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PIL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| TAI ON SYSTEMS CO. LIMITED | Private company limited by shares | Dissolved |
| I & C SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| NEW ERA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| NCI SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| JH SYSTEMS LIMITED | Private company limited by shares | Live |
| CJB SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PNB IFL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| IBC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CMU SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Q M SYSTEMS LIMITED | Private company limited by shares | Live |
| ETC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| IBS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| AEC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CAS SYSTEMS LIMITED | Private company limited by shares | Live |
| UNI SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| E SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| A3 SYSTEMS LIMITED | Private company limited by shares | Live |
| TWO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| D & D SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| AIC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DVM SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CAU EV Systems Limited | Private company limited by shares | Live |
| LP SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| B & B SYSTEMS LIMITED | Private company limited by shares | Live |
| P & R SYSTEMS LIMITED | Private company limited by shares | Live |
| BEE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DNA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| GO ON SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| E & A SYSTEMS LIMITED | Private company limited by shares | Live |
| BC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| UTT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| TLC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ET SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| I T SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| 4I SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CVC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DE COM SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| RIM SYSTEMS LIMITED | Private company limited by shares | Live |
| DOT ONE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ANT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| C6 SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SYSTEMS ART LIMITED | Private company limited by shares | Dissolved |
| REX SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| C & C SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ECL SYSTEMS LIMITED | Private company limited by shares | Live |
| EME SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ZIM SYSTEMS LIMITED | Private company limited by shares | Live |
| EC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| WIZ SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| R & D SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| G4 SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| VT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| E&T SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| E & B SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PTE SYSTEMS LIMITED | Private company limited by shares | Live |
| SKY SYSTEMS LIMITED | Private company limited by shares | Live |
| P & Y SYSTEMS LIMITED | Private company limited by shares | Live |
| RNC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| 2C SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MAX SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| OT SYSTEMS LIMITED | Private company limited by shares | Live |
| WEP SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| D&Z SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ACO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| A & P Systems Limited | Private company limited by shares | Dissolved |
| CTC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SYSTEM-S LIMITED | Private company limited by shares | Dissolved |
| WDC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| OPM SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| NBJ SYSTEMS LIMITED | Private company limited by shares | Live |
| MEE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| RSP Systems HK Limited | Private company limited by shares | Dissolved |
| VW Systems Limited | Private company limited by shares | Live |
| C-4 SYSTEMS LIMITED | Private company limited by shares | Live |
| RZ SYSTEMS LIMITED | Private company limited by shares | Live |
| RTL Systems Limited | Private company limited by shares | Dissolved |
| AMC SYSTEMS LIMITED | Private company limited by shares | Live |
| CAU EM Systems Limited | Private company limited by shares | Live |
| DBX Systems Limited | Private company limited by shares | Dissolved |
| MD Systems Limited | Private company limited by shares | Live |
| U2 Systems Limited | Private company limited by shares | Live |
| DAS SYSTEMS LIMITED | Private company limited by shares | Live |
| ZAT SYSTEMS LIMITED | Private company limited by shares | Live |
| MG SYSTEMS LIMITED | Private company limited by shares | Live Commenced dormancy on 06-Feb-2015 |
| HK SYSTEMS LIMITED | Private company limited by shares | Live |
| 4G SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MVI SYSTEMS LIMITED | Private company limited by shares | Live |
| QUA TER NES SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| PTC SYSTEMS HK LIMITED | Private company limited by shares | Live |
| THT SYSTEMS LIMITED | Private company limited by shares | Live |
| GZ Systems Limited | Private company limited by shares | Live |
| AW SYSTEMS LIMITED | Private company limited by shares | Live |
| F1 SYSTEMS LIMITED | Private company limited by shares | Live |
| TLR SYSTEMS LIMITED | Private company limited by shares | Dissolved |