| Dev Systems Limited | | Live |
| XOR SYSTEMS LIMITED | | Live |
| ZF Systems Limited | | Live |
| QSM SYSTEMS LIMITED | | Live |
| WTT Systems Limited | | Live |
| PT Systems Limited | | Live |
| aavaQ systems Limited | Private company limited by shares | Live |
| ACME SYSTEMS LIMITED | Private company limited by shares | Live |
| ACORN SYSTEMS LIMITED | Private company limited by shares | Live |
| ACTIT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ADVANCED SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| ADVANCED INCO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| V2G ADVANCED INFRA SYSTEMS HK LIMITED | Private company limited by shares | Live |
| ALSTON SYSTEMS LIMITED | Private company limited by shares | Live |
| AMALGA SYSTEMS LIMITED | Private company limited by shares | Live |
| Amarillo Systems Limited | Private company limited by shares | Live |
| AMBIENT SYSTEMS LIMITED | | Live |
| AMPLE SYSTEMS LIMITED | Private company limited by shares | Live |
| Ample Systems HK Limited | Private company limited by shares | Live |
| AMUSEMENT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ANOVA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| d3 Systems (APAC) Limited | Private company limited by shares | Live |
| AROMATIC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| NHD SYSTEMS (ASIA) LIMITED | Private company limited by shares | Live |
| ISC SYSTEMS ASIA LIMITED | Private company limited by shares | Dissolved |
| AFA SYSTEMS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| RSA SYSTEMS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| SYSTEMS ASIA LIMITED | Private company limited by shares | Live |
| ISA SYSTEMS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| RAE SYSTEMS (ASIA) LIMITED | Private company limited by shares | Live |
| G. C. SYSTEMS (ASIA) LIMITED | Private company limited by shares | Live |
| NEW SYSTEMS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| AD SYSTEMS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| TM SYSTEMS ASIA LIMITED | Private company limited by shares | Live |
| AE SYSTEMS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| TSE Systems Asia Limited | Private company limited by shares | Live |
| GAP SYSTEMS ASIA LIMITED | Private company limited by shares | Live |
| TPD SYSTEMS ASIA LIMITED | Private company limited by shares | Live |
| DR & D SYSTEMS ASIA LIMITED | Private company limited by shares | Live |
| CFH Systems Asia Limited | Private company limited by shares | Live |
| Goo Systems Asia Limited | Private company limited by shares | Live |
| SAS Asia Bar Systems Limited | Private company limited by shares | Live |
| NE Systems Asia Limited | Private company limited by shares | Live |
| MI Systems Asia Limited | Private company limited by shares | Live |
| OLI SYSTEMS (ASIA) LIMITED | | Live |
| AGRI SYSTEMS ASIA LIMITED | Private company limited by shares | Dissolved |
| COMPUTECH SYSTEMS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| FIRST ASIA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| IFCO SYSTEMS ASIA LIMITED | Private company limited by shares | Live |
| LAZOR SYSTEMS ASIA LIMITED | Private company limited by shares | Dissolved |
| MECHOSHADE SYSTEMS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| Prominent (Asia) Systems Company Limited | Private company limited by shares | Live |
| ROSS SYSTEMS ASIA LIMITED | Private company limited by shares | Dissolved |
| SecuRam Systems (Asia) Limited | Private company limited by shares | Live |
| TSSI SYSTEMS (ASIA) LIMITED | Private company limited by shares | Live |
| Caplin Systems (AsiaPac) Limited | Private company limited by shares | Live |
| ASTROMARK SYSTEMS LIMITED | | Live |
| Augmented Systems Limited | Private company limited by shares | Live |
| AUSTECH SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| AUTOMATION SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| AUTOMATION SYSTEMS LIMITED | Private company limited by shares | Live |
| AVALON SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Aztec Systems Limited | Private company limited by shares | Live |
| BARTER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| B.E.L. SYSTEMS LIMITED | Private company limited by shares | Live |
| BELL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BEST SYSTEMS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| BESTRONIC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BioInformatics Systems Limited | Private company limited by shares | Dissolved |
| BIOMED SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BizCON Systems Limited | Private company limited by shares | Live |
| BOLTOM SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| BONCAFINO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BULUCO SOFTWARE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| C BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| JSC BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CAPITAL BUSINESS SYSTEMS LIMITED | Private company limited by shares | Live |
| EASTERN BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BUSINESS FIRST SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ICON BUSINESS SYSTEMS LIMITED | Private company limited by shares | Live |
| MOTIVITY BUSINESS SYSTEMS LIMITED | Private company limited by shares | Live |
| OMNI BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SCHEMA BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| C & E CABINET SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CABLETRON SYSTEMS LIMITED | Private company limited by shares | Live Commenced dormancy on 23-Dec-1997 |
| CADENCE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CADSMART SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CAPITAL SYSTEMS LIMITED | Private company limited by shares | Live |
| EZ CARD SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| K&G CARPET SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CashCom Systems Limited | | Live |
| CASTLEFORCE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CELGO SYSTEMS LIMITED | Private company limited by shares | Live |
| SYSTEMS CENTER LIMITED | Private company limited by shares | Dissolved |
| CHAD SYSTEMS LIMITED | Private company limited by shares | Live |
| CHANNEL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CHANNEL SYSTEMS LIMITED | Private company limited by shares | Live |
| CHAPLET SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CHIU HWA SYSTEMS LIMITED | Private company limited by shares | Dissolved |