| 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 |
| WH Systems Limited | Private company limited by shares | Dissolved |
| LSM Systems Limited | Private company limited by shares | Dissolved |
| RCL SYSTEMS LIMITED | Private company limited by shares | Live |
| GRD Systems Limited | Private company limited by shares | Live |
| RTO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| BLI SYSTEMS LIMITED | Private company limited by shares | Live |
| MIO Systems Limited | Private company limited by shares | Dissolved |
| ITO Systems Limited | Private company limited by shares | Live |
| FX Systems Limited | Private company limited by shares | Dissolved |
| TI Systems Limited | Private company limited by shares | Live |
| BIT SYSTEMS LIMITED | Private company limited by shares | Live |
| EBS SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| LB SYSTEMS LIMITED | Private company limited by shares | Live |
| ARC Systems Limited | Private company limited by shares | Dissolved |
| EVO SYSTEMS LIMITED | Private company limited by shares | Live |
| C2 Systems Limited | Private company limited by shares | Live |
| LI SYSTEMS LIMITED | Private company limited by shares | Live |
| KOI SYSTEMS LIMITED | Private company limited by shares | Live |
| KLA SYSTEMS PTE LIMITED | Private company limited by shares | Live |
| TAT Systems Limited | Private company limited by shares | Live |
| L 2 SYSTEMS LIMITED | Private company limited by shares | Live |
| DPS Systems Limited | Private company limited by shares | Dissolved |
| NF Systems Limited | Private company limited by shares | Live |
| NRG SYSTEMS HK LIMITED | Private company limited by shares | Live |
| LTB SYSTEMS LIMITED | Private company limited by shares | Live |
| PRO SYSTEMS LIMITED | Private company limited by shares | Live |
| AFP Systems Limited | Private company limited by shares | Live |
| GAM Systems Limited | Private company limited by shares | Live |
| BNN SYSTEMS LIMITED | Private company limited by shares | Live |
| ICT SYSTEMS LIMITED | Private company limited by shares | Live |
| FLY SYSTEMS LIMITED | Private company limited by shares | Live |
| KSN Systems Limited | Private company limited by shares | Live |
| CAN BE SYSTEMS LIMITED | Private company limited by shares | Live |
| DMS SYSTEMS LIMITED | Private company limited by shares | Live |
| Nes Systems Limited | Private company limited by shares | Live |
| AMP SYSTEMS LIMITED | Private company limited by shares | Live |
| VID SYSTEMS LIMITED | Private company limited by shares | Live |
| Cx Systems Limited | Private company limited by shares | Live |
| G & D Systems Limited | Private company limited by shares | Live |
| CDF SYSTEMS HK LIMITED | Private company limited by shares | Live |
| TAG SYSTEMS LIMITED | Private company limited by shares | Live |
| TBR Systems Limited | Private company limited by shares | Live |
| FIB SYSTEMS LIMITED | Private company limited by shares | Live |
| MC Systems Limited | Private company limited by shares | Live |
| GSM Systems Limited | Private company limited by shares | Live |
| GIT SYSTEMS LIMITED | Private company limited by shares | Live |
| All Systems Go Limited | Private company limited by shares | Live |
| 2AD SYSTEMS LIMITED | Private company limited by shares | Live |
| ITI SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| 4U Systems Limited | Private company limited by shares | Live |
| I.D SYSTEMS LIMITED | Private company limited by shares | Live |
| ACS SYSTEMS LIMITED | Private company limited by shares | Live |
| DG Systems Limited | Private company limited by shares | Live |
| Tai Systems Limited | Private company limited by shares | Live |
| iN Systems Limited | Private company limited by shares | Live |
| AL SYSTEMS LIMITED | Private company limited by shares | Live |
| ANI SYSTEMS LIMITED | Private company limited by shares | Live |
| HM SYSTEMS LIMITED | Private company limited by shares | Live |
| HH SYSTEMS LIMITED | Private company limited by shares | Live |
| MK Systems HK Limited | Private company limited by shares | Live |
| ZT Systems HK Limited | Private company limited by shares | Live |
| IST SYSTEMS LIMITED | Private company limited by shares | Live |
| Fox Systems Limited | Private company limited by shares | Live |
| Bay Systems Limited | Private company limited by shares | Live |
| Pin Me Systems Limited | Private company limited by shares | Live |
| One Two Go Systems Limited | Private company limited by shares | Live |
| OK SYSTEMS LIMITED | Private company limited by shares | Live |
| K8 Systems Limited | Private company limited by shares | Live |
| SOS SYSTEMS LIMITED | Private company limited by shares | Live |
| V SYSTEMS LIMITED | Private company limited by shares | Live |
| Lan GV Systems Limited | Private company limited by shares | Live |
| DPN Systems Limited | Private company limited by shares | Live |
| FLI SYSTEMS LIMITED | Private company limited by shares | Live |
| LIG AI Systems LIMITED | | Live |
| ALD Systems Limited | | Live |
| OAP SYSTEMS LIMITED | | Live |
| 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 |