| TOP SYSTEM LIMITED | Private company limited by shares | Dissolved |
| G2G SYSTEM LIMITED | Private company limited by shares | Dissolved |
| WIN SYSTEM LIMITED | Private company limited by shares | Dissolved |
| J. F. SYSTEM LIMITED | Private company limited by shares | Dissolved |
| PHY SYSTEM LIMITED | Private company limited by shares | Dissolved |
| JET SYSTEM LIMITED | Private company limited by shares | Live |
| AFP SYSTEM LIMITED | Private company limited by shares | Dissolved |
| M&S SYSTEM LIMITED | Private company limited by shares | Dissolved |
| WDC SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| ART SYSTEM LIMITED | Private company limited by shares | Live |
| KNS SYSTEM LIMITED | Private company limited by shares | Live |
| TOP SYSTEM LIMITED | Private company limited by shares | Live |
| D S System Limited | Private company limited by shares | Dissolved |
| SLM SYSTEM LIMITED | Private company limited by shares | Live |
| SAR SYSTEM LIMITED | Private company limited by shares | Live |
| Gad System Limited | Private company limited by shares | Dissolved |
| 3R SYSTEM LIMITED | Private company limited by shares | Dissolved |
| G2 System Limited | Private company limited by shares | Live |
| TM SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| TOP ONE SYSTEM LIMITED | Private company limited by shares | Dissolved |
| PMC SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| V5 SYSTEM LIMITED | Private company limited by shares | Live |
| NBL SYSTEM LIMITED | Private company limited by shares | Live |
| H&Y SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| BBH SYSTEM LIMITED | Private company limited by shares | Live |
| P2 System Limited | Private company limited by shares | Live |
| SKY SYSTEM LIMITED | Private company limited by shares | Live |
| K & T System Limited | Private company limited by shares | Dissolved |
| KAE System Limited | Private company limited by shares | Live |
| QBS SYSTEM LIMITED | Private company limited by shares | Live |
| W & H System Limited | Private company limited by shares | Live |
| System 2 Limited | Private company limited by shares | Live |
| ECR System Company Limited | Private company limited by shares | Live |
| M & E SYSTEM LIMITED | Private company limited by shares | Live |
| AI SYSTEM LIMITED | Private company limited by shares | Dissolved |
| MRL SYSTEM LIMITED | Private company limited by shares | Live |
| PRL System Limited | Private company limited by shares | Live |
| LNK SYSTEM LIMITED | Private company limited by shares | Dissolved |
| FTE SYSTEM LIMITED | Private company limited by shares | Live |
| AD SYSTEM LIMITED | Private company limited by shares | Live |
| LiS System Limited | Private company limited by shares | Live |
| D & J SYSTEM LIMITED | Private company limited by shares | Dissolved |
| SUV SYSTEM LIMITED | Private company limited by shares | Live |
| PGM SYSTEM LIMITED | Private company limited by shares | Live |
| SYSTEM TEC LIMITED | Private company limited by shares | Dissolved |
| FAR SYSTEM LIMITED | Private company limited by shares | Dissolved |
| MIN SYSTEM LIMITED | Private company limited by shares | Live |
| BEE SYSTEM LIMITED | Private company limited by shares | Live |
| MMJ SYSTEM LIMITED | Private company limited by shares | Dissolved |
| WAI YIP SYSTEM LIMITED | Private company limited by shares | Live |
| B & J System Limited | Private company limited by shares | Live |
| ALL ONE SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| CT SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| MY SYSTEM ET LIMITED | Private company limited by shares | Live |
| Noa System. Co. Limited | Private company limited by shares | Live |
| AG System Limited | Private company limited by shares | Live |
| PI SYSTEM LIMITED | Private company limited by shares | Live |
| 3A SYSTEM LIMITED | Private company limited by shares | Live |
| GT SYSTEM LIMITED | Private company limited by shares | Live |
| KEM SYSTEM LIMITED | Private company limited by shares | Live |
| ABK System Limited | Private company limited by shares | Live |
| VBS SYSTEM LIMITED | Private company limited by shares | Live |
| MRD System Limited | Private company limited by shares | Live |
| ALL WIN SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| MY SYSTEM LIMITED | Private company limited by shares | Live |
| AFO SYSTEM LIMITED | Private company limited by shares | Live |
| J System Limited | Private company limited by shares | Live |
| Ace system Limited | Private company limited by shares | Live |
| JC System Limited | Private company limited by shares | Live |
| ACT SYSTEM LIMITED | Private company limited by shares | Live |
| A&Y System Co. Limited | Private company limited by shares | Live |
| Zen System Limited | Private company limited by shares | Live |
| NEW SYSTEM LIMITED | Private company limited by shares | Live |
| MY SYSTEM HK LIMITED | Private company limited by shares | Live |
| PGM System Limited | Private company limited by shares | Live |
| 3D PDF System Limited | Private company limited by shares | Live |
| P&T System Company Limited | Private company limited by shares | Live |
| CNR SYSTEM LIMITED | Private company limited by shares | Live |
| SUN WAY SYSTEM LIMITED | Private company limited by shares | Live |
| C & S System Limited | Private company limited by shares | Live |
| LK SYSTEM HK LIMITED | Private company limited by shares | Live |
| EMC SYSTEM LIMITED | Private company limited by shares | Live |
| CCB System Limited | Private company limited by shares | Live |
| ART SYSTEM LIMITED | Private company limited by shares | Live |
| MAR SYSTEM LIMITED | Private company limited by shares | Live |
| I3 System Limited | Private company limited by shares | Live |
| UAV SYSTEM LIMITED | Private company limited by shares | Live |
| ATK System Limited | Private company limited by shares | Live |
| CET SYSTEM LIMITED | Private company limited by shares | Live |
| AGL SYSTEM LIMITED | Private company limited by shares | Live |
| AFI System Limited | Private company limited by shares | Live |
| PRO ONE SYSTEM LIMITED | Private company limited by shares | Live |
| RWA SYSTEM LIMITED | Private company limited by shares | Live |
| Hi5 System Limited | Private company limited by shares | Live |
| SRA System Limited | Private company limited by shares | Live |
| ELD SYSTEM LIMITED | Private company limited by shares | Live |
| 101 SYSTEM LIMITED | Private company limited by shares | Live |
| JK System Limited | Private company limited by shares | Live |
| Y&Y SYSTEM LIMITED | | Live |
| PGM SYSTEM LIMITED | | Live |