| LUCKNOW SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Lumen Systems Limited | Private company limited by shares | Live |
| Lunchbox Systems Limited | Private company limited by shares | Live |
| LYNX SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Manatee Systems Limited | Private company limited by shares | Live |
| MANDATE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MANSON SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| E&F Systems Manufacturers Limited | Private company limited by shares | Dissolved |
| MAPPA SYSTEMS LIMITED | Private company limited by shares | Live |
| MARVEL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MARVEL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MEGA SYSTEMS LIMITED | Private company limited by shares | Live |
| MEGA SUN SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MEGASOFT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MEGATECH SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MEMORY SYSTEMS LIMITED | Private company limited by shares | Live |
| MEMORY SYSTEMS PTE LIMITED | Private company limited by shares | Dissolved |
| MICAT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MICROSOLVE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MODERNHOME SYSTEMS LIMITED | Private company limited by shares | Live |
| MODERNTECH SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Morgan Systems Limited | Private company limited by shares | Live |
| MULTI-PLUS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MULTISOFT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MUSION SYSTEMS LIMITED | Private company limited by shares | Live |
| Nasthon Systems Limited | Private company limited by shares | Live |
| NETCOM SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| NETCOM SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| NETSURF SYSTEMS LIMITED | Private company limited by shares | Live |
| NewTrek Systems Limited | Private company limited by shares | Live |
| NexGen Systems Limited | Private company limited by shares | Dissolved |
| NORTHERN SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| NOVA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| NOVATECH SYSTEMS LIMITED | Private company limited by shares | Live |
| NuCom Systems Limited | Private company limited by shares | Live |
| Y NUMERIC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Occam Systems Limited | Private company limited by shares | Live |
| OCEANTECH SYSTEMS LIMITED | Private company limited by shares | Live |
| OCTAGON SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| OFFICE SYSTEMS LIMITED | Private company limited by shares | Live |
| GOODWILL OFFICE SYSTEMS LIMITED | Private company limited by shares | Live |
| KAM YUEN OFFICE SYSTEMS LIMITED | Private company limited by shares | Live |
| OMICS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| OMNI SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| OMNINURI SYSTEMS LIMITED | Private company limited by shares | Live |
| ON-LINE SYSTEMS LIMITED | Private company limited by shares | Live |
| ONLINE ERP SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| OPCOMM SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| OSLO-LIMA SYSTEMS LIMITED | Private company limited by shares | Live |
| OVERLAY SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC RIM SYSTEMS LIMITED | Private company limited by shares | Live |
| NET - PACIFIC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CANTON PACIFIC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Pacific Mona TV Systems Limited | Private company limited by shares | Live |
| PADUS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PARA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PARKING SYSTEMS LIMITED | Private company limited by shares | Live |
| PASTEK SYSTEMS LIMITED | Private company limited by shares | Live |
| PAYD SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PEDARO SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| 5 PEOPLE SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PEOPLE'S SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PETRONEL SYSTEMS LIMITED | Private company limited by shares | Live |
| PHINARY SYSTEMS LIMITED | Private company limited by shares | Live |
| HIS PHOTONIC SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| POLRIZED SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| POLY SYSTEMS LIMITED | Private company limited by shares | Live |
| POLY-MED SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| POLYMICRO SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYTECH SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| POLYWELL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| POSITRON SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SUN POWER SYSTEMS LIMITED | Private company limited by shares | Live |
| POWER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| RPM Power Systems Limited | Private company limited by shares | Dissolved |
| DG POWER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| V&P POWER SYSTEMS LIMITED | Private company limited by shares | Live |
| UBC Power Systems Limited | Private company limited by shares | Live |
| IEM Power Systems Limited | Private company limited by shares | Live |
| NR Power Systems Limited | Private company limited by shares | Live |
| ENERGYBUS POWER SYSTEMS LIMITED | Private company limited by shares | Live Commenced dormancy on 20-Mar-2007 |
| PRESERVATION SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PRO-COM SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| PROLOG SYSTEMS LIMITED | Private company limited by shares | Live |
| PROMED SYSTEMS LIMITED | Private company limited by shares | Live |
| PROTECH SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| PRO-TECH SYSTEMS LIMITED | Private company limited by shares | Live |
| AEI PROTECT-ON SYSTEMS LIMITED | Private company limited by shares | Live |
| PURIFICATION SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| VPN IT SYSTEMS PVT. LIMITED | Private company limited by shares | Live |
| QUARTIC SYSTEMS LIMITED | Private company limited by shares | Live |
| RADEX SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| RAX-COMM SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| RAYTHEON SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| REALTIME SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| RTS Realtime Systems HK Limited | Private company limited by shares | Live |
| R.E.D. SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SYSTEMS REGISTRATIONS LIMITED | Private company limited by shares | Live |
| RE-LAX SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SYSTEMS RESOURCES LIMITED | Private company limited by shares | Dissolved |