| FREQUENCY COMPANY LIMITED | Private company limited by shares | Live |
| FREQUENCY 3G LIMITED | Private company limited by shares | Dissolved |
| Pet Frequency Limited | Private company limited by shares | Live |
| FREQUENCY (ASIA) PTE LIMITED | Private company limited by shares | Live |
| Healing Frequency Limited | Private company limited by shares | Live |
| IQD Frequency Products (Asia) Limited | Private company limited by shares | Live Commenced dormancy on 04-Oct-2011 |
| IQD Frequency Products (Shenzhen) Limited | Private company limited by shares | Dissolved |
| RADIO FREQUENCY SOLUTION LIMITED | Private company limited by shares | Dissolved |
| RADIO FREQUENCY SOLUTIONS LIMITED | Private company limited by shares | Live |
| HK RADIO FREQUENCY READER SYSTEMS LIMITED | Private company limited by shares | Live |
| Frequencytime Limited | Private company limited by shares | Dissolved |