| Company Name | Type | Status |
|---|---|---|
| TYCOM HK LIMITED | Private company limited by shares | Live |
| TYCOM (ASIA) LIMITED | Private company limited by shares | Dissolved |
| KYOCERA TYCOM (H.K.) LIMITED | Private company limited by shares | Dissolved |
| TYCOM TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| TYCOMA LIMITED | Private company limited by shares | Live |
| HK TYCOMED BIO-MEDICAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |