| AMPS AND COMPANY, LIMITED | Private company limited by shares | Dissolved |
| AMPS LIMITED | Company limited by guarantee | Live |
| A.M.P.S. INTERNATIONAL LIMITED | Private company limited by shares | Live Commenced dormancy on 22-Jul-2015 |
| AMPS CONNECTIVITY TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| AMPS TRADING LIMITED | Private company limited by shares | Live |
| AMPSLEY COMPANY LIMITED | Private company limited by shares | Live |
| AMPSON TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| AMPSON HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Ampstek IT Services Limited | | Live |