| PROLONG LIMITED | Private company limited by shares | Dissolved |
| PRO-LONG LIMITED | Private company limited by shares | Live |
| PROLONG INC LIMITED | | Live |
| PRO-LONG (ASIA) LIMITED | Private company limited by shares | Dissolved |
| PRO-LONG BENEFIT LIMITED | Private company limited by shares | Live |
| PROLONG BUILDER COMPANY LIMITED | Private company limited by shares | Live |
| PROLONG CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| PROLONG FORTUNE CORPORATION LIMITED | Private company limited by shares | Live |
| Prolong Design & Build Company Limited | Private company limited by shares | Live |
| PROLONG TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| PROLONG DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| PROLONG EARN LIMITED | Private company limited by shares | Dissolved |
| PROLONG EARN INVESTMENTS LIMITED | Private company limited by shares | Live |
| PROLONG ELECTRONICS LIMITED | Private company limited by shares | Live |
| PROLONG ELITE LIMITED | Private company limited by shares | Live |
| PROLONG FOODS LIMITED | Private company limited by shares | Live |
| PROLONG FORTUNE LIMITED | Private company limited by shares | Dissolved |
| PROLONG FORTUNE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| PROLONG ASIA GROUP LIMITED | Private company limited by shares | Live |
| PROLONG HARVEST INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| PRO-LONG HOLDINGS LIMITED | Private company limited by shares | Live |
| PROLONG INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| PROLONG INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Prolong International Co., Limited | Private company limited by shares | Live |
| PROLONG INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| EVER PROLONG INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| PROLONG FORTUNE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Prolong International Industry Limited | Private company limited by shares | Dissolved |
| PROLONG INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| PROLONG INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| PROLONG INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| PROLONG KING LIMITED | Private company limited by shares | Live |
| PROLONG LIVING ORGANISM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| PROLONG MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| PROLONG PRESS LIMITED | Private company limited by shares | Live |
| PROLONG PROFIT LIMITED | Private company limited by shares | Live |
| PROLONG PROFIT INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| PROLONG PROFIT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| PROLONG PROPERTIES LIMITED | Private company limited by shares | Live Commenced dormancy on 18-Oct-2013 |
| PROLONG PROSPECT HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| PROLONG PROSPECT INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| PROLONG RICH LIMITED | Private company limited by shares | Dissolved |
| PROLONG RICH LIMITED | Private company limited by shares | Live |
| PROLONG TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| CHINA LIFE PROLONG TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| PROLONG TRADE LIMITED | Private company limited by shares | Live |
| PROLONG TRADING LIMITED | Private company limited by shares | Dissolved |
| PROLONG TRADING LIMITED | Private company limited by shares | Dissolved |
| PROLONG TREASURE LIMITED | Private company limited by shares | Live |
| WEALTH PROLONG LIMITED | | Live |
| SANJIAO ELECTRIC ZHANJIANG PROLONGATION LIMITED | Private company limited by shares | Live |
| PROLONGWIN INDUSTRY CO., LIMITED | Private company limited by shares | Live |