| Sentr Limited | | Live |
| SENTRA LIMITED | Private company limited by shares | Dissolved |
| Sentra Group Limited | Private company limited by shares | Dissolved |
| SENTRA PRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| SENTRADE LIMITED | Private company limited by shares | Dissolved |
| Sentrade Limited | Private company limited by shares | Live |
| SENTRAL LIMITED | Private company limited by shares | Dissolved |
| SENTREX LIMITED | Private company limited by shares | Dissolved |
| SENTRION LIMITED | Private company limited by shares | Live |
| SENTRIUM LIMITED | Private company limited by shares | Live |
| SENTRIX LIMITED | Private company limited by shares | Dissolved |
| SENTRIX LIMITED | Private company limited by shares | Live |
| SENTRIX CORPORATION LIMITED | Private company limited by shares | Live |
| SENTRIX INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SENTRIX INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SENTRIX INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SENTRIX INVESTMENTS LIMITED | Private company limited by shares | Live |
| SENTRIX MANAGEMENT LIMITED | Private company limited by shares | Live |
| SENTRIX PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SENTRIX TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SENTROL LIFESAFETY CHINA LIMITED | Private company limited by shares | Dissolved |
| SENTRON LIMITED | Private company limited by shares | Live |
| SENTRON COMPUTER LIMITED | Private company limited by shares | Dissolved |
| SENTRON DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SENTRON ELECTRONICS CO., LIMITED | | Live |
| SENTRON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SENTRON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SENTRON INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| SENTRON INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| SENTRON INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SENTRON INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| SENTRON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SENTRON PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SENTRON RESOURCES LIMITED | Private company limited by shares | Dissolved |
| SENTRON TRADING LIMITED | Private company limited by shares | Dissolved |
| SENTRONIC COMPANY LIMITED | Private company limited by shares | Live |
| SENTRY LIMITED | Private company limited by shares | Dissolved |
| Sentry 2011 Limited | Private company limited by shares | Live |
| SENTRY (ASIA) LIMITED | Private company limited by shares | Dissolved |
| SENTRY BIOTECHNIK LIMITED | Private company limited by shares | Dissolved |
| SENTRY CAPITAL LIMITED | Private company limited by shares | Dissolved |
| SENTRY DOOR SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| GLORY SENTRY LIMITED | Private company limited by shares | Live |
| SENTRY GROUP LIMITED | Private company limited by shares | Live |
| ASIA SENTRY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SHEEN SENTRY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOUTH SENTRY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SENTRY PARKING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SENTRY TRADING LIMITED | Private company limited by shares | Dissolved |
| SENTRYi H.K. Limited | Private company limited by shares | Dissolved |
| Sentrylabs Limited | | Live |
| SENTRY-TECH LIMITED | Private company limited by shares | Dissolved |