| OLAN LIMITED | Private company limited by shares | Dissolved |
| OLAN OPTRONICS LIMITED | | Live |
| O-LAND LIMITED | Private company limited by shares | Live |
| OLAND (H K) COMPANY LIMITED | Private company limited by shares | Live |
| OLAND ELECTRONICS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OLAND GLOBAL LIMITED | Private company limited by shares | Live |
| OLAND GROUP LIMITED | Private company limited by shares | Live |
| OLAND INTERNATIONAL GROUP (HK) LIMITED | Private company limited by shares | Live |
| OLAND GROUP INTERNATIONAL LIMITED | Private company limited by shares | Live |
| OLAND INVESTMENTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| GERMANY OLAND INTERNATIONAL LIGHTING CO., LIMITED | Private company limited by shares | Dissolved |
| O'LAND Logistic Limited | Private company limited by shares | Live |
| HK OLAND PHOTOELECTRIC TECHNOLOGY LIMITED | Private company limited by shares | Live |
| OLAND PHOTOELECTRIC TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OLANDS ENTERPRISE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG O'LANDSEA INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| Olane Group (HK) Limited | Private company limited by shares | Live |
| HONG KONG OLANGSHENG TRADING CO., LIMITED | Private company limited by shares | Live |
| Olanstar Technology Co., Limited | Private company limited by shares | Live |
| OLANTIC LIMITED | Private company limited by shares | Dissolved |
| OLANTO COMPANY LIMITED | Private company limited by shares | Dissolved |
| OLANTRADE LIMITED | Private company limited by shares | Live |