| Roundie Round Round Limited | | Live |
| ROUNDING COMPANY LIMITED | Private company limited by shares | Live |
| ROUNDING SUN LIMITED | Private company limited by shares | Live |
| HONG KONG ROUNDING INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| Rounding Investment Limited | | Live |
| ROUNDING THIRD LIMITED | Private company limited by shares | Live |
| ROUNDION ASIA LIMITED | Private company limited by shares | Dissolved |
| ROUNDLY INVESTMENTS LIMITED | Private company limited by shares | Live |
| ROUNDNATIONAL LIMITED | | Live |
| Hong Kong Roundnet Association Limited | Private company limited by shares | Live |
| ROUNDNET HONG KONG LIMITED | Private company limited by shares | Live |
| ROUNDO CRAFT LIMITED | Private company limited by shares | Live |
| roundPegz Limited | Private company limited by shares | Live |
| ROUNDPOINT ESTATES LIMITED | Private company limited by shares | Dissolved |
| ROUNDPOLL LIMITED | Private company limited by shares | Dissolved |
| ROUNDRAIL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Roundred Limited | Private company limited by shares | Live |
| RoundRock Management Limited | Private company limited by shares | Dissolved |
| ROUNDS & ROUNDS INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROUNDSKY LIMITED | Private company limited by shares | Dissolved |
| ROUNDSTAR LIMITED | Private company limited by shares | Dissolved |
| ROUNDSTAR INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ROUNDSTONE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Roundstone Consultancy Limited | Private company limited by shares | Live |
| Roundstone Shipping Limited | | Live |
| ROUND.T LIMITED | Private company limited by shares | Dissolved |
| Roundtable 7 Limited | Company limited by guarantee | Live |
| ESG Roundtable Limited | 擔保有限公司 | Live |
| ROUNDTABLE CAPITAL LIMITED | Private company limited by shares | Live |
| ROUNDTABLE CATERING LIMITED | Private company limited by shares | Dissolved |
| ROUNDTABLE ENTERPRISE LIMITED | Private company limited by shares | Live |
| Asia Investors Roundtable Limited | Private company limited by shares | Live |
| Roundten Limited | Private company limited by shares | Live |
| ROUND-THE UNIVERSAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| ROUND-THE-OCEAN INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| Roundtrade Investment & Development Corporation Limited | Private company limited by shares | Live |
| ROUNDTREE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROUNDTREE PROPERTY COMPANY LIMITED | Private company limited by shares | Live |
| roundup electronics Limited | Private company limited by shares | Live |
| Hongkong Sen Roundup Trading Co., Limited | Private company limited by shares | Live |
| ROUNDUP INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINCERE ROUNDUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROUNDWAY COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROUNDWAY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ROUNDWAY ENTERPRISES LIMITED | Private company limited by shares | Live |
| ROUNDWAY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ROUNDWELL LIMITED | Private company limited by shares | Dissolved |
| ROUNDWISH LIMITED | Private company limited by shares | Live |
| ROUNDWO LIMITED | Private company limited by shares | Live |
| Roundzoom Technology Co., Limited | Private company limited by shares | Live |
| ROUNYA INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |