| Ai Round Trade Limited | Private company limited by shares | Live |
| ROUND TREES LIMITED | Private company limited by shares | Live |
| VAST ROUND LIMITED | Private company limited by shares | Dissolved |
| ROUND VIEW LIMITED | Private company limited by shares | Live |
| WONDER ROUND COMPANY LIMITED | Private company limited by shares | Dissolved |
| Roundabout Limited | Private company limited by shares | Live |
| ROCKERS & ROUNDABOUTS LIMITED | Private company limited by shares | Dissolved |
| ROUNDALIGN LIMITED | | Live |
| ROUNDAROUND LIMITED | Private company limited by shares | Live |
| Roundasia Company Limited | Private company limited by shares | Live |
| ROUND-ASIA RESOURCES LIMITED | Private company limited by shares | Dissolved |
| ROUNDAY LIMITED | Private company limited by shares | Dissolved |
| Roundbox Limited | Private company limited by shares | Live |
| ROUNDCARE DIAGNOSTIC LIMITED | | Live |
| ROUNDCOACH INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Roundcom Int Limited | Private company limited by shares | Live |
| Roundcube Limited | Private company limited by shares | Live |
| ROUNDDALE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROUNDEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Roundency Communication Limited | Private company limited by shares | Live |
| REACHTOP ROUNDER BUSINESS CONSULTING LIMITED | Private company limited by shares | Live |
| ROUNDER INVESTMENTS LIMITED | Private company limited by shares | Live |
| Rounder Asset Management Co., Limited | Private company limited by shares | Live |
| ALL ROUNDER PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| 4ll Rounder Studio Limited | Private company limited by shares | Live |
| ROUNDEX INT'L LIMITED | Private company limited by shares | Live |
| ROUNDEX PRO INT'L LIMITED | | Live |
| ROUNDEYE LIMITED | Private company limited by shares | Dissolved |
| ROUNDFACE COMPANY LIMITED | Private company limited by shares | Live |
| ROUNDFINITY LIMITED | Private company limited by shares | Live |
| ROUNDFLOW COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROUNDHAM COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK Roundhead Company Limited | Private company limited by shares | Live |
| ROUNDHOUSE LIMITED | Private company limited by shares | Live |
| 3D Roundhouse Limited | Private company limited by shares | Live |
| Roundhurst HK Limited | | Live |
| 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 |
| ROUPAI (CHINA) LIMITED | Private company limited by shares | Live |
| ROURE LIMITED | Private company limited by shares | Dissolved |
| Germany Rourolin Technology Co., Limited | | Live |
| ROUSAY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MW Rouse & Company Limited | Private company limited by shares | Live |
| ROUSE TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROUSE YEAR LIMITED | Private company limited by shares | Dissolved |
| Rousemobi Limited | Private company limited by shares | Live |
| ROUSEWING LIMITED | Private company limited by shares | Dissolved |
| ROUSHAN IMPEX LIMITED | Private company limited by shares | Dissolved |
| HONGKONG ROUSING CO., LIMITED | Private company limited by shares | Live |
| HK ROUSING INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| ROUSING RISING & RELAXING LIMITED | Private company limited by shares | Dissolved |