| MARS ROCK POWER LIMITED | Private company limited by shares | Live |
| SHUI ON ROCK PRODUCTS LIMITED | Private company limited by shares | Live |
| Rhino Rock Limited | Private company limited by shares | Live |
| Ocean Rock Shipping Limited | Private company limited by shares | Live |
| GRAND ROCK TRADING LIMITED | Private company limited by shares | Dissolved |
| Vanadium Rock Limited | Private company limited by shares | Live |
| ROCKA LIMITED | Private company limited by shares | Dissolved |
| ROCKA INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROCKALINE LIMITED | | Live |
| ROCK-ANCHOR ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ROCKAPETTA LIMITED | Private company limited by shares | Live |
| ROCKAPETTA TOYS LIMITED | Private company limited by shares | Dissolved |
| ROCKAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROCKAR INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ROCKAR PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| ROCKARMOR PTY LIMITED | Private company limited by shares | Live |
| ROCKARYON INVESTMENT AND TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| ROCKASIA LIMITED | Private company limited by shares | Dissolved |
| ROCKAUTOPARTS LIMITED | Private company limited by shares | Dissolved |
| ROCKAWAY COMPANY, LIMITED | Private company limited by shares | Dissolved |
| ROCKAWAY LIMITED | Private company limited by shares | Dissolved |
| ROCKAWAY LIMITED | Private company limited by shares | Live |
| ROCKAWAY ENTERPRISES LIMITED | Private company limited by shares | Live |
| ROCKBASE ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| ROCKBELL COMPANY LIMITED | Private company limited by shares | Live |
| ROCKBEST MACHINERY CO., LIMITED | Private company limited by shares | Live |
| HK ROCKBOND ADHESIVE LIMITED | Private company limited by shares | Dissolved |
| CHAP YIK ROCKBREAKING (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROCKBRIGHT (INTERNATIONAL) CO., LIMITED | Private company limited by shares | Live |
| RockBros Sports Limited | Private company limited by shares | Live |
| Rockbrother (Hongkong) Limited | Private company limited by shares | Live |
| ROCKBULL LIMITED | Private company limited by shares | Live |
| ROCKBURY LIMITED | Private company limited by shares | Dissolved |
| RockByte Technology Limited | | Live |
| ROCKCASTLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| 4X4 ROCKCATS LIMITED | | Live |
| Rockcheck Resources (Hong Kong) Limited | | Live |
| ROCKCHECK SHIPPING LIMITED | Private company limited by shares | Live |
| RockCheck Steel Group Holdings Limited | Private company limited by shares | Live |
| RockCheck Trading Limited | Private company limited by shares | Live |
| ZHENGZHOU ROCKCHEM INDUSTRY LIMITED | Private company limited by shares | Live |
| Rockchip Electronics (HK) Company Limited | Private company limited by shares | Live |
| ROCK-CHIP INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROCKCHIP TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| ROCKCLIFFE LIMITED | Private company limited by shares | Live |
| ROCKCLIFFE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ROCKCODE DIAMOND PRODUCTS LIMITED | Private company limited by shares | Live |
| ROCKCONE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ROCKCREST COMPANY LIMITED | Private company limited by shares | Dissolved |
| Rockcy (Hong Kong) Limited | Private company limited by shares | Dissolved |
| ROCKDAL INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| ROCKDALE LIMITED | Private company limited by shares | Dissolved |
| ROCKDEN CO LIMITED | Private company limited by shares | Live |
| ROCKDISCO LIMITED | Private company limited by shares | Live |
| MAXA RockDrills Limited | Private company limited by shares | Live |
| ROCKDYN GROUP LIMITED | Private company limited by shares | Live |
| ROCKE TRADE CO., LIMITED | Private company limited by shares | Live |
| ROCKE ELECTRONICS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| Rocke Global Trading Limited | Private company limited by shares | Live |
| ROCKE ZEN INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ROCKEAST DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| ROCKED LIMITED | | Live |
| ROCKEDGE STUDIOS LIMITED | Private company limited by shares | Live |
| ROCKEE LIMITED | Private company limited by shares | Dissolved |
| ROCKEE LIMITED | Private company limited by shares | Dissolved |
| ROCKEFELLER ASIA INVESTMENTS LIMITED | Private company limited by shares | Live |
| Rockefeller Pacific Limited | Private company limited by shares | Live |
| ROCKEN LIMITED | Private company limited by shares | Dissolved |
| ROCKEN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ROCKENT LIMITED | Private company limited by shares | Dissolved |
| ROCKENT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ROCKENT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ROCKER LIMITED | Private company limited by shares | Dissolved |
| ROCKER LIMITED | Private company limited by shares | Live |
| HK ROCKER ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| ROCKER CORPORATION LIMITED | Private company limited by shares | Live |
| Boat Rocker Rights (HK) Limited | Private company limited by shares | Live |
| NEW OXFORD SPINNING MACHINE AIR SAC ROCKER FRAME INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| ROCKER MUSIC LIMITED | Private company limited by shares | Live |
| Star Rocker Showbiz Limited | Private company limited by shares | Live |
| ROCKER TRADING COMPANY LIMITED | Private company limited by shares | Live |
| ROCKER-LANGE ARCHITECTS LIMITED | Private company limited by shares | Live |
| ROCKERS LIMITED | Private company limited by shares | Dissolved |
| ROCKERSON TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WIN ROCKET LIMITED | Private company limited by shares | Dissolved |
| ROCKET LIMITED | Private company limited by shares | Live |
| SKY ROCKET LIMITED | Private company limited by shares | Dissolved |
| SKY ROCKET LIMITED | Private company limited by shares | Live |
| RED ROCKET 321 LIMITED | Private company limited by shares | Live |
| ROCKET JOY LIMITED | Private company limited by shares | Live |
| Rocket BC Limited | Private company limited by shares | Live |
| Red Rocket Limited | Private company limited by shares | Live |
| Rocket Digital Limited | Private company limited by shares | Live |
| ROCKET ENTERPRISES LIMITED | | Live |
| Rocket Entertainment Company Limited | | Live |
| RICH ROCKET LIMITED | Private company limited by shares | Dissolved |
| Rocket Trade Limited | Private company limited by shares | Live |
| YELLOW ROCKET COMPANY LIMITED | Private company limited by shares | Live |
| Rocketar Group Limited | | Live |
| ROCKETAR INTERNATIONAL LIMITED | Private company limited by shares | Live |