| 541 | Reliable Air-Conditioning Service | Company Product |
| 542 | Reliable Aircon Services | Company Product |
| 543 | Reliable Packaging Supplier Singapore | Company Product |
| 544 | Reliance Repair Services | Company Product |
| 545 | Reliance Repairs | Company Product |
| 546 | Relief Valves | Company Product |
| 547 | Religious Goods | Company Product |
| 548 | Religious Organizations | Company Product |
| 549 | Religious Schools | Company Product |
| 550 | Relocatable Walls | Company Product |
| 551 | Relocation Consultants | Company Product |
| 552 | Relocation Services | Company Product |
| 553 | Remanufactured Toner Cartridges | Company Product |
| 554 | Remanufacturing | Company Product |
| 555 | Remote | Company Product |
| 556 | Remote Access | Company Product |
| 557 | Remote Control | Company Product |
| 558 | Remote Control Ceiling Fans | Company Product |
| 559 | Remote Control Mould | Company Product |
| 560 | Remote Control Panel | Company Product |
| 561 | Remote Control Relief Valves | Company Product |
| 562 | Remote Control Switches | Company Product |
| 563 | Remote Controllers | Company Product |
| 564 | Remote I | Company Product |
| 565 | Remote I/o | Company Product |
| 566 | Remote / Internal | Company Product |
| 567 | Remote Level Indication Electronic System | Company Product |
| 568 | Remote Operated Pumps | Company Product |
| 569 | Remote Reading | Company Product |
| 570 | Remote Sensor | Company Product |