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| 542 | Rdc Architects Pte Ltd 199106389H | Active |
| 543 | Real Estate Academy Pte. Ltd. 200514572D | Active |
| 544 | Reed Elsevier (S) Pte Ltd
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| 545 | Real Estate Developer' Association Of S'pore
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| 546 | Red Apple Interior Fruniture Co Pte Ltd
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| 547 | Rank Books 08773000J | Active |
| 548 | Redina Trading Pte Ltd 198500662C | Active |
| 549 | Reallyworks (pte.) Ltd. 200803647K | Active |
| 550 | Readyspace (sg) Pte. Ltd. 200813524R | Active |
| 551 | Red Army Watches Pte. Ltd. 200411739E | Active |
| 552 | Ready Cars Asia Pacific (Pte) Ltd
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| 553 | Realcool Air Conditioning Services & Trading Pte. Ltd. 200205674G | Active |
| 554 | Ready Software Pte Ltd 199306556N | Active |
| 555 | Reed Hycalog S'pore
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| 556 | Raffles Healthscreeners
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| 557 | Rapiscan Systems Pte. Ltd. 199800739K | Active |
| 558 | Raffles Hotel (1886) Ltd
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| 559 | Ras Corporate Secretarial Services Pte Ltd 198702082Z | Active |
| 560 | Rast Holding Pte. Ltd. 200611471M | Active |
| 561 | Rf360 Singapore Pte. Ltd. 199700383G | Active |
| 562 | Rumah Bebe Pte. Ltd. 200404663N | Active |
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| 564 | Ricoh (S'pore) Pte Ltd
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| 567 | Rohan . Mah Management Consultants Pte Ltd 199306446G | Active |
| 568 | Roundo Far East Pte Ltd 197802930D | Active |
| 569 | Rockette Communications Pte Ltd 199304535E | Active |
| 570 | Rang Mahal Pte Ltd 199906955D | Active |