| 4501 | Osg Asia Pte Ltd 199305487M | Active |
| 4502 | On Command Corporation T08UF7688L | Active |
| 4503 | Orthosports@novena 53226158E | Active |
| 4504 | Octagon Csi International Holdings Sa T06UF0507D | Active |
| 4505 | Onn Electrical And Plumbing Services 53222569D | Active |
| 4506 | Over & Over Ltd S80UF0325H | Active |
| 4507 | Odyssey Nails & Reflexology Court 53222876J | Active |
| 4508 | Oncosolutions Cancer Center 53250000L | Active |
| 4509 | Old Kampong Convenience Shop 53223875C | Active |
| 4510 | Orthotics Lab Singapore 53290489C | Active |
| 4511 | Oprisk Advisory Llc T05UF2193A | Active |
| 4512 | One Trustee Pte. Ltd. 200715913Z | Active |
| 4513 | Orkla Asia Holding As T06UF1829C | Active |
| 4514 | Okawa Limited S80UF0309D | Active |
| 4515 | O3 Solutions 53265887J | Active |
| 4516 | Ocular Components 53248864D | Active |
| 4517 | Oasis Marine Services 53222982K | Active |
| 4518 | Omocha House 53229105X | Active |
| 4519 | Oil's Well Enterprise 53228329E | Active |
| 4520 | Office Devi,inc T03UF0493D | Active |
| 4521 | Omni Business Asia 53258443X | Active |
| 4522 | Ootique International 53224817A | Active |
| 4523 | Oversea Chinesebanking Corporation Limited, Shanghai Branch T06UF2435G | Active |
| 4524 | Oil Bunkers Pte. Ltd. 200914198K | Active |
| 4525 | Ope Enterprise 53224523K | Active |
| 4526 | One Fix Hub 53222318K | Active |
| 4527 | Ossia Music School Pte. Ltd. 200615001K | Active |
| 4528 | Ong Peng Siang 53222857W | Active |
| 4529 | Omono Pte. Ltd. 201416283W | Active |
| 4530 | Olivant Limited T06UF3053H | Active |