| 451 | Oriental Sheet Piling Pte. Ltd.
200302665Z | 启用 |
| 452 | Ordnance Development & Engineering Company Of S'pore (1996) Pte Ltd
| 启用 |
| 453 | Outback Steakhouse
| 启用 |
| 454 | Otra Pulp & Paper Pte Ltd
| 启用 |
| 455 | Out Of The Pan
| 启用 |
| 456 | Outdoor Consultants Pte Ltd
199206719C | 启用 |
| 457 | Otra Packaging Pte Ltd
| 启用 |
| 458 | Outsource Centre Pte Ltd
198201584Z | 启用 |
| 459 | Oticon S'pore Pte Ltd
| 启用 |
| 460 | Oriental Service Centre
52922277M | 启用 |
| 461 | Orthodontic & Dental Supplies Pte Ltd
198301334K | 启用 |
| 462 | Oriental Television & Radio Service
| 启用 |
| 463 | Ortec Digital Pte Ltd
200103752W | 启用 |
| 464 | Orthopaedic Sports Medicine Pte Ltd
200001012H | 启用 |
| 465 | Omni Industries Holdings Pte. Ltd.
199504780K | 启用 |
| 466 | Olivine Electronics Pte Ltd
198601622K | 启用 |
| 467 | Olive Tree Rstnt & Cafe
| 启用 |
| 468 | Ocean Marketing Agency Pte Ltd
198202249R | 启用 |
| 469 | Oliver Co
| 启用 |
| 470 | Ocbc Property Services Pte Ltd
| 启用 |
| 471 | Olk Industrial Mktg Pte Ltd
| 启用 |
| 472 | Offshore Industries Pte. Ltd.
200406769G | 启用 |
| 473 | One Stop Global Pte. Ltd.
200800376E | 启用 |
| 474 | Ovivo S'pore Pte Ltd
| 启用 |
| 475 | Onda Offshore Technologies Pte. Ltd.
200408376C | 启用 |
| 476 | Overseas Technology Center Pte. Ltd.
198105302H | 启用 |
| 477 | Orangetee & Tie Pte. Ltd.
199206764K | 启用 |
| 478 | Opm Int'l Pte Ltd
| 启用 |
| 479 | Oasis Lim Engineering & Trading Services Pte Ltd
| 启用 |
| 480 | Oriental Family Clinic
| 启用 |