| 5131 | Octant Consulting (s) Pte. Ltd. 200810667E | Active |
| 5132 | Oceanicstar Line (singapore) Pte. Ltd. 200807530M | Active |
| 5133 | Oceanic Contract Services Private Limited 201404263C | Active |
| 5134 | Ocean Front Hardware Pte. Ltd. 200807254W | Active |
| 5135 | Odyssey Capital Pte. Ltd. 200801768H | Active |
| 5136 | Oxley Projects Pte. Ltd. 200721651W | Active |
| 5137 | Ofisgate (s) Pte. Ltd. 200817134R | Active |
| 5138 | O1o Pte. Ltd. 200807226C | Active |
| 5139 | O Plus Entertainment Pte. Ltd. 200804210N | Active |
| 5140 | Optima Investment & Development Pte. Ltd. 201104813N | Active |
| 5141 | Opening Space Private Limited 200901122H | Active |
| 5142 | Oilfield Equipment & Structure Pte. Ltd. 200801456K | Active |
| 5143 | Only Three Pte. Ltd. 201226406H | Active |
| 5144 | Ops Design Pte. Ltd. 200805689R | Active |
| 5145 | Octoneon Pte. Ltd. 200807213R | Active |
| 5146 | Ocean Diving Works Pte. Ltd. 200808418R | Active |
| 5147 | Oceandeep Singapore Pte. Ltd. 200804062K | Active |
| 5148 | Okamotto Pte. Ltd. 201404243R | Active |
| 5149 | Okeat Pte. Ltd. 200806897M | Active |
| 5150 | Orchard Global Capital Group (s) Pte. Ltd. 200813565W | Active |
| 5151 | Oceansky Marine Shipping Pte. Ltd. 200804982G | Active |
| 5152 | Ooredoo Asian Investments Pte. Ltd. 200802977R | Active |
| 5153 | Openware Pte. Ltd. 201026659G | Active |
| 5154 | Orchard Global Asset Management (s) Pte. Ltd. 200814003D | Active |
| 5155 | Oem Hub Pte. Ltd. 200800807Z | Active |
| 5156 | Only Medical Group Pte. Ltd. 201508787M | Active |
| 5157 | Oliver James Associates Limited T13UF4404K | Active |
| 5158 | One Galleria Pte. Ltd. 201230242G | Active |
| 5159 | Oanus Pte. Ltd. 200800848C | Active |
| 5160 | Opal Star Pte. Ltd. 200805270G | Active |