| OCUM 2155536 · TMA1187882 | N.B. Automation inc. | 42 Science | Registered | 2023 |
| OCIM 2140005 · TMA1268287 | an individual | 14 Jewellery35 Advertising36 Finance+1 | Registered | 2024 |
| OCIM 2101496 · TMA1180474 | an individual | 36 Finance | Registered | 2023 |
| OSIM 1473813 · TMA857720 · design | OSIM International Pte. Ltd. | 9 Electronics10 Medical20 Furniture+2 | Registered | 2013 |
| OSIM 1288777 · TMA689628 | OSIM International Pte. Ltd. | 10 Medical27 Carpets28 Toys | Registered | 2007 |
| OSIM 1171466 · TMA662796 | OSIM International Pte. Ltd. | 7 Machines9 Electronics10 Medical+5 | Registered | 2006 |
| OSIM 1082473 · TMA578799 · design | OSIM International Pte. Ltd. | 9 Electronics10 Medical11 Lighting+5 | Registered | 2003 |
| OSIM 2143708 | OSIM International Pte. Ltd. | 10 Medical20 Furniture | Pending | 2021 |
| OSSUM 2061702 · design | Vini Cosmetics Pvt. Ltd. | 3 Cosmetics | Pending | 2020 |
| OAKUM 2047435 | Oakum Cannabis Corp. | 1 Chemicals5 Pharmaceuticals29 Meat+5 | Pending | 2020 |
| OSNO 2265566 · TMA1284961 | 3097-1238 Quebec Inc. | 25 Clothing35 Advertising | Registered | 2025 |
| OSHIN 2256373 · TMA1283028 | Suzhou rizi office & stationery co.ltd | 16 Paper | Registered | 2025 |
| OZANI 2249197 · TMA1267376 | an individual | 14 Jewellery35 Advertising | Registered | 2024 |
| Oxumii 2245480 · TMA1264436 | Guangzhou Xumiao Electronic Commerce Co. Ltd. | 9 Electronics | Registered | 2024 |
| Océane 2208012 · TMA1248183 | MX PRODUCTS INC | 7 Machines11 Lighting | Registered | 2024 |
| OASMU 2206570 · TMA1241415 | SHENZHEN FENJUN INFORMATION TECHNOLOGY CO.LTD | 20 Furniture | Registered | 2024 |
| OZMO 2183638 · TMA1284455 | Owner not shown | 30 Coffee | Registered | 2025 |
| OKAN 2171628 · TMA1169173 | SAULE LLC | 9 Electronics | Registered | 2023 |
| OGIMA 2166433 · TMA1246331 | Shenzhen Taomatou E-Commerce Co., Ltd. | 3 Cosmetics21 Housewares | Registered | 2024 |
| OSHEN 2165995 · TMA1212472 | OSHEN Housewares Corp. | 18 Leather21 Housewares | Registered | 2023 |
| OSSION 2161435 · TMA1211173 | Owner not shown | 3 Cosmetics5 Pharmaceuticals | Registered | 2023 |
| OCEANO 2159991 · TMA1285122 · design | Owner not shown | 16 Paper18 Leather21 Housewares+5 | Registered | 2025 |
| OKAWANY 2149007 · TMA1203133 · design | an individual | 18 Leather | Registered | 2023 |
| OGIN 2147775 · TMA1187788 | an individual | 25 Clothing | Registered | 2023 |
| Ougenni 2146890 · TMA1204092 | Owner not shown | 9 Electronics | Registered | 2023 |