| 1231 | Ong Hock Hin 09572400A | 启用 |
| 1232 | Ong Chin Chun Sub Contractor 29728500M | 启用 |
| 1233 | Ourea Trading Singapore Pte. Ltd. 201532059K | 启用 |
| 1234 | Opulus Technology Llp T16LL0148H | 启用 |
| 1235 | Onecare Clinic Tampines Pte. Ltd. 201603565W | 启用 |
| 1236 | Ocean Grace Co. Pte Ltd 199200477N | 启用 |
| 1237 | Oceania Trading Company 08167900M | 启用 |
| 1238 | Ong Sam Bee Company 07597000K | 启用 |
| 1239 | Onn Fat Hong 20483000A | 启用 |
| 1240 | Omorfia Marval Pte. Ltd. 201607873W | 启用 |
| 1241 | Optimised Digital Pte. Ltd. 201609282E | 启用 |
| 1242 | Ong Kam Chwee Chinese Medical Hall 27114500E | 启用 |
| 1243 | O Chiang Electrical & Plumbing Contractor 29696900A | 启用 |
| 1244 | Outram Park Fried Kway Teow 26316700C | 启用 |
| 1245 | Orientals Cleaning Services 28634800D | 启用 |
| 1246 | Oak & Barrel Pte. Ltd. 201529454K | 启用 |
| 1247 | Oversea Driving Service 27899500D | 启用 |
| 1248 | Oilquip Supplies Company 25699400E | 启用 |
| 1249 | Odette Global Pte. Ltd. 201529653H | 启用 |
| 1250 | Olevelenglish.com 53293148C | 启用 |
| 1251 | Ong Kim Hin Vegetable Supplier 26787100K | 启用 |
| 1252 | Osaka Gas Engineering Co., Ltd. (singapore Branch) T15FC0058K | 启用 |
| 1253 | Origins Of Art Pte. Ltd. 201525036D | 启用 |
| 1254 | Ong Tian Sang (sembawang) Motor Repair 31853600E | 启用 |
| 1255 | Orchid Textiles 25758700D | 启用 |
| 1256 | Orchard Way Beauty Shop 26095100E | 启用 |
| 1257 | Oh Choo Sea School Bus Service 31471900L | 启用 |
| 1258 | Organic Werkz 53313796M | 启用 |
| 1259 | Ong Kim Sun 07653000X | 启用 |
| 1260 | Optics Balzers Singapore Pte. Ltd. 201601908Z | 启用 |