| 991 | Outlook Furnishing 52873365J | Active |
| 992 | On Pedder 52835852M | Active |
| 993 | Odia Society Of Singapore T12SS0035E | Active |
| 994 | Onez Beauty Salon 52893560K | Active |
| 995 | Ogano Essentials 53021758M | Active |
| 996 | Opvs Investment Holdings Ltd T07UF2169E | Active |
| 997 | Orchid B.c International Pte. Ltd. 201001971K | Active |
| 998 | Orchard Cuscaden Road Learning Centre 53321613C | Active |
| 999 | Opportunities Publications 50164700K | Active |
| 1000 | Os Halal Food 52819785A | Active |
| 1001 | Okira Pte. Ltd. 201542671N | Active |
| 1002 | Os And H Services 52815492C | Active |
| 1003 | Okios Trust T06UF3194D | Active |
| 1004 | Oscar's Cafe & Terrace 52819961K | Active |
| 1005 | Ong Wee Chorng Vegetable 52834892B | Active |
| 1006 | Oks Launch Service 52823982A | Active |
| 1007 | Ob Limousine 53322688X | Active |
| 1008 | Osm Technology 52826639W | Active |
| 1009 | Opera Cafe 46820300A | Active |
| 1010 | Obesity And Metabolic Surgery Society Of Singapore T11SS0035L | Active |
| 1011 | Ow Chong Beng Vegetable Supplier 45775300E | Active |
| 1012 | Orimex Services 46138600C | Active |
| 1013 | Om Tech Resources 53040040E | Active |
| 1014 | Omi Renovation Contractor 47279200L | Active |
| 1015 | Open Text (asia) Pte. Ltd. 199706812W | Active |
| 1016 | Ong Soon Tat Trading 46996500B | Active |
| 1017 | Ong Hoe Lim Engineering Services 46425000E | Active |
| 1018 | Oleander Insurance Agency 46496000B | Active |
| 1019 | Ow Laundromat Bukit Merah Pte. Ltd. 201507859N | Active |
| 1020 | Orchidspura Cookies & Food Industries 46616400M | Active |