| 1951 | Ocean Fisheries Pte Ltd 198701323C | 有効 |
| 1952 | Optuminsight, Inc. T11UF0020K | 有効 |
| 1953 | Overview Construction (pte) Ltd 199300978C | 有効 |
| 1954 | Orchidville Pte Ltd 199305603R | 有効 |
| 1955 | Osi Information Technology Pte Ltd 199304618G | 有効 |
| 1956 | Ornamental Mouldings Pte Ltd 199306353M | 有効 |
| 1957 | Oriensspes Inc. T11UF5045K | 有効 |
| 1958 | Oil Field Instrumentation (india) Private Limited T11UF4138D | 有効 |
| 1959 | Ocean Paradise Pte Ltd 198700398H | 有効 |
| 1960 | Object X Technologies Pte Ltd 198702614Z | 有効 |
| 1961 | Oriental Classic Pte Ltd T11UF3583L | 有効 |
| 1962 | Orissa Exim Private Limited T11UF5105C | 有効 |
| 1963 | Oiltrans Services (s) Pte Ltd 198700229R | 有効 |
| 1964 | On The Green Sports (1987) Pte Ltd 198704065Z | 有効 |
| 1965 | Omni Marketing Group,asia Pte Ltd 198700136C | 有効 |
| 1966 | Oceangrand Chartering (singapore) Pte. Ltd. 200903296H | 有効 |
| 1967 | Open D Group International Limited T11UF3585C | 有効 |
| 1968 | Openschoolbag Pte. Ltd. 201316495W | 有効 |
| 1969 | Oris Singapore Pte. Ltd. 199006219C | 有効 |
| 1970 | Oudi Box 53325388L | 有効 |
| 1971 | Ogura Construction (singapore) Pte Ltd 198701399R | 有効 |
| 1972 | Oriental Great Dragon Investment & Development Pte Ltd 199303006H | 有効 |
| 1973 | Octoshape Aps T11UF5032F | 有効 |
| 1974 | Ohm Overseas Projects Pte Ltd 198702453K | 有効 |
| 1975 | Oregan Networks Pte. Ltd. 201303857Z | 有効 |
| 1976 | Oji Interpack Singapore Pte. Ltd. 198704014E | 有効 |
| 1977 | Osl Shipping Limited T12UF0005G | 有効 |
| 1978 | One97 Communications Ltd T11UF2075H | 有効 |
| 1979 | Omya Holding Ag T11UF4844F | 有効 |
| 1980 | Oil Marketing & Trading International T11UF3991K | 有効 |