| 1891 | Old Man And Fox Academy
53318547E | Active |
| 1892 | Onp Global Pte. Ltd.
201530365K | Active |
| 1893 | Osa Holdings (s) Pte Ltd
199407156R | Active |
| 1894 | Orwin Development Limited
199407593M | Active |
| 1895 | Oriental Garden Restaurant & Catering
52557000D | Active |
| 1896 | Omp Holdings Pte Ltd
199606694H | Active |
| 1897 | Oriimec Corporation Of Singapore Pte Ltd
199401431C | Active |
| 1898 | Overseas Chartering Pte Ltd
199900855K | Active |
| 1899 | Oid Pte. Ltd.
199301567R | Active |
| 1900 | Obs Financial Solutions Pte. Ltd.
199304758M | Active |
| 1901 | Old & Young Salon
53284039M | Active |
| 1902 | Ong Av Specialists Pte Ltd
199301969R | Active |
| 1903 | Ohb Real Estate Consultants & Services Pte Ltd
199305430M | Active |
| 1904 | Oceandale Investment Pte Ltd
199307064H | Active |
| 1905 | Oakshill Investments (s) Pte Ltd
199302530W | Active |
| 1906 | Ong Asia Limited
199301724C | Active |
| 1907 | O & Y Builders Pte Ltd
199300468R | Active |
| 1908 | Ocean Pearl Shipping & Services Pte Ltd
199300034R | Active |
| 1909 | Ocean Automation Pte Ltd
199305317H | Active |
| 1910 | Oms Holdings Pte. Ltd.
201009540N | Active |
| 1911 | O.p.v. (overseas) Singapore Pte Ltd
199306725N | Active |
| 1912 | Orgo Pte. Ltd.
200816732E | Active |
| 1913 | Oakstone Holdings Pte. Ltd.
200608209W | Active |
| 1914 | Omark Trading Singapore Pte Ltd
199000059E | Active |
| 1915 | Oh Chuan Huat Trading Pte Ltd
199001677M | Active |
| 1916 | Odc Logistics (s) Pte Ltd
199004507W | Active |
| 1917 | Oktalex Trading Pte. Ltd.
199001572D | Active |
| 1918 | Onix Dna Limited
T11UF4142L | Active |
| 1919 | Onyo Engineering Pte Ltd
199304762Z | Active |
| 1920 | Oceanfreighters Pte Ltd
199000009C | Active |