| 1921 | Osa Holdings (s) Pte Ltd
199407156R | 启用 |
| 1922 | Orwin Development Limited
199407593M | 启用 |
| 1923 | Oriental Garden Restaurant & Catering
52557000D | 启用 |
| 1924 | Omp Holdings Pte Ltd
199606694H | 启用 |
| 1925 | Oriimec Corporation Of Singapore Pte Ltd
199401431C | 启用 |
| 1926 | Overseas Chartering Pte Ltd
199900855K | 启用 |
| 1927 | Oid Pte. Ltd.
199301567R | 启用 |
| 1928 | Obs Financial Solutions Pte. Ltd.
199304758M | 启用 |
| 1929 | Old & Young Salon
53284039M | 启用 |
| 1930 | Ong Av Specialists Pte Ltd
199301969R | 启用 |
| 1931 | Ohb Real Estate Consultants & Services Pte Ltd
199305430M | 启用 |
| 1932 | Oceandale Investment Pte Ltd
199307064H | 启用 |
| 1933 | Oakshill Investments (s) Pte Ltd
199302530W | 启用 |
| 1934 | Ong Asia Limited
199301724C | 启用 |
| 1935 | O & Y Builders Pte Ltd
199300468R | 启用 |
| 1936 | Ocean Pearl Shipping & Services Pte Ltd
199300034R | 启用 |
| 1937 | Ocean Automation Pte Ltd
199305317H | 启用 |
| 1938 | Oms Holdings Pte. Ltd.
201009540N | 启用 |
| 1939 | O.p.v. (overseas) Singapore Pte Ltd
199306725N | 启用 |
| 1940 | Orgo Pte. Ltd.
200816732E | 启用 |
| 1941 | Oakstone Holdings Pte. Ltd.
200608209W | 启用 |
| 1942 | Omark Trading Singapore Pte Ltd
199000059E | 启用 |
| 1943 | Oh Chuan Huat Trading Pte Ltd
199001677M | 启用 |
| 1944 | Odc Logistics (s) Pte Ltd
199004507W | 启用 |
| 1945 | Oktalex Trading Pte. Ltd.
199001572D | 启用 |
| 1946 | Onix Dna Limited
T11UF4142L | 启用 |
| 1947 | Onyo Engineering Pte Ltd
199304762Z | 启用 |
| 1948 | Oceanfreighters Pte Ltd
199000009C | 启用 |
| 1949 | Ollevan Pte Ltd
199004325M | 启用 |
| 1950 | Ogl Pte Ltd
199004364M | 启用 |