| 1921 | Ocean Automation Pte Ltd
199305317H | Active |
| 1922 | Oms Holdings Pte. Ltd.
201009540N | Active |
| 1923 | O.p.v. (overseas) Singapore Pte Ltd
199306725N | Active |
| 1924 | Orgo Pte. Ltd.
200816732E | Active |
| 1925 | Oakstone Holdings Pte. Ltd.
200608209W | Active |
| 1926 | Omark Trading Singapore Pte Ltd
199000059E | Active |
| 1927 | Oh Chuan Huat Trading Pte Ltd
199001677M | Active |
| 1928 | Odc Logistics (s) Pte Ltd
199004507W | Active |
| 1929 | Oktalex Trading Pte. Ltd.
199001572D | Active |
| 1930 | Onix Dna Limited
T11UF4142L | Active |
| 1931 | Onyo Engineering Pte Ltd
199304762Z | Active |
| 1932 | Oceanfreighters Pte Ltd
199000009C | Active |
| 1933 | Ollevan Pte Ltd
199004325M | Active |
| 1934 | Ogl Pte Ltd
199004364M | Active |
| 1935 | Ocean Man United Pte Ltd
199004085E | Active |
| 1936 | Omni Marketing Global Limited
T11UF0409E | Active |
| 1937 | Ossia Holdings Pte. Ltd.
199303835M | Active |
| 1938 | Optim Application (s) Pte Ltd
199306230Z | Active |
| 1939 | Oracle Trading Pte Ltd
199301954H | Active |
| 1940 | Owap Investment Pte Ltd
199305629G | Active |
| 1941 | Orion Technology (s) Pte Ltd
199303383C | Active |
| 1942 | Overseas Carpets Limited
T10UF3531L | Active |
| 1943 | Omg Live Limited
T11UF0412E | Active |
| 1944 | Olivine Commercial Corp
T10UF4069H | Active |
| 1945 | Origins Healthcare Pte Ltd
199300910W | Active |
| 1946 | Orbit Asia Co Ltd.
T11UF4846J | Active |
| 1947 | Opl Services Pte Ltd
199303475E | Active |
| 1948 | Olfi Lux Intermediate S.a.r.l.
T11UF5196L | Active |
| 1949 | Orient 2000 Pte Ltd
199303722M | Active |
| 1950 | Olympus International Holdings (cayman) Ltd.
T12UF0085C | Active |