| 1891 | Offshore Construction Specialists Pte. Ltd.
200720801G | Active |
| 1892 | Onenine57 Pte. Ltd.
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| 1893 | On'e Mind & Body
53097192E | Active |
| 1894 | Ok Express Pte. Ltd.
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| 1895 | Ogeco21 Tech
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| 1896 | Omt Pte. Ltd.
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| 1897 | Obn 2016 Pte. Ltd.
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| 1898 | Oph Marymount Limited
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| 1899 | Osteopore International Pte. Ltd.
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| 1900 | Oxgate Pte Ltd
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| 1901 | Oni Global Brands Pte. Ltd.
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| 1902 | One Stop Mini Mart
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| 1903 | Old Man And Fox Academy
53318547E | Active |
| 1904 | Onp Global Pte. Ltd.
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| 1905 | Osa Holdings (s) Pte Ltd
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| 1906 | Orwin Development Limited
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| 1907 | Oriental Garden Restaurant & Catering
52557000D | Active |
| 1908 | Omp Holdings Pte Ltd
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| 1909 | Oriimec Corporation Of Singapore Pte Ltd
199401431C | Active |
| 1910 | Overseas Chartering Pte Ltd
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| 1911 | Oid Pte. Ltd.
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| 1912 | Obs Financial Solutions Pte. Ltd.
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| 1913 | Old & Young Salon
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| 1914 | Ong Av Specialists Pte Ltd
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| 1915 | Ohb Real Estate Consultants & Services Pte Ltd
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| 1916 | Oceandale Investment Pte Ltd
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| 1917 | Oakshill Investments (s) Pte Ltd
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| 1918 | Ong Asia Limited
199301724C | Active |
| 1919 | O & Y Builders Pte Ltd
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| 1920 | Ocean Pearl Shipping & Services Pte Ltd
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