| 871 | Olan
53190137L | 有効 |
| 872 | Old Andersonians Alumni Society
S99SS0052E | 有効 |
| 873 | Ong Leasing
53313601J | 有効 |
| 874 | Oyramid Associates
52879488D | 有効 |
| 875 | Ong Teng Cheong Labour Leadership Institute Alumni
S93SS0157A | 有効 |
| 876 | Orange Inc Vending Private Limited
200806364H | 有効 |
| 877 | Othello Association (singapore)
S99SS0034J | 有効 |
| 878 | Oh My Word!
53230284B | 有効 |
| 879 | Ohgitani Corporation
T07UF0189L | 有効 |
| 880 | One Marine Services
53235783C | 有効 |
| 881 | Ostinato Associates Pte. Ltd.
201420939C | 有効 |
| 882 | Orchard Road Business Association
S99SS0041D | 有効 |
| 883 | One North Energy Private Limited
201525062W | 有効 |
| 884 | Ocean Wide Cleaning Services
52863439M | 有効 |
| 885 | O Y Active Services
52821977D | 有効 |
| 886 | Offer & Save Superstore
52880896J | 有効 |
| 887 | Occupational And Environmental Health Society
T00SS0051G | 有効 |
| 888 | Ohm Instrumentation
52936300C | 有効 |
| 889 | Olleh Fashion
52869464B | 有効 |
| 890 | Opus One Music
52937583D | 有効 |
| 891 | Orchid Jayceettes Of Singapore
S88SS0010G | 有効 |
| 892 | Osk Lighting Studio Pte. Ltd.
201524247Z | 有効 |
| 893 | Oku & Co Singapore Pte. Ltd.
201532658G | 有効 |
| 894 | Overseas Medical Graduates Association
S97SS0135H | 有効 |
| 895 | Oc Resources (singapore)
S82SS0010K | 有効 |
| 896 | Oriental Automotive Centre
50727900W | 有効 |
| 897 | Ok Lam Enterprise
52897506D | 有効 |
| 898 | Oh La Ho Trading
52896291D | 有効 |
| 899 | Oses Technologies
52880640L | 有効 |
| 900 | Ong Seng Hin
53287455B | 有効 |