| 6511 | Optimedia Singapore 52881326M | Active |
| 6512 | Ondeo Degremont T08UF6282C | Active |
| 6513 | Offitek Pte. Ltd. 200301929Z | Active |
| 6514 | Ocean Fly International Pte. Ltd. 200302993Z | Active |
| 6515 | Omci Germany Gmbh & Co. Kg T08UF8796F | Active |
| 6516 | Odeon Holdings (private) Limited 194700138C | Active |
| 6517 | Oceaneering International Pte Ltd 196900367R | Active |
| 6518 | Overseas Union Bank Limited 194700145C | Active |
| 6519 | Ong Chin Kiong Investments Pte Ltd 198400579M | Active |
| 6520 | Oil (asia) Pte. Ltd. 196900384H | Active |
| 6521 | Orchid Hotel Private Limited 196500133K | Active |
| 6522 | Ong & Company Private Limited 196800518H | Active |
| 6523 | Openfeel Pte. Ltd. 200302385C | Active |
| 6524 | Optival Solutions Pte. Ltd. 200302703R | Active |
| 6525 | Ontrans Pte. Ltd. 200303708G | Active |
| 6526 | On Cheong Company Private Limited 194900110R | Active |
| 6527 | Orion Financial Services Pte. Ltd. 201430727R | Active |
| 6528 | Orion Asia Consulting 48246400C | Active |
| 6529 | Office Secretaries Pte. Ltd. 201601750G | Active |
| 6530 | Oversea Chinese Bank Nominees Private Limited 194800054M | Active |
| 6531 | Outboard And Marine (pte.) Limited 196800629G | Active |
| 6532 | Ocbc Bank (china) Limited Chengdu Branch T08UF3495E | Active |
| 6533 | Open Image Systems Pte Ltd 199307471G | Active |
| 6534 | Oriental Twist Ltd T08UF5601F | Active |
| 6535 | O.c. Tanner Company T08UF4245L | Active |
| 6536 | Overseas Shipping Private Ltd 196800340K | Active |
| 6537 | Overseas Commercial Enterprise (pte) Ltd 196500190N | Active |
| 6538 | Ocean Bowling Private Limited 196400091G | Active |
| 6539 | Oh Consulting Pte. Ltd. 201314886C | Active |
| 6540 | Oregon Worldwide Inc T08UF4220K | Active |