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| 514 | Sunshine Electrical & Plumbing Contractor
24511900X | 启用 |
| 515 | Surfolk Food Mart Centre
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200204206E | 启用 |
| 518 | Seng Company
04666100W | 启用 |
| 519 | Sgl Services
52989740K | 启用 |
| 520 | Sinpol Pte. Ltd.
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| 521 | Saber Technical Services & Supplies
52987567E | 启用 |
| 522 | Starise Auto Pte. Ltd.
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| 523 | Singtest Technology Pte. Ltd.
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| 524 | Super Million Electronic Traders
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| 525 | Sum Heng Furniture Company
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| 526 | Sci Investments V
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| 527 | Sin Chong Goldsmith
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| 528 | S Ha Marine Services
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| 529 | Sparrow Global Air Services
53064115A | 启用 |
| 530 | Softedge Pte. Ltd.
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| 531 | Sybelle Fashion
22564200W | 启用 |
| 532 | Soon Hock Store
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| 533 | Sendex Plumbing Electrical Services
48077800X | 启用 |
| 534 | Singapore Fast Food Pte. Ltd.
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| 535 | Singapore Winfirst Pte. Ltd.
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| 536 | Sunrain Co
23870600A | 启用 |
| 537 | Sing Leong Signcrafts And Company
01776400M | 启用 |
| 538 | Soon Aik Renovation Works
33575000A | 启用 |
| 539 | Soon Guan Fishery Co
09008000M | 启用 |
| 540 | Sentosa Co
07907000X | 启用 |