| 541 | Wing Classic Enterprise
52881172W | 有効 |
| 542 | Whites D'zigno Pte. Ltd.
200500339R | 有効 |
| 543 | Welcare Student Care Centre
T02SS0141C | 有効 |
| 544 | Wealth Metal Pte Ltd
199703796Z | 有効 |
| 545 | Warren Khoo Arbitration Chambers
53035530B | 有効 |
| 546 | Wts Travel & Tours Pte Ltd
198900083E | 有効 |
| 547 | Woody Teak Collection
52990518C | 有効 |
| 548 | World O' Kidz (pte.) Ltd.
200821043D | 有効 |
| 549 | World Square
52921281A | 有効 |
| 550 | Wong May Ling Dr
| 有効 |
| 551 | Women's Centre
| 有効 |
| 552 | Wong Soon Tee Dr
| 有効 |
| 553 | Wong Coco Pte Ltd
199407504H | 有効 |
| 554 | Wing Siang Long Pte Ltd
199600015M | 有効 |
| 555 | Window Cool Sunshade Products
52890499W | 有効 |
| 556 | Will-san Enterprise
| 有効 |
| 557 | Wild Wild Wet
| 有効 |
| 558 | Westley (import & Export) Co. Pte Ltd
199302399D | 有効 |
| 559 | Westlb Ag
T08UF7205H | 有効 |
| 560 | White Rose Cafe
35802000W | 有効 |
| 561 | Weng Cheong Co Pte (S) Ltd
| 有効 |
| 562 | West End Productions
44061900M | 有効 |
| 563 | Way Co Pte Ltd
| 有効 |
| 564 | Wavelength Communications Pte Ltd
199907288H | 有効 |
| 565 | Watersavr S'pore
| 有効 |
| 566 | Waterford Wedgwood Trading Singapore Pte Ltd
| 有効 |
| 567 | World Freight (pte) Ltd
198001910W | 有効 |
| 568 | World Courier S'pore Pte Ltd
| 有効 |
| 569 | Women's Clinic Of S'pore
| 有効 |
| 570 | Winter Int'l Group Pte Ltd
| 有効 |