| 571 | Wild Wild Wet
| 有効 |
| 572 | Westley (import & Export) Co. Pte Ltd
199302399D | 有効 |
| 573 | Westlb Ag
T08UF7205H | 有効 |
| 574 | White Rose Cafe
35802000W | 有効 |
| 575 | Weng Cheong Co Pte (S) Ltd
| 有効 |
| 576 | West End Productions
44061900M | 有効 |
| 577 | Way Co Pte Ltd
| 有効 |
| 578 | Wavelength Communications Pte Ltd
199907288H | 有効 |
| 579 | Watersavr S'pore
| 有効 |
| 580 | Waterford Wedgwood Trading Singapore Pte Ltd
| 有効 |
| 581 | World Freight (pte) Ltd
198001910W | 有効 |
| 582 | World Courier S'pore Pte Ltd
| 有効 |
| 583 | Women's Clinic Of S'pore
| 有効 |
| 584 | Winter Int'l Group Pte Ltd
| 有効 |
| 585 | Wing Yap Glass Construction
48588200X | 有効 |
| 586 | Wing Loong Industries Pte Ltd.
197200626W | 有効 |
| 587 | Wincraft
24114600C | 有効 |
| 588 | Wh Dental Surgeons
T07CD3419H | 有効 |
| 589 | Wee Wee Laundry Service
52969830K | 有効 |
| 590 | Wee Soon Teck Albert Dr
| 有効 |
| 591 | Wealthgate International Trading Pte Ltd
199503446E | 有効 |
| 592 | Wason Pte. Ltd.
197601836K | 有効 |
| 593 | Wascolux Self Service Center
35302900M | 有効 |
| 594 | Wang Fu Industry (pte) Ltd
198101862M | 有効 |
| 595 | Woon Brothers Pte Ltd
199401303K | 有効 |
| 596 | Woleco Hotel Supplies Pte Ltd
198600074M | 有効 |
| 597 | Wisma Electrical Engineering Services
41882900D | 有効 |
| 598 | Window To The Past Pte Ltd
196800553E | 有効 |
| 599 | Wing Teck Pawnshop Pte Ltd
199200034M | 有効 |
| 600 | Word Image Pte Ltd
199206220D | 有効 |