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