| 601 | Wong Thomas & Leong 53130817X | 启用 |
| 602 | Wilson Cables Private Limited 197401983H | 启用 |
| 603 | Wheels For Fun Pte Ltd 198904804R | 启用 |
| 604 | Whitney Planner
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| 605 | Wei Cian Foods Pte Ltd 199706644H | 启用 |
| 606 | Wellbond Mfg Services Pte Ltd
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| 607 | Wee Tiong (s) Pte Ltd 199308567K | 启用 |
| 608 | Water Engineers S'pore Pte Ltd
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| 609 | Wong Meng Yeong Henry Dr
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| 610 | Women's Specialist Associates
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| 611 | Winzone Engineering (s) Pte. Ltd. 200712955D | 启用 |
| 612 | Wing Seong Fatty's (albert) Restaurant Pte Ltd 199902680W | 启用 |
| 613 | Wine Universe (S'pore) Pte Ltd
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| 614 | Wing's Woodcraft & Antique 53031124X | 启用 |
| 615 | Winnie Trading Pte Ltd
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| 616 | Wavelab Scientific Pte Ltd
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| 617 | Watkins Syndicate S'pore Pte Ltd
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| 618 | Wearne Bros Services Pte Ltd
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| 619 | Wisma M&e 52898286M | 启用 |
| 620 | Wing Yap Motor 22676900C | 启用 |
| 621 | Willas-array S'pore (Pte) Ltd
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| 622 | White Weddings 53019799E | 启用 |
| 623 | Wilmax Control Systems Pte Ltd 199804981C | 启用 |
| 624 | Westech Systems Pte Ltd 199106255M | 启用 |
| 625 | Wendy Garments 36559500D | 启用 |
| 626 | Wharton Junior Academy Pte Ltd 200105340W | 启用 |
| 627 | Web Economy Technology Pte Ltd 200000343E | 启用 |
| 628 | Web Systems Pte Ltd 199601074N | 启用 |
| 629 | Wee Breast & General Surgery
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| 630 | Waterscape System Professionals 52847236D | 启用 |