| 661 | Welmark Int'l Pte Ltd
| Active |
| 662 | Wavex Technologies Pte. Ltd.
200100532N | Active |
| 663 | Water & Wastewater Asia
| Active |
| 664 | Wah Teck Pte Ltd
| Active |
| 665 | Wah Luen Furniture (S) Pte Ltd
| Active |
| 666 | Woodsville Florist Pte Ltd
200009221K | Active |
| 667 | Wood Star Co Pte Ltd
199206090D | Active |
| 668 | World Toilet Organization Ltd
| Active |
| 669 | Witte Far East Pte Ltd
200102220H | Active |
| 670 | Wing Joo Loong Ginseng Hong
| Active |
| 671 | Window Image
53109133C | Active |
| 672 | Wicked Chocs
53048219C | Active |
| 673 | Westlink Marketing Services Pte. Ltd.
198101328N | Active |
| 674 | Westlab Pte Ltd
199701699E | Active |
| 675 | Westfalia Separator (S E A) Pte Ltd
| Active |
| 676 | Willy Int'l (S) Pte Ltd
| Active |
| 677 | Weikeng Technology Pte. Ltd.
200100558E | Active |
| 678 | Weidmuller Pte Ltd
198103714H | Active |
| 679 | Weetek Garment Co
30123200L | Active |
| 680 | Wei Min Clinic
| Active |
| 681 | Wells Music Publishers
52840201C | Active |
| 682 | Well Born Pte. Ltd.
197802175M | Active |
| 683 | Wang Chee Cheng Adrian
| Active |
| 684 | Wcp Engineering & Trading Pte. Ltd.
200305632W | Active |
| 685 | Wyse Exclusive (s) Pte Ltd
199703074K | Active |
| 686 | Wong Fook Yan Rubber Stamp Manufacturer
36312900J | Active |
| 687 | Wisco Pte Ltd
199203178K | Active |
| 688 | Washy Washy Laundry Pte Ltd
198803436W | Active |
| 689 | Wah Son Engineering Pte. Ltd.
199104633K | Active |
| 690 | Wu Yi Che Dr
| Active |