| 661 | Zheng Yang Construction Pte Ltd 199901809G | 启用 |
| 662 | Zhen Jiang Construction (s) Pte Ltd 199900674R | 启用 |
| 663 | Zeus Logistic Company Limited T10UF0567G | 启用 |
| 664 | Zheng Li Shun Construction Pte. Ltd. 200813230C | 启用 |
| 665 | Zilix Technologies Pte Ltd 199400873R | 启用 |
| 666 | Ziconia Pte Ltd 199403633E | 启用 |
| 667 | Zonic Engineering Services 53293956E | 启用 |
| 668 | Zumi Technology Pte Ltd 199402135W | 启用 |
| 669 | Zhejiang Zhongyi Construction Group Co., Ltd. T15UF3334J | 启用 |
| 670 | Zhai Kian Giap Construction Pte Ltd 199800675D | 启用 |
| 671 | Zenith Power Engineering Pte. Ltd. 201221288C | 启用 |
| 672 | Zingrill Holdings Pte Ltd 200101877Z | 启用 |
| 673 | Zhong Lin Trading & Transportations Pte. Ltd. 200820182C | 启用 |
| 674 | Zotiq Visuals Pte. Ltd. 201530360R | 启用 |
| 675 | Zing Fashion 52891173B | 启用 |
| 676 | Zhing Sheen Renovation & Construction Contractor 52826335L | 启用 |
| 677 | Zenfredson 52903219L | 启用 |
| 678 | Zhongyi Industrial Investment Pte. Ltd. 201530349H | 启用 |
| 679 | Zai Xin Paper Trading 53288468W | 启用 |
| 680 | Zhong Gang Investments (singapore) Pte Ltd 199602477C | 启用 |
| 681 | Zatrio Pte Ltd 199603494K | 启用 |
| 682 | Zhi Ying Language School @ Yishun Pte. Ltd. 201106565H | 启用 |
| 683 | Ziontech Pte Ltd 199602130K | 启用 |
| 684 | Zen Healthcare International Pte. Ltd. 201530281W | 启用 |
| 685 | Ziwell Medical (s) Pte Ltd 199205273D | 启用 |
| 686 | Zeason Products Pte. Ltd. 199607908W | 启用 |
| 687 | Zingametall (s) Pte Ltd 199606878R | 启用 |
| 688 | Zen Voce Manufacturing Pte Ltd 199606407W | 启用 |
| 689 | Zenflex International Pte Ltd 199609022Z | 启用 |
| 690 | Zee Shan Impex Pte Ltd 199607233Z | 启用 |