Specialist Professional Engineers
| Name | Registration number | Specialised branch | Registered since | Practice |
|---|---|---|---|---|
| Yong Kuan Yau | 3570 | Tunnelling Engineering | 2022-04-28 | LYL Consultants Pte. Ltd. |
| Yuan Zhen | 4324 | Geotechnical Engineering | 2014-05-15 | AECOM Singapore Pte. Ltd. |
| Yulius Halim Gunawan | 5159 | Geotechnical Engineering | 2025-11-27 | CPG Consultants Pte Ltd |
| Zhang Bin | 4573 | Geotechnical Engineering | 2014-01-16 | Land Transport Authority (LTA) |
| Zhang Xu | 4371 | Geotechnical Engineering | 2011-11-17 | WSP Consultancy Pte. Ltd. |
| Zhang Yaodong | 4532 | Geotechnical Engineering | 2014-06-23 | Surbana Jurong Consultants Pte. Ltd. |
| Zhuang Shimin | 5226 | Geotechnical Engineering | 2023-09-28 | IntegreX Consulting |