| Gunadi Wihardjo | 5230 | Access Platform Engineering | 2025-01-23 | GW Professional Engineering Services |
| Guo Zeqin | 3638 | Geotechnical Engineering | 2010-05-20 | Land Transport Authority |
| Gwee Boon Hong | 4568 | Geotechnical Engineering | 2015-09-21 | L&M Foundation Specialist Pte Ltd |
| Hashim Bin Mansoor | 4168 | Lift and Escalator Engineering | 2017-07-18 | Building and Construction Authority |
| Hashim Bin Mansoor | 4168 | Crane Engineering | 2017-07-18 | Building and Construction Authority |
| Hashim Bin Mansoor | 4168 | Pressure Vessel Engineering | 2017-07-18 | Building and Construction Authority |
| Hashim Bin Mansoor | 4168 | Access Platform Engineering | 2017-07-18 | Building and Construction Authority |
| Hashim Bin Mansoor | 4168 | Amusement Ride Engineering | 2011-02-17 | Building and Construction Authority |
| Hatfield Raymond Laurie | 2762 | Geotechnical Engineering | 2007-07-19 | GNG Consultants Pte. Ltd. |
| He Hongbo | 5130 | Geotechnical Engineering | 2018-08-16 | VCE Consultants & Engineering Pte. Ltd. |
| Hee Ah Mui | 2039 | Geotechnical Engineering | 2007-07-19 | AECOM Singapore Pte. Ltd. |
| Heng Eu Chang Leonard | 3617 | Protective Security Engineering | 2018-08-16 | Defence Science and Technology Agency |
| Heng Kok Hui | 4572 | Geotechnical Engineering | 2014-05-15 | Heng Consulting Engineers |
| Ho Ah Wah Gerard | 1017 | Pressure Vessel Engineering | 2017-04-20 | Hazard Control Engineering Pte. Ltd. |
| Hu Xiangbin | 4281 | Geotechnical Engineering | 2011-09-15 | Core Tech Consultants Pte. Ltd. |
| Huang Yongqing | 5090 | Geotechnical Engineering | 2024-06-27 | Building and Construction Authority |
| Ian Teh Yi Tian | 4756 | Crane Engineering | 2017-10-23 | Future Inspection Services |
| Ian Teh Yi Tian | 4756 | Lift and Escalator Engineering | 2017-10-23 | Future Inspection Services |
| Ian Teh Yi Tian | 4756 | Access Platform Engineering | 2017-10-23 | Future Inspection Services |
| Indrayogan Yogarajah | 3353 | Geotechnical Engineering | 2007-03-15 | Noma Consulting Pte. Ltd. |
| Ivan K Edison | 4822 | Geotechnical Engineering | 2024-07-26 | KTP Consultants Pte Ltd |
| Jee Yi Yng | 4123 | Tunnelling Engineering | 2022-10-20 | AECOM Singapore Pte. Ltd. |
| Jee Yi Yng | 4123 | Geotechnical Engineering | 2010-02-18 | AECOM Singapore Pte. Ltd. |
| John Baptist Tan Kar Him | 4008 | Crane Engineering | 2017-03-23 | - |
| Johnson Nurjan Boewono @Ng Cheng Huat | 4175 | Lift and Escalator Engineering | 2017-11-18 | Surbana Jurong Consultants Pte. Ltd. |
| Justin Tai Wen Xiong | 5313 | Amusement Ride Engineering | 2025-01-23 | Building and Construction Authority |
| Justin Tai Wen Xiong | 5313 | Lift and Escalator Engineering | 2023-08-24 | Building and Construction Authority |
| Kam Mun Wai | 3479 | Geotechnical Engineering | 2007-07-19 | Meinhardt (Singapore) Pte Ltd |
| Kandiah Paskkaran | 5113 | Geotechnical Engineering | 2025-03-27 | Land Transport Authority |
| Kho Chza Main | 4147 | Geotechnical Engineering | 2010-06-24 | CPG Consultants Pte Ltd |