| Agus Setianto Samingan | 4584 | Geotechnical Engineering | 2014-09-18 | Mott MacDonald Singapore Pte Limited |
| Ang Choon Huat | 4581 | Access Platform Engineering | 2017-03-23 | TUV SUD A-Reliance Pte. Ltd. |
| Ang Choon Huat | 4581 | Amusement Ride Engineering | 2014-09-18 | TUV SUD A-Reliance Pte. Ltd. |
| Ang Choon Huat | 4581 | Lift and Escalator Engineering | 2017-03-23 | TUV SUD A-Reliance Pte. Ltd. |
| Ang Choon Keat | 4342 | Protective Security Engineering | 2018-08-16 | Prostruct Consulting Pte. Ltd. |
| Ang Yan Lim | 4251 | Lift and Escalator Engineering | 2017-03-23 | Constructions Industrielles De La Mediterranee - CNIM Singapore Pte Ltd |
| Ang Yan Lim | 4251 | Access Platform Engineering | 2017-03-23 | Constructions Industrielles De La Mediterranee - CNIM Singapore Pte Ltd |
| Arulampalam Ramasthanan | 5341 | Geotechnical Engineering | 2020-10-15 | Bosons Consulting Group Pte. Ltd. |
| Augustinus Lioewanta | 2478 | Access Platform Engineering | 2017-03-23 | A. Lioe & Associates Pte. Ltd. |
| Augustinus Lioewanta | 2478 | Crane Engineering | 2017-03-23 | A. Lioe & Associates Pte. Ltd. |
| Bok Chee Meng | 3231 | Amusement Ride Engineering | 2011-02-17 | Bok Engineering Services |
| Bok Chee Meng | 3231 | Access Platform Engineering | 2018-01-08 | Bok Engineering Services |
| Bok Chee Meng | 3231 | Lift and Escalator Engineering | 2018-01-08 | Bok Engineering Services |
| Cai Linfan | 4720 | Lift and Escalator Engineering | 2018-12-14 | Land Transport Authority |
| Cham Wee Meng | 4064 | Geotechnical Engineering | 2014-06-23 | Jacobs International Consultants Pte. Ltd. |
| Chan Chee Keong | 5153 | Lift and Escalator Engineering | 2023-01-26 | Land Transport Authority |
| Chan Chee Kong | 3628 | Amusement Ride Engineering | 2011-02-17 | Nexco Enterprise |
| Chan Chee Kong | 3628 | Access Platform Engineering | 2017-04-20 | Nexco Enterprise |
| Chan Chee Kong | 3628 | Lift and Escalator Engineering | 2017-04-20 | Nexco Enterprise |
| Chan Chee Kong | 3628 | Crane Engineering | 2017-04-20 | Nexco Enterprise |
| Chan Hui Ching Nancy | 3125 | Geotechnical Engineering | 2007-06-14 | Fugro Singapore Marine Pte. Ltd. |
| Chan Wai Fong | 1730 | Pressure Vessel Engineering | 2017-06-15 | Chan Wai Fong |
| Chang Choon Meng | 4303 | Geotechnical Engineering | 2013-06-13 | Nice Infusion Civil Engineers |
| Chang Choong Meng | 4054 | Access Platform Engineering | 2017-05-22 | Team-6 Safety Training & Consultancy (S) Pte. Ltd. |
| Chang Choong Meng | 4054 | Amusement Ride Engineering | 2011-02-17 | Team-6 Safety Training & Consultancy (S) Pte. Ltd. |
| Chang Choong Meng | 4054 | Lift and Escalator Engineering | 2017-05-22 | Team-6 Safety Training & Consultancy (S) Pte. Ltd. |
| Chang Choong Meng | 4054 | Pressure Vessel Engineering | 2017-05-22 | Team-6 Safety Training & Consultancy (S) Pte. Ltd. |
| Chang Choong Meng | 4054 | Crane Engineering | 2017-05-22 | Team-6 Safety Training & Consultancy (S) Pte. Ltd. |
| Chee Yan Pong | 0572 | Access Platform Engineering | 2017-03-23 | Y P Chee & Associates |
| Chee Yan Pong | 0572 | Crane Engineering | 2017-03-23 | Y P Chee & Associates |