| Aden Chua Ming Jian | 4825 | Civil | 2016-10-18 | Arup Singapore Private Limited |
| Adi Prawira Koesoemo Widagdo | 5257 | Civil | 2019-10-17 | Eksan Engineering LLP |
| Aditya Santoso | 5166 | Mechanical | 2018-10-18 | Land Transport Authority |
| Adrain Tan Chuen Kiat | 4495 | Electrical | 2012-11-22 | AECOM Singapore Pte. Ltd. |
| Adrian Fong Wei Yi | 5489 | Civil | 2022-09-29 | Sembcorp Architects & Engineers Pte. Ltd. |
| Adrian Stewart John Billinghurst | 4107 | Civil | 2007-01-26 | WSP Consultancy Pte. Ltd. |
| Agung Rinaldi Santoso | 5250 | Civil | 2019-09-19 | AECOM Singapore Pte. Ltd. |
| Agus Setianto Samingan | 4584 | Civil | 2014-02-20 | Mott MacDonald Singapore Pte Limited |
| Ahmad Amirul Hakim Bin 'A'lauddin | 5605 | Electrical | 2024-01-25 | SP PowerGrid Limited |
| Ahmad Dani Bin Sulaiman | 4999 | Chemical | 2017-11-18 | Shell Singapore Pte. Ltd. |
| Ahmad Fawzi Ayuby | 2862 | Mechanical | 1992-09-16 | Surbana Jurong Consultants Pte. Ltd. |
| Ahmad Nadim Bin Zainal | 5178 | Electrical | 2018-10-18 | Building and Construction Authority |
| Alex Leong Wai Mun | 5176 | Electrical | 2018-10-18 | SP Group |
| Alexis Lee Yun Kwang | 5925 | Civil | 2026-06-25 | AECOM Singapore Pte. Ltd. |
| Allan Tay Eng Mian | 5332 | Civil | 2020-09-17 | Mott MacDonald Singapore Pte Limited |
| Alvin Ong Thiam Heng | 5713 | Mechanical | 2024-10-24 | HPX Consulting Engineers Pte. Ltd. |
| Alvin Quah Shu Chuan | 5325 | Mechanical | 2020-08-20 | TUV SUD PSB Pte Ltd |
| Amos Soon Ee Ren | 5852 | Electrical | 2026-02-26 | Defence Science And Technology Agency (DSTA) |
| An Shee Wei | 4689 | Civil | 2015-06-18 | Land Transport Authority |
| Anastasia Maria Santoso | 5174 | Civil | 2018-10-18 | Building and Construction Authority |
| Andra Wiedyanto Thedy | 4878 | Civil | 2017-05-22 | Marina Bay Sands Pte. Ltd. |
| Andreas Tumengan | 2050 | Civil | 1984-04-04 | Surbana Jurong Consultants Pte. Ltd. |
| Andrew Tay Kim Tat | 5183 | Electrical | 2018-12-14 | Beca Carter Hollings & Ferner (S.E.Asia) Pte Ltd |
| Andy Ng Yao Hong | 5766 | Electrical | 2025-05-22 | AECOM Singapore Pte. Ltd. |
| Andy Teng Kuang Yong | 4929 | Civil | 2017-09-19 | WSP Consultancy Pte. Ltd. |
| Ang Boon Kian | 2928 | Civil | 1993-05-19 | Ramboll Pte. Ltd. |
| Ang Boon Wee | 5344 | Mechanical | 2020-10-15 | HDR Consulting Pte. Ltd. |
| Ang Chee Keong | 3980 | Electrical | 2005-06-21 | Singapore District Cooling Pte. Ltd. |
| Ang Cheng Hua | 4810 | Mechanical | 2016-09-22 | Surbana Jurong Consultants Pte. Ltd. |
| Ang Chin Du | 2149 | Electrical | 1985-04-16 | CDA Consultancy Pte. Ltd. |