| Daniel Ngu Kwong Wu | 5340 | Civil | 2020-10-15 | JIB Specialist Consultants Pte. Ltd. |
| Deepika Chandrasekaran | 5884 | Mechanical | 2026-04-23 | Squire Mech Private Limited |
| Deng Neng Qu | 4344 | Civil | 2010-02-18 | Urbanergy Consultant Pte. Ltd. |
| Deng Shao Mei | 4050 | Civil | 2006-05-16 | Building and Construction Authority |
| Devaraj s/o Sanmuganathan | 3699 | Civil | 2002-04-10 | PUB, Singapore's National Water Agency |
| Devipriya Tamil Selvan | 5868 | Electrical | 2026-03-26 | On Engineers Pte Ltd |
| Dhany Harjanto | 4728 | Civil | 2015-10-14 | DP Engineers Pte. Ltd. |
| Dhimant S/O Hiralal | 4275 | Electrical | 2007-11-15 | PUB, Singapore's National Water Agency |
| Dickson Fong Wen Jing | 5630 | Civil | 2024-03-28 | Arup Singapore Private Limited |
| Ding Kooi Kei | 5642 | Civil | 2024-05-23 | KCL Consultants Pte. Ltd. |
| Ding Wai Huat | 4440 | Electrical | 2012-04-20 | V3 Construction Pte. Ltd. |
| Djajadi Susastra | 3471 | Mechanical | 1999-04-20 | Virehorse |
| Dong Tao | 5203 | Mechanical | 2019-03-21 | JTC Corporation |
| Dong Wei | 5644 | Civil | 2024-06-27 | WSP Consultancy Pte. Ltd. |
| Dong Wei Bin | 3885 | Civil | 2004-05-05 | WRX Engineers Pte. Ltd. |
| Dong Yidian | 5787 | Civil | 2025-07-24 | Building and Construction Authority |
| Dony Lukman | 4836 | Electrical | 2016-10-18 | Syntigro Engineering Pte. Ltd. |
| Edelene Ee Si Ya | 4891 | Electrical | 2017-06-15 | SMRT Trains Ltd |
| Edi Hartono | 4843 | Civil | 2017-01-19 | SP PowerGrid Limited |
| Edward Lim Kang Huang | 4956 | Civil | 2017-10-23 | AIS-Hill Pte. Ltd. |
| Edy Harsono | 4761 | Civil | 2016-03-16 | Or Kim Peow Contractors Pte Ltd |
| Ee Hwee San | 4192 | Civil | 2007-04-19 | Building and Construction Authority |
| Ee Jiong Poh | 5060 | Civil | 2018-04-11 | RCY Pte. Ltd. |
| Ei Mon Tar | 5224 | Electrical | 2019-05-16 | ON Engineers Pte. Ltd. |
| Eio Hock Siang | 3343 | Civil | 1997-08-19 | CE Consulting Engineers |
| Eko Irwan Abadi | 5240 | Civil | 2019-07-18 | Aurecon Singapore (Pte.) Ltd. |
| Elaine Soong Siew Kim | 4832 | Mechanical | 2016-10-18 | W2Square Consultancy Pte. Ltd. |
| Elijah Lok Poh Seng | 4424 | Civil | 2011-11-17 | Thymn Pte. Ltd. |
| Elizabeth Liu Zi You | 4461 | Civil | 2012-08-16 | JTC Corporation |
| Elmady Wirama | 4841 | Civil | 2017-01-19 | Obayashi Singapore Private Limited |