| Tan Wu Lin | 5064 | Civil | 2018-05-17 | WL Tan Consultant |
| Tan Yan Hao | 5541 | Mechanical | 2023-05-18 | JTC Corporation |
| Tan Yan Kiat | 1887 | Mechanical | 1983-03-11 | Belmacs Pte Ltd |
| Tan Yang Ping Kevin | 4557 | Electrical | 2013-10-17 | Rotary Switchgear & Testing |
| Tan Yew Chai | 4090 | Civil | 2006-11-21 | DP Engineers Pte. Ltd. |
| Tan Yi Liang | 4517 | Civil | 2013-06-13 | Changi Airport Planners And Engineers Pte. Ltd. |
| Tan Yoke Lin | 3200 | Electrical | 1996-02-14 | Octis Technology Pte. Ltd. |
| Tan Yong Hoa | 1142 | Mechanical | 1976-02-24 | WN Consultants Pte. Ltd. |
| Tan Yong Hua, Theodore | 5603 | Electrical | 2024-01-25 | SP PowerGrid Limited |
| Tan Yong Tee | 3006 | Electrical | 1994-03-16 | Singapore Institute of Power and Gas |
| Tan Yoong Heng | 4150 | Civil | 2007-02-23 | Arup Singapore Private Limited |
| Tan Yuan Suan | 4199 | Electrical | 2007-05-17 | SBS Transit Rail Pte. Ltd. |
| Tan Zhi Howe | 5915 | Civil | 2026-06-25 | Mott MacDonald Singapore Pte Ltd |
| Tan Zhi Yong Charles | 4852 | Mechanical | 2017-02-16 | Tribute Inspection and Engineering |
| Tang Chung Yi | 3537 | Civil | 2000-04-18 | T.Y.Lin International Pte. Ltd. |
| Tang Hooi Kiang | 3903 | Electrical | 2004-07-26 | - |
| Tang Ing Hua | 3228 | Civil | 1996-06-14 | Aston Consulting Engineers |
| Tang Kian Cheong | 1929 | Mechanical | 1983-05-30 | United Project Consultants Pte Ltd |
| Tang Kok Ming | 3597 | Mechanical | 2000-11-28 | CPG Consultants Pte Ltd |
| Tang Koon Guan | 4666 | Civil | 2015-02-13 | KGT Consultants |
| Tang Li Qiang | 5555 | Electrical | 2023-06-22 | SJ Thames Consulting Engineers Pte. Ltd. |
| Tang Loon Tiong | 4351 | Electrical | 2010-05-20 | SP Group |
| Tang Pei Luen | 3392 | Civil | 1998-04-21 | JTC Corporation |
| Tang Sek Kwan | 3271 | Civil | 1996-08-07 | - |
| Tang Tai Ting | 4652 | Civil | 2014-10-21 | Harvest Consulting Engineers LLP |
| Tang Tat Kwong | 2732 | Civil | 1991-11-20 | CHECC(Singapore) Pte. Ltd. |
| Tang Wai Kin | 5380 | Mechanical | 2021-01-21 | National Environment Agency |
| Tang Weng Cheong | 4014 | Electrical | 2005-11-15 | Atroy Services |
| Tang Weng Yew | 4140 | Civil | 2007-02-23 | Sembcorp Architects & Engineers Pte. Ltd. |
| Tang Yuen Hou Michael | 3834 | Mechanical | 2003-08-16 | Surbana Jurong Consultants Pte. Ltd. |