| Tan Swee Chiang | 2804 | Electrical | 1992-05-15 | - |
| Tan Swee Choon | 5701 | Mechanical | 2024-09-26 | Chevalier Singapore Holdings Pte. Ltd. |
| Tan Swee Hong | 5294 | Civil | 2019-12-05 | Home Team Science and Technology Agency |
| Tan Swee Hong | 2965 | Civil | 1993-10-20 | CSCE Pte. Ltd. |
| Tan Swee Keng | 4513 | Civil | 2013-05-16 | E-Struct Consulting Pte. Ltd. |
| Tan Sze Yen | 3659 | Electrical | 2001-09-18 | Beca Carter Hollings & Ferner (S.E.Asia) Pte Ltd |
| Tan Teck Cheng | 2896 | Civil | 1993-01-20 | Ramboll Pte. Ltd. |
| Tan Teck Lee | 4727 | Electrical | 2015-10-14 | Singapore Institute of Power and Gas Pte. Ltd. |
| Tan Teck Wee | 4208 | Electrical | 2007-05-17 | SP Group |
| Tan Teck Wei | 5715 | Mechanical | 2024-10-24 | Land Transport Authority |
| Tan Tee Hong | 2423 | Electrical | 1988-11-25 | PCS Pte. Ltd. |
| Tan Teng Hooi | 2196 | Civil | 1985-12-30 | Singapore University Of Social Sciences |
| Tan Teow Beng Victor | 2555 | Electrical | 1990-04-18 | Desicon Electrical |
| Tan Thiam Soon | 3118 | Civil | 1995-04-13 | Singapore Institute Of Technology |
| Tan Tian Wee | 4627 | Civil | 2014-09-18 | Defi Civil Engineers |
| Tan Tien Kway | 4503 | Mechanical | 2013-03-21 | Bescon Engineering Services Pte. Ltd. |
| Tan Tiong Lei | 2235 | Mechanical | 1986-04-17 | United Project Consultants Pte Ltd |
| Tan Toa You | 4527 | Electrical | 2013-08-23 | Tan & Tan Engineering |
| Tan Tock Peng | 4372 | Electrical | 2010-09-17 | FTTP Consultants |
| Tan Tuang Ho | 4755 | Civil | 2016-02-16 | Building and Construction Authority |
| Tan Wah Hong | 3395 | Mechanical | 1998-04-21 | Tervin & Karyl Consultants Pte. Ltd. |
| Tan Wai Houng | 4377 | Civil | 2010-11-18 | Meinhardt Infrastructure Pte. Ltd. |
| Tan Wai Kim | 2645 | Civil | 1991-03-20 | WM Leow Consultants Pte. Ltd. |
| Tan Wee Chong Roger | 4002 | Civil | 2005-09-20 | PUB, Singapore's National Water Agency |
| Tan Wee Kiat | 4127 | Civil | 2007-02-23 | CPG Consultants Pte Ltd |
| Tan Wee Lip Willie | 5231 | Mechanical | 2019-06-20 | China Construction (South Pacific) Development Co Pte Ltd |
| Tan Wee Yang | 5610 | Mechanical | 2024-01-25 | Land Transport Authority |
| Tan Wei Kwang | 4877 | Civil | 2017-05-22 | LSW Consulting Engineers Pte. Ltd. |
| Tan Wei Qiang | 5459 | Electrical | 2022-04-28 | PUB, Singapore's National Water Agency |
| Tan Wooi Kiang | 3513 | Civil | 1999-09-21 | FT Inc. Consultants |