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| Tay Cheow Khoon | 2086 | Pressure Vessel Engineering | 2017-03-23 | Allplus Industrial Services Pte Ltd |
| Tay Cheow Khoon | 2086 | Crane Engineering | 2017-03-23 | Allplus Industrial Services Pte Ltd |
| Tay Cher Seng | 2777 | Lift and Escalator Engineering | 1992-03-18 | ME(TCS) consulting engineers |
| Tay Chong Meng Ivan | 4510 | Lift and Escalator Engineering | 2017-11-18 | Icon Consulting Engineers Private Ltd. |
| Tay Kuok Siang | 4733 | Geotechnical Engineering | 2020-11-19 | Mott MacDonald Singapore Pte Limited |
| Tee Liou | 4529 | Geotechnical Engineering | 2015-06-18 | Surbana Jurong Consultants Pte. Ltd. |
| Teh Tee Tee | 1584 | Crane Engineering | 1981-03-24 | TT Teh Consulting Engineers Pte. Ltd. |
| Teh Tee Tee | 1584 | Access Platform Engineering | 1981-03-24 | TT Teh Consulting Engineers Pte. Ltd. |
| Teng Chin Seng | 3455 | Lift and Escalator Engineering | 2017-04-20 | CST Engineering Services Pte. Ltd. |
| Teng Chin Seng | 3455 | Amusement Ride Engineering | 2011-02-17 | CST Engineering Services Pte. Ltd. |
| Teng Chin Seng | 3455 | Crane Engineering | 2017-04-20 | CST Engineering Services Pte. Ltd. |
| Teng Chin Seng | 3455 | Access Platform Engineering | 2017-04-20 | CST Engineering Services Pte. Ltd. |
| Teng Geok Seng | 3205 | Geotechnical Engineering | 2014-05-15 | C P Lim & Partners LLP |
| Teo Pei Ling | 4488 | Geotechnical Engineering | 2014-09-18 | TPL Geotechnical Consultants |
| Teo Sue Cing | 4802 | Geotechnical Engineering | 2025-11-27 | WSP Consultancy Pte. Ltd. |
| Tey Lian Hui Benjamin | 3815 | Pressure Vessel Engineering | 2017-02-16 | - |
| Tong Swei Yeh | 4124 | Geotechnical Engineering | 2012-03-22 | Aurecon Singapore (Pte.) Ltd. |
| Tong Yew Meng | 3175 | Pressure Vessel Engineering | 2017-04-20 | YM & Associates |
| Vallipuram Ganeshan | 3001 | Geotechnical Engineering | 2007-01-26 | AECOM Singapore Pte. Ltd. |
| Vallipuram Ganeshan | 3001 | Tunnelling Engineering | 2022-01-27 | AECOM Singapore Pte. Ltd. |
| Venkatachalam Janarthanan | 4546 | Tunnelling Engineering | 2023-05-18 | Meinhardt Infrastructure Pte. Ltd. |
| Venkatachalam Janarthanan | 4546 | Geotechnical Engineering | 2017-03-23 | Meinhardt Infrastructure Pte. Ltd. |
| Wang Xiaoning | 3981 | Geotechnical Engineering | 2007-05-17 | Tritech Consultants Pte. Ltd. |
| Wang Yongjie | 4450 | Geotechnical Engineering | 2014-04-17 | Geosoft Pte. Ltd. |
| Wei Jianyu | 4671 | Geotechnical Engineering | 2020-08-20 | Geoconsult Asia Singapore Pte Ltd |
| Wen Dazhi | 3677 | Geotechnical Engineering | 2007-06-14 | Changi Airport Group (Singapore) Pte. Ltd. |
| Wen Dazhi | 3677 | Tunnelling Engineering | 2021-07-21 | Changi Airport Group (Singapore) Pte. Ltd. |
| Wesley Gerard D'Aranjo | 2991 | Protective Security Engineering | 2018-12-14 | Beth-El (Asia Pacific) Pte. Ltd. |
| Wong Chee Teck William | 2778 | Lift and Escalator Engineering | 2017-03-23 | JT Technology |