| Wong Fwu Hai | 4596 | Electrical | 2014-05-15 | K.L. Wong International |
| Wong Fwu Yuan | 5392 | Electrical | 2021-02-25 | K.L. Wong International |
| Wong Hai Chiu | 5626 | Mechanical | 2024-03-28 | Jurong Port Pte Ltd |
| Wong Hong Lit | 1610 | Civil | 1981-03-24 | Wong & Lee Consulting Engineers |
| Wong Hong Yi | 5671 | Electrical | 2024-07-26 | Housing & Development Board |
| Wong Jee Yeong | 4912 | Electrical | 2017-08-22 | PSA Corporation Limited |
| Wong Jenn Hoe | 5670 | Electrical | 2024-07-26 | Bescon Consulting Engineers Pte |
| Wong Ka How | 2598 | Civil | 1990-09-19 | KH Consultants |
| Wong Kah Siong | 2830 | Civil | 1992-06-15 | K S Wong Consulting Engineer |
| Wong Kam Leong | 5594 | Civil | 2023-10-26 | Longrove & Associates Pte. Ltd. |
| Wong Keam Tong | 4819 | Civil | 2016-10-18 | Applied Research Consultants Pte. Ltd. |
| Wong Keng Khang | 5693 | Civil | 2024-08-23 | KCL Consultants Pte. Ltd. |
| Wong Kian Keong | 1868 | Mechanical | 1983-01-25 | KK Wong Engineers |
| Wong Kian Lin | 5362 | Mechanical | 2020-11-19 | Inspect Now Pte. Ltd. |
| Wong King Fai | 5396 | Electrical | 2021-03-25 | SP PowerGrid Limited |
| Wong Kok Chew | 5442 | Electrical | 2022-01-27 | Hong An Engineering Pte Ltd |
| Wong Kok Liang | 2382 | Electrical | 1988-05-18 | K.L. Wong International |
| Wong Kong Sing | 3452 | Mechanical | 1998-12-17 | T.Y.Lin International Pte. Ltd. |
| Wong Kum Hoong | 3698 | Electrical | 2002-03-19 | Energy Market Authority |
| Wong Kum Kit (Huang JinJie) | 5118 | Electrical | 2018-07-19 | Land Transport Authority |
| Wong Lam King | 5550 | Civil | 2023-06-22 | GCS Engineers Pte. Ltd. |
| Wong Lawrence Yu | 5263 | Civil | 2019-10-17 | Bosons Consulting Group Pte. Ltd. |
| Wong Liang Heng Johnny | 3955 | Civil | 2005-04-19 | Housing & Development Board |
| Wong Ling Chye | 4356 | Civil | 2010-06-17 | Arup Singapore Private Limited |
| Wong Meng Foo @ Wong Meng Kit | 3508 | Civil | 1999-09-21 | Eureka Consultants |
| Wong Mun Cheok | 3476 | Mechanical | 1999-05-18 | William Ng Consultants Pte Ltd |
| Wong Mun Foo | 4280 | Mechanical | 2008-01-17 | CMP Consultants Private Limited |
| Wong Nam Sin | 4110 | Civil | 2007-01-26 | THES Pte. Ltd. |
| Wong Nee Chze | 3807 | Electrical | 2003-05-20 | Home Team Science and Technology Agency |
| Wong Nee Siong | 4255 | Electrical | 2007-07-19 | Kandenko Co. Ltd |