| Ng Lay Ho | 5445 | Electrical | 2022-01-27 | SP Group |
| Ng Lee Chian | 3919 | Civil | 2004-09-21 | SKL Consultants |
| Ng Lee Shian | 3995 | Mechanical | 2005-08-09 | Shell Singapore Pte Ltd |
| Ng Lee Veen | 5371 | Mechanical | 2021-01-21 | Mott MacDonald Singapore Pte Limited |
| Ng Ling Choo | 4732 | Civil | 2015-10-14 | CE Consultants |
| Ng Ming Chen | 4089 | Civil | 2006-11-21 | Housing & Development Board |
| Ng Peck Nah | 4082 | Civil | 2006-10-17 | Housing & Development Board |
| Ng Peng Boon | 1903 | Civil | 1983-04-07 | KCL Consultants Pte. Ltd. |
| Ng Pin Yuan | 5770 | Civil | 2025-05-22 | One Smart Engineering Pte. Ltd. |
| Ng Poh Hwa | 4687 | Electrical | 2015-05-19 | SP Group |
| Ng Seng Yoong | 3219 | Civil | 1996-05-08 | KTC Civil Engineering & Construction Pte Ltd |
| Ng Shie Shyang | 5088 | Civil | 2018-06-21 | Land Transport Authority |
| Ng Shu Wei Sharron | 4355 | Civil | 2010-06-17 | ECAS Consultants Pte. Ltd. |
| Ng Siew Sing | 1964 | Mechanical | 1983-08-30 | AG Engineering & Safety Services |
| Ng Siew Wah | 1478 | Mechanical | 1980-08-19 | Sanli M&E Pte Ltd |
| Ng Sin Kwong | 4010 | Electrical | 2005-09-20 | J M Pang & Associates Pte Ltd |
| Ng Soon Hua | 2444 | Civil | 1989-01-11 | SH Ng Consultants Pte. Ltd. |
| Ng Sun Robert | 3426 | Civil | 1998-09-15 | RNS Consultants Pte. Ltd. |
| Ng Swee How | 2697 | Civil | 1991-07-17 | R.J. Crocker Consultants Pte. Ltd. |
| Ng Swee Tong | 3400 | Civil | 1998-05-19 | MOH Holdings Pte Ltd |
| Ng Teck Eng | 4457 | Electrical | 2012-06-21 | Building and Construction Authority |
| Ng Teong Soon | 2773 | Mechanical | 1992-03-18 | Ng Teong Soon Consulting Engineer |
| Ng Thiam Yong Jeffrey | 4570 | Civil | 2013-10-17 | DP Engineers Pte. Ltd. |
| Ng Thin Teng | 0470 | Mechanical | 1972-07-14 | D'perception Singapore Pte. Ltd. |
| Ng Tian Shun | 5768 | Electrical | 2025-05-22 | J Roger Preston (Singapore) Pte Ltd |
| Ng Tiong Guan | 4136 | Civil | 2007-02-23 | - |
| Ng Tong Hai | 2650 | Civil | 1991-04-17 | HS Engineering Consultants |
| Ng Tong Leng | 1255 | Mechanical | 1977-05-19 | NTL Engineering Services |
| Ng Tsan Ying | 3835 | Mechanical | 2003-08-16 | Avant Consulting Engineers |
| Ng Wee Giap Gary | 3795 | Civil | 2003-03-18 | GNG Consultants Pte. Ltd. |