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| Choong Hai Ling | 5632 | Civil | 2024-04-25 | - |
| Choong Pei Nung | 4474 | Mechanical | 2012-09-20 | Meinhardt (Singapore) Pte Ltd |
| Choong Po Siong | 4678 | Electrical | 2015-05-19 | Housing & Development Board |
| Choong Zhi-Ming Jerome | 4847 | Electrical | 2017-01-19 | SP PowerGrid Limited |
| Chou Kum Cheong | 4470 | Electrical | 2012-09-20 | Wah Loon Engineering Pte. Ltd. |
| Chow Chee Kin | 5265 | Civil | 2019-10-17 | CKMbT International Pte. Ltd. |
| Chow Gee Yeong | 3204 | Civil | 1996-02-14 | The Engineers Collaborative LLP |
| Chow Kai Chung | 5200 | Civil | 2019-01-17 | Singapore Land Authority |
| Chow Li Yee | 4987 | Chemical | 2017-11-18 | IQS SERVICES PTE. LTD. |
| Chow Siew Hung | 4606 | Civil | 2014-06-23 | Ministry of Education |
| Chow Wei Foo | 4096 | Civil | 2006-11-21 | Building and Construction Authority |
| Chow Wei Jian | 5612 | Civil | 2024-01-25 | AECOM Singapore Pte. Ltd. |
| Chow Wei Mun | 4114 | Civil | 2007-01-26 | Building and Construction Authority |
| Chow Weng Cheong | 1484 | Civil | 1980-08-19 | Tritech Consultants Pte. Ltd. |
| Chow Weng Lee | 4139 | Civil | 2007-02-23 | Ramboll Pte. Ltd. |
| Chow Yew Meng | 2084 | Electrical | 1984-08-28 | UES Holdings Pte Ltd |
| Choy Chung Han | 4540 | Civil | 2013-10-17 | Engineers Alliance Pte. Ltd. |
| Choy Jiawei, Jared | 5743 | Mechanical | 2025-03-27 | Elevating Studio |
| Choy Kong Yan | 3391 | Civil | 1998-04-21 | Building and Construction Authority |
| Christian Suryono Sanjaya | 4859 | Civil | 2017-03-23 | Mott MacDonald Singapore Pte Limited |
| Christopher Angkodjojo | 4815 | Electrical | 2016-09-22 | Environmental Development Consultants (Pte.) Ltd. |
| Christopher Lee@ Kyaw Hein | 4552 | Mechanical | 2013-10-17 | CMA Engineering Singapore Pte Ltd |
| Chriswini Tanaka | 5876 | Civil | 2026-04-23 | Arup Singapore Private Limited |
| Chu Chiang Yong | 2723 | Civil | 1991-10-15 | ZPT Engineering Services |
| Chu Jyh Jeng | 4711 | Civil | 2015-08-18 | Jstruct Consultants Pte. Ltd. |
| Chu Jyh You | 5307 | Civil | 2020-01-16 | JTC Corporation |
| Chu Pei Nyuk | 5438 | Civil | 2022-01-27 | Urban Redevelopment Authority |
| Chu Wai Tuck | 2688 | Civil | 1991-06-19 | - |
| Chu Yat Sun | 2458 | Civil | 1989-03-22 | Chong & Lee Consulting Engineers LLP |