| Vendor Company | Contact | |
|---|---|---|
| iSJC ScienTech Pte Ltd / Scott Vickers Pte Ltd | Joseph.cruz@isjcscientech.com@/scottvickers.com.sg | 87665923/96307853 |
| Oxen System & Trading / OST Technologies Pte Ltd | ang@oxen.com.sg | 96171383 |
| Absolute Instrument Systems Pte Ltd | sales@aisys.com.sg | 62968012 |
| Hi Con (S) Pte Ltd | james.chen@hicon.com.sg | 68623126 |
| Envprotech Pte. Ltd. | sweechow_ng@singnet.com.sg | 96272500 |
Top 5 CCTV vendors ranked by system uptime