| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | SSO | Simei |
| SATS Ltd | Island Wide | - | OM | SSS | Pioneer |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Pioneer |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Pioneer |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSO | Simei |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SS | Punggol |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SO | Woodlands |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Pioneer |
| SATS Ltd | Island Wide | - | OM | SSS | Pioneer |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SSS | Pioneer |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSS | Jurong East |
| Ademco Security Pte Ltd | Island Wide | - | OE | SSS | Jurong East |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Soverus Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Pioneer |
| Acestes Pte Ltd | Island Wide | - | Security Mgt | SSS | Punggol |
