| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SS | Bukit Batok |
| Acestes Pte Ltd | Central | - | Security Mgt | SS | Bukit Batok |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SS | Bukit Batok |
| Legion Protection Pte Ltd | Island Wide | - | OE | SS | Bukit Batok |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Bukit Batok |
| TwinRock Global | Central | - | Security Mgt | SS | Bukit Batok |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Bukit Batok |
| Acestes Pte Ltd | Island Wide | - | OM | SS | Bukit Batok |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SS | Bukit Batok |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SS | Bukit Batok |
| Aedge Services Pte Ltd | Island Wide | - | OM | SS | Bukit Batok |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SS | Bukit Batok |
| Inhouse Employer at Changi | East | Commercial | OE | SSO | Buangkok |
| Inhouse Employer at Changi | East | Commercial | OE | SSO | Buangkok |
| Reachfield Security & Safety Management Pte Ltd | Island IWde | - | SS | SS | Buangkok |
| GATES PCM Integrated Services Pte Ltd | Island IWde | - | OE | SS | Buangkok |
| Excellent Security & Safety Pte Ltd | North | Data Centre | SO | SS | Buangkok |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | Commercial | SS | SS | Buangkok |
| AETOS Holdings Pte Ltd | West | - | SO | SS | Buangkok |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | Nil | Buangkok |
| Force-One Security | North | Data Centre | OE | SS | Buangkok |
| Crowne Plaza Changi Airport | East | In-House | OE | SSO | Buangkok |
| Primesafe Security & Investigation Pte Ltd | South | Commercial | SS | SO | Bright Hill |
| Soverus Pte Ltd | Central | Industrial / Factory | SS | SO | Bright Hill |
| Focus Security Services Pte Ltd | West | Condominium | SS | SO | Bright Hill |
