| SMS Security | East | Condominium | SO | SO | Bedok |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Inhouse Employer | South | School | SO | SSO | Bukit Batok |
| Serangoon Gardens Country Club | Central | Country Club | SO | SO | Bedok |
| Pan Pacific Singapore | South | In-House | Security Mgt | SSS | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SSO | - |
| Securus Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | SSS | Yishun |
| Certis Group | Island Wide | - | SSO | SS | Choa Chu Kang |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Yishun |
| Inhouse Employer | West | In-House | OM | SS | Choa Chu Kang |
| Inhouse Employer | East | Country Club | SO | SO | Tampines |
| Serangoon Gardens Country Club | Central | Country Club | SO | SO | - |
| Inhouse Employer | West | In-House | OM | CSO | Toa Payoh |
| A-SAT Pte Ltd | Island Wide | - | SSO | CSO | Bukit Panjang |
| SATS Ltd | Island Wide | - | OM | SSS | Tampines |
| Securus Pte Ltd | Island Wide | - | OM | Nil | Dover |
| Securus Pte Ltd | Island Wide | - | OE | SSO | Choa Chu Kang |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| Iconic Locations S Pte Ltd | Central | In-House | SO | SO | Pasir Ris |
| Horus I (Private Limited) | South | Retail | SO | SO | Pasir Ris |
| Inhouse Employer | Island Wide | Construction | OM | SS | Tampines |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Punggol |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SS | SS | Yishun |
| Prosegur Singapore Pte Ltd | Island Wide | - | OE | SS | Sengkang |
