| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | SS | Bukit Batok |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | CSO | Marsiling |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | SSS | Yishun |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Pasir Ris |
| Inhouse Employer | Island Wide | Construction | OM | CSO | Boon Lay |
| Force-One Security | North | Data Centre | OE | SS | Yishun |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Bedok |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Peregrine Security Pte. Ltd. | North | Healthcare | SSO | SS | Yishun |
| Force-One Security | North | Data Centre | SS | SS | Woodlands South |
| Star Security Services | Island Wide | - | Security Mgt | SSO | Kaki Bukit |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SO | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SSO | SO | Bukit Batok |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Simei |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| GATES PCM Integrated Services Pte Ltd | Central | School | SO | SO | Punggol |
| Premier Security Co-operative Ltd | East | In-House | Office Team | SS | Kaki Bukit |
| Chang & Chang Security Management Pte. Ltd. | West | Condominium | SO | SO | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | SO | Bukit Batok |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Sengkang |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | SO | Chinatown |
| Crowne Plaza Changi Airport | East | In-House | OM | CSO | Toa Payoh |
| Premier Security Co-operative Ltd | Island Wide | - | SSO | SSO | Bedok North |
| ONE°15 Marina Sentosa Cove, Singapore | South | Country Club | SO | SO | Bedok |
