| Inhouse Employer | South | In-House | OE | SS | Ang Mo Kio |
| Ademco Security Pte Ltd | Island Wide | - | OE | SS | Ang Mo Kio |
| Pan Pacific Singapore | South | In-House | Security Mgt | SS | Ang Mo Kio |
| Premier Security Co-operative Ltd | North | School | SSS | SSS | Ang Mo Kio |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Ang Mo Kio |
| Soverus Pte Ltd | Central | Industrial / Factory | SS | SSS | Ang Mo Kio |
| Elid Technology International Pte Ltd | Central | Condominium | SSO | SSS | Ang Mo Kio |
| Ademco Security Pte Ltd | North | Industrial / Factory | SS | SO | Ang Mo Kio |
| Soverus Pte Ltd | Central | Industrial / Factory | SS | CSO | Ang Mo Kio |
| Force-One Security | North | Data Centre | SS | CSO | Ang Mo Kio |
| Soverus Pte Ltd | Central | Industrial / Factory | SS | CSO | Ang Mo Kio |
| Trek Investigations & Security Management Services Pte Ltd | Central | Commercial | SO | CSO | Ang Mo Kio |
| AGS Integration Pte. Ltd. | Central | Commercial | SO | CSO | Ang Mo Kio |
| Soverus Pte Ltd | Central | Industrial / Factory | SS | CSO | Ang Mo Kio |
| Excellent Security & Safety Pte Ltd | Central | Industrial / Factory | SSO | SSO | Ang Mo Kio |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Ang Mo Kio |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Ang Mo Kio |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Ang Mo Kio |
| Inhouse Employer | North | Industrial / Factory | SSO | SO | Ang Mo Kio |
| Force-One Security | North | Data Centre | OE | CSO | Ang Mo Kio |
| Force-One Security | North | Data Centre | SS | CSO | Ang Mo Kio |
| Metropolis Security Systems Pte Ltd | Central | Condominium | SSS | CSO | Ang Mo Kio |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Danmax Security Management Pte Ltd | East | - | OE | CSO | Bedok |
