| Inhouse Employer at Changi | East | Commercial | OE | SSO | Buangkok |
| Metropolis Security Systems Pte Ltd | North | - | SO | SSO | Sembawang |
| M Social Singapore | Central | Hotel | OE | SS | Yishun |
| Securus Pte Ltd | Island Wide | Commercial | OE | SS | Admiralty |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | CSO | Toa Payoh |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SS | - |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Pioneer |
| Premier Security Co-operative Ltd | South | Commercial | SO | Nil | Bukit Batok |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SS | Simei |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SS | Bukit Panjang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Ang Mo Kio |
| Ademco Security Pte Ltd | East | Industrial / Factory | SS | SS | Tampines |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SO | Woodlands |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Yishun |
| Force-One Security | Central | Commercial | SO | SO | Yishun |
| Soverus Pte Ltd | Central | Data Centre | SSS | CSO | Clementi |
| SATS Ltd | East | - | OE | SO | Woodlands |
| SMS Investigation & Security Pte Ltd | Central | - | OM | CSO | Marsiling |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| SATS Ltd | East | - | OE | CSO | Marsiling |
| PICO Guards Pte Ltd | North | Industrial / Factory | SO | SO | Bras Basah |
| Inhouse Employer | East | In-House | SO | SO | - |
| Security Masters Pte Ltd | Central | Data Centre | SS | SSS | Yishun |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SS | Admiralty |
