| Fervour Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| SATS Ltd | Island Wide | - | OM | SSS | Yishun |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | SS | Admiralty |
| PICO Guards Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| SATS Ltd | Island Wide | - | Inves | CSO | Choa Chu Kang |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SO | SSO | Simei |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Choa Chu Kang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SSS | Woodlands |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SO | Tampines |
| Trek Investigations & Security Management Services Pte Ltd | Central | Commercial | SO | SO | Punggol |
| Security Masters Pte Ltd | Central | Data Centre | SS | SS | Hougang |
| Hawkeye Security Solutions Pte Ltd | Central | Condominium | SSO | SSO | Bukit Batok |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| SATS Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| Young Women's Christian Association of Singapore | Central | In-House | SS | SSS | Marsiling |
| Elitez Security Pte Ltd | Central | Commercial | SSS | SSS | Tanjong Pagar |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SS | Admiralty |
| M Hotel Singapore City Centre | Central | Hotel | SSO | SS | Aljunied |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Yishun |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Bishan |
| Orchid Hotel Private Limited | Central | In-House | OM | SO | Woodlands |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSS | Potong Pasir |
