| Union Security Services Pte. Ltd. | East | Condominium | SSO | SO | Tampines |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SSS | Jurong East |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| Bulls-Eye Security Services Pte Ltd | Island Wide | - | SSO | SSO | Woodlands |
| AETOS Holdings Pte Ltd | West | - | SO | SO | Sengkang |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SSS | Bukit Batok |
| Artyzen Singapore | Central | Hotel | SS | SS | Marsiling |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Sembawang |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SSS | Sengkang |
| Acestes Pte Ltd | Island Wide | - | Security Mgt | SSO | Marsiling |
| SPH Retail Property Management Services Pte Ltd | Central | In-House | SO | SS | Khatib |
| Crowne Plaza Changi Airport | East | In-House | OM | SS | Hougang |
| A-SAT Pte Ltd | North | Commercial | SSO | SSO | Yishun |
| TwinRock Global | Central | - | Security Mgt | SSS | Bishan |
| Force-One Security | North | Data Centre | SS | CSO | Ang Mo Kio |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Pasir Ris |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| M Social Singapore | Central | Hotel | Sec Tech / Eng | SO | Bukit Batok |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | SSO | Marsiling |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Hougang |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SSS | Woodlands |
| Securus Pte Ltd | East | Commercial | SS | SS | Woodlands |
| Inhouse Employer | Central | Country Club | OM | CSO | Bukit Batok |
