| Artyzen Singapore | Central | Hotel | SS | SS | Farrer Park |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SS | Punggol |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Securus Pte Ltd | Island Wide | Commercial | SO | SO | Tampines |
| Reachfield Security & Safety Management Pte Ltd | Central | Mix-Development | SO | SSO | Sengkang |
| Star Security Services | Island Wide | - | Security Mgt | SS | Pioneer |
| Oneberry Technologies Pte Ltd | East | School | SSS | SSS | Tuas West Road |
| Elid Technology International Pte Ltd | West | Condominium | SO | SO | Choa Chu Kang |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SSS | Dover |
| Inhouse Employer | Central | Hotel | SO | SSO | Jurong East |
| Premier Security Co-operative Ltd | South | Commercial | SO | SO | Bukit Batok |
| Crowne Plaza Changi Airport | East | In-House | OE | SSO | Simei |
| Pan Pacific Singapore | South | In-House | Security Mgt | Nil | Yishun |
| Legion Protection Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Security & Risk Solutions Pte. Ltd. | East | Office Building | SS | SS | Hougang |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SSS | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| TwinRock Global | Central | - | SO | SSO | Bukit Batok |
| AETOS Holdings Pte Ltd | West | - | SO | Nil | Ubi |
| SATS Ltd | East | - | OE | SSO | Simei |
| Star Security Services | Island Wide | - | OE | SS | Choa Chu Kang |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Marsiling |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SSS | Sengkang |
| Securus Pte Ltd | Island Wide | - | OM | Nil | Ang Mo Kio |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SS | SO | Tampines |
