| Kingston Property Maintenance Services Pte Ltd | West | Condominium | SO | SSO | Bukit Batok |
| Metropolis Security Systems Pte Ltd | Central | Condominium | SS | SS | Jurong East |
| Elitez Security Pte Ltd | Central | Condominium | SS | SS | Woodlands |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SS | SS | Hougang |
| William Secure Solutions Pte Ltd | South | Condominium | SS | SS | Hougang |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SS | SO | Tampines |
| Storm Protection Pte Ltd | East | Condominium | SS | SO | Tampines |
| Danmax Security Management Pte Ltd | South | Condominium | SO | SO | - |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SS | SO | Tampines |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SO | SO | Tampines |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SS | SO | Tampines |
| Aigle Security Pte Ltd | East | Condominium | SO | SO | Tampines |
| William Secure Solutions Pte Ltd | East | Condominium | SS | SO | Tampines |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SS | SS | Pioneer |
| Jasa Investigation & Security Services Pte Ltd | East | Condominium | SS | SS | Woodlands |
| Danmax Security Management Pte Ltd | Central | Condominium | SS | SS | Woodlands |
| IGC Security Services Pte Ltd | Central | Condominium | SS | SS | Woodlands |
| SMS Investigation & Security Pte Ltd | South | Condominium | SS | SS | Woodlands |
| Jasa Investigation & Security Services Pte Ltd | East | Condominium | SO | SO | Tampines |
| Danmax Security Management Pte Ltd | East | Condominium | SS | SO | Tampines |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SSO | SSS | Pasir Ris |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SS | SSS | Pasir Ris |
| Kingston Property Maintenance Services Pte Ltd | East | Condominium | SO | SO | Tampines |
| Union Security Services Pte. Ltd. | East | Condominium | SSO | SO | Tampines |
| Union Security Services Pte. Ltd. | East | Condominium | SO | SO | Tampines |
