| Hilton Garden Inn Singapore Serangoon | Central | In-House | SO | SSO | Woodlands |
| Jasa Investigation & Security Services Pte Ltd | East | Commercial | SO | SSS | Punggol |
| Regal Security & Fire Management Services Pte Ltd | East | Condominium | SO | SSS | Punggol |
| Jasa Investigation & Security Services Pte Ltd | East | Commercial | SO | SS | Pasir Ris |
| TwinRock Global | North | Dormitory | SO | SO | Yishun |
| Metropolis Security Systems Pte Ltd | North | Condominium | SO | SO | Yishun |
| Elid Technology International Pte Ltd | West | Condominium | SO | SO | Choa Chu Kang |
| Metropolis Security Systems Pte Ltd | East | Gov Building | SO | SO | Kaki Bukit |
| Prosegur Singapore Pte Ltd | East | Industrial / Factory | SO | SO | Kaki Bukit |
| Crowne Plaza Changi Airport | East | Hotel | SO | SO | Sengkang |
| SMS Security | East | Condominium | SO | SO | Kaki Bukit |
| Inhouse Employer | South | Hotel | SO | SO | Woodlands |
| Metropolis Security Systems Pte Ltd | East | Gov Building | SO | SO | Kaki Bukit |
| Metropolis Security Systems Pte Ltd | East | Gov Building | SO | SO | Kaki Bukit |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Condominium | SO | SO | Tampines East |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Certis Group | Island Wide | - | SO | SS | Admiralty |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines East |
| Elid Technology International Pte Ltd | West | Condominium | SO | SO | Choa Chu Kang |
| Certis Group | Central | Commercial | SO | CSO | Bedok |
| Republic of Singapore Yacht Club | West | In-House | SO | CSO | - |
| Octopus Distribution Networks Pte Ltd | East | In-House | SO | SO | Kaki Bukit |
| Prosegur Singapore Pte Ltd | East | Industrial / Factory | SO | SO | Kaki Bukit |
