| Crowne Plaza Changi Airport | East | Hotel | SO | SO | Tampines |
| SMS Security | Central | Retail / Mall | SO | SO | Toa Payoh |
| William Secure Solutions Pte Ltd | East | Healthcare | SO | SO | Hougang |
| Jasa Investigation & Security Services Pte Ltd | East | Industrial / Factory | SO | SO | Hougang |
| TwinRock Global | East | Condominium | SO | SO | Hougang |
| Hawkeye Security Solutions Pte Ltd | North | Commercial | SO | SO | Hougang |
| GoMobile Security Solutions Pte Ltd | North | Condominium | SO | SO | Hougang |
| GATES PCM Integrated Services Pte Ltd | East | Condominium | SO | SO | Hougang |
| Aspectus Consultancy Pte Ltd | Central | Condominium | SO | SO | Hougang |
| Union Security Services Pte. Ltd. | North | Commercial | SO | SO | Hougang |
| G4S Secure Solutions (Singapore) Pte Ltd | North | School | SO | SSO | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | North | School | SO | SSO | Sengkang |
| Metropolis Security Systems Pte Ltd | North | - | SO | SSO | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SO | SSO | Sengkang |
| Aspectus Consultancy Pte Ltd | Central | Mix-Development | SO | SSO | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | Central | Mix-Development | SO | SSO | Sengkang |
| Peregrine Security Pte. Ltd. | North | Healthcare | SO | SO | Ang Mo Kio |
| G4S Secure Solutions (Singapore) Pte Ltd | North | School | SO | SO | Ang Mo Kio |
| Union Security Services Pte. Ltd. | North | Commercial | SO | SO | Ang Mo Kio |
| Soverus Pte Ltd | North | School | SO | SO | Ang Mo Kio |
| Union Security Services Pte. Ltd. | North | Commercial | SO | SO | Ang Mo Kio |
| Resorts World Sentosa | South | Commercial | SO | SO | Bukit Batok |
| Certis Group | Central | Commercial | SO | SO | Bukit Batok |
| Resorts World Sentosa | South | Commercial | SO | SO | Sengkang |
| Bulls-Eye Security Services Pte Ltd | South | Gov Building | SO | SO | Hougang |
