| Aspectus Consultancy Pte Ltd | East | School | SO | SO | Choa Chu Kang |
| Soverus Pte Ltd | West | Industrial / Factory | SO | SSS | Jurong East |
| Pedro Investigations & Security Services Pte. Ltd. | Central | Industrial / Factory | SO | SS | Sengkang |
| Securus Pte Ltd | East | Commercial | SO | SO | Sengkang |
| Force-One Security | Central | Commercial | SO | SSO | Marsiling |
| Excellent Security & Safety Pte Ltd | North | Data Centre | SO | SS | Buangkok |
| Aigle Security Pte Ltd | Central | Condominium | SO | SSO | Woodlands |
| Aigle Security Pte Ltd | Central | Condominium | SO | SSO | Woodlands |
| Trek Investigations & Security Management Services Pte Ltd | Central | Condominium | SO | SSO | Woodlands |
| William Secure Solutions Pte Ltd | West | Condominium | SO | SSO | Woodlands |
| Inhouse Employer | East | School | SO | SSS | Marsiling |
| Inhouse Employer | Central | School | SO | SSS | Marsiling |
| Regal Security & Fire Management Services Pte Ltd | West | Industrial / Factory | SO | SO | Choa Chu Kang |
| Regal Security & Fire Management Services Pte Ltd | West | Industrial / Factory | SO | SO | Choa Chu Kang |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Elitez Security Pte Ltd | West | Industrial / Factory | SO | SO | Choa Chu Kang |
| Chang & Chang Security Management Pte. Ltd. | West | Condominium | SO | SO | Choa Chu Kang |
| Ademco Security Pte Ltd | West | Mix-Development | SO | SO | Choa Chu Kang |
| Chang & Chang Security Management Pte. Ltd. | West | Condominium | SO | SO | Choa Chu Kang |
| Metropolis Security Systems Pte Ltd | West | Industrial / Factory | SO | SO | Choa Chu Kang |
| Eagle I Security Services Pte Ltd | East | - | SO | CSO | Bedok |
| Metropolis Security Systems Pte Ltd | North | Mix-Development | SO | SO | Yishun |
| Hawkeye Security Solutions Pte Ltd | North | Commercial | SO | SO | Yishun |
| Metropolis Security Systems Pte Ltd | North | Condominium | SO | SO | Yishun |
| Hawkeye Security Solutions Pte Ltd | North | Commercial | SO | SSO | Yishun |
