| Dragnet Smartech Security Pte Ltd | Island Wide | Commercial | SO | SSO | Tampines |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Ang Mo Kio |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | SS | Woodlands |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| Force-One Security | North | Data Centre | OE | SSS | Woodlands |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Inhouse Employer | East | Country Club | SO | SO | Bedok |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Sengkang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SO | Tampines |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Clementi |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SSS | Bukit Batok |
| Inhouse Employer | West | In-House | OM | CSO | Marsiling |
| Force-One Security | North | Data Centre | SS | SS | Woodlands South |
| Ademco Security Pte Ltd | Island Wide | - | OM | SSS | Bukit Panjang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Republic of Singapore Yacht Club | West | In-House | SO | CSO | - |
| Trek Investigations & Security Management Services Pte Ltd | Central | Condominium | SO | SSO | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SSS | Woodlands |
| Inhouse Employer | Central | School | SO | SSO | Bukit Gombak |
| Premier Security Co-operative Ltd | Central | Commercial | SS | SS | Toa Payoh |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Punggol |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | SSS | Yishun |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | Nil | Buangkok |
| Inhouse Employer | Central | Hotel | SO | SSO | Woodlands |
