| Oneberry Technologies Pte Ltd | East | School | SSS | SSS | Ang Mo Kio |
| Force-One Security | North | Data Centre | SS | SSS | Ang Mo Kio |
| SATS Ltd | Island Wide | - | OM | SSS | Ang Mo Kio |
| Ademco Security Pte Ltd | Island Wide | - | SSO | SS | Ang Mo Kio |
| PICO Guards Pte Ltd | North | Data Centre | SS | SS | Ang Mo Kio |
| Prosec Services Pte Ltd | East | Data Centre | SSS | SSS | Ang Mo Kio |
| Premier Security Co-operative Ltd | Central | Data Centre | SO | SSS | Ang Mo Kio |
| G4S Secure Solutions (Singapore) Pte Ltd | North | School | SO | SSO | Ang Mo Kio |
| Excellent Security & Safety Pte Ltd | North | Data Centre | SO | SSO | Ang Mo Kio |
| Inhouse Employer | Island Wide | Construction | OM | SS | Ang Mo Kio |
| Peregrine Security Pte. Ltd. | South | Office Building | SS | SSS | Ang Mo Kio |
| PICO Guards Pte Ltd | North | Data Centre | SO | SSO | Ang Mo Kio |
| PICO Guards Pte Ltd | North | Data Centre | SSO | SSO | Ang Mo Kio |
| ProtectPlus Pte Ltd | Island Wide | - | OE | SS | Ang Mo Kio |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SSS | SS | Ang Mo Kio |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SS | Ang Mo Kio |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Ang Mo Kio |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SS | Ang Mo Kio |
| Force-One Security | Central | Commercial | SO | SS | Ang Mo Kio |
| William Secure Solutions Pte Ltd | Central | Condominium | SS | SS | Ang Mo Kio |
| A+ Officers Security Pte Ltd | Island Wide | Construction | SO | SS | Ang Mo Kio |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Ang Mo Kio |
| PICO Guards Pte Ltd | South | - | SSS | SS | Ang Mo Kio |
| Reachfield Security & Safety Management Pte Ltd | North | School | SSS | SS | Ang Mo Kio |
| Certis Group | South | Healthcare | SS | SS | Ang Mo Kio |
