| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Tampines |
| Brink's Singapore Pte Ltd | East | - | SO | Nil | Tampines |
| Focus Security Services Pte Ltd | Central | Retail | SSO | SSO | Tampines |
| Triple ‘S’ Protection Pte Ltd | North | Shipyard / Port | SO | SSO | Tampines |
| Force-One Security | Central | Commercial | SO | SSO | Tampines |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SSO | SSO | Tampines |
| AGS Integration Pte. Ltd. | Central | Commercial | SSO | SSO | Tampines |
| Metropolis Security Systems Pte Ltd | Central | Condominium | SSO | SSO | Tampines |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Tampines |
| Acestes Pte Ltd | Island Wide | - | Security Mgt | SSO | Tampines |
| Horus I (Private Limited) | Central | Retail | SO | SO | Tampines |
| Horus I (Private Limited) | Central | Retail | SO | SO | Tai Seng |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | SO | SO | Tai Seng |
| Inhouse Employer | Central | Hotel | SSO | SS | Simei |
| Security & Risk Solutions Pte. Ltd. | East | Office Building | SS | SS | Simei |
| SMS Security | East | Mix-Development | SSO | SS | Simei |
| Security & Risk Solutions Pte. Ltd. | East | Office Building | SS | SS | Simei |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | SS | Simei |
| Inhouse Employer | North | Industrial / Factory | SSO | SS | Simei |
| Premier Security Co-operative Ltd | East | In-House | Office Team | SSO | Simei |
| Premier Security Co-operative Ltd | Central | - | SS | SSO | Simei |
| G4S Secure Solutions (Singapore) Pte Ltd | West | Industrial / Factory | SS | SS | Simei |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SSO | Simei |
