| York Hotel (Private) Limited | Central | In-House | OM | Nil | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | Nil | Yishun |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | Nil | Yishun |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Yishun |
| Jasa Investigation & Security Services Pte Ltd | East | Industrial / Factory | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | West | School | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | West | School | SO | SO | Yishun |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Yishun |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | Nil | Yishun |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SO | Yishun |
| Premier Security Co-operative Ltd | South | Commercial | SO | SO | Yishun |
| Certis Group | Island Wide | Commercial | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | North | - | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Yishun |
| Premier Security Co-operative Ltd | North | Commercial | SO | SO | Yishun |
| AETOS Holdings Pte Ltd | West | - | SO | SO | Yishun |
| Certis Group | East | Gov Building | SO | SO | Yishun |
| Premier Security Co-operative Ltd | South | Commercial | SO | SO | Yishun |
| Force-One Security | Central | Commercial | SO | SO | Yishun |
| Elitez Security Pte Ltd | West | Commercial | SO | SS | Yishun |
| Elid Technology International Pte Ltd | North | Condominium | SO | SS | Yishun |
| Inhouse Employer | North | In-House | SO | SS | Yishun |
| Certis Group | Island Wide | Gov Building | APO | Nil | Yishun |
| Inhouse Employer | West | In-House | OM | SO | Yishun |
