| Orchid Hotel Private Limited | Central | In-House | OM | SS | Pioneer |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SSS | Tampines |
| Inhouse Employer | North | In-House | SO | SO | Yishun |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Bishan |
| Crowne Plaza Changi Airport | East | In-House | OE | SSO | Sengkang |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Toa Payoh |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Toa Payoh |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Yishun |
| Inhouse Employer | Central | In-House | SSS | SSS | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Queenstown |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SSS | Woodlands |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Toa Payoh |
| Inhouse Employer | Central | In-House | SSS | SSS | Yishun |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Yishun |
| Premier Security Co-operative Ltd | East | In-House | Office Team | SSO | Simei |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Queenstown |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SO | Bukit Batok |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Sengkang |
| Soverus Pte Ltd | South | In-House | SS | SS | Sengkang |
| York Hotel (Private) Limited | Central | In-House | SS | SS | Sengkang |
| Ranger Investigation & Security Services Pte Ltd | East | In-House | SSO | SO | Bukit Batok |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OE | SO | Bukit Batok |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Tampines |
