| SMS Investigation & Security Pte Ltd | Central | Condominium | SS | SSS | Jurong East |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Dover |
| Inhouse Employer | Central | In-House | SS | SSS | Redhill |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Redhill |
| Artyzen Singapore | Central | Hotel | SS | SSS | Redhill |
| TwinRock Global | Central | - | OE | SSS | Dover |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SS | SS | Choa Chu Kang |
| GoMobile Security Solutions Pte Ltd | Central | Condominium | SS | SS | Choa Chu Kang |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | Commercial | SSO | SS | Choa Chu Kang |
| Dorsett Singapore | Central | Hotel | SSO | SS | HarbourFront |
| Inhouse Employer | Central | In-House | SS | SS | HarbourFront |
| York Hotel (Private) Limited | Central | In-House | SS | SS | HarbourFront |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Ang Mo Kio |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | HarbourFront |
| Dorsett Singapore | Central | Hotel | SSO | SS | HarbourFront |
| York Hotel (Private) Limited | Central | In-House | SS | SS | HarbourFront |
| Artyzen Singapore | Central | Hotel | SS | SS | HarbourFront |
| Inhouse Employer | Central | Hotel | SS | SS | HarbourFront |
| Inhouse Employer | Central | Hotel | SS | SS | HarbourFront |
| Inhouse Employer | Central | In-House | SS | SS | HarbourFront |
| Grand Copthorne Waterfront Hotel | Central | In-House | SSO | SS | HarbourFront |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Marsiling |
| TwinRock Global | Central | - | Security Mgt | CSO | Marsiling |
| Sands Global Pte Ltd | Central | Condominium | SS | SS | Choa Chu Kang |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Choa Chu Kang |
