- Wormald 14 Harrald St, Mount Gambier, SA
- Wilson Security & Locksmith Services 248 Commercial St West, Mount Gambier, SA
- Blue Lake Security 3PO Box 921, Mount Gambier, SA
- Green Triangle Fire Protection 49 Cedar St, Mount Gambier, SA
- South East Fire Extinguisher Services 5337 Commercial St West, Mount Gambier, SA
- Southern Cross Fire Protection 6Millicent Rd, Mount Gambier, SA