GLS Monitoring Head Office
GLS Monitoring Regional Locations
| Location | Address | Postal Address |
| Perth | 19 Brennan Way, Belmont WA 6104 (HEAD OFFICE) | P.O. Box 746, Belmont WA 6984 |
| Perth | Unit 2, 34 Milrose Drive, Malaga WA 6090 | |
| Karratha | Unit 12, 5 Sharpe Avenue, Karratha WA 6714 | P.O. Box 1839, Karratha WA 6714 |
| Port Hedland | 14 Carlindie Way, Wedgefield WA 6721 | P.O. Box 3230, South Hedland WA 6722 |
| Darwin | 26/119 Reichardt Road, Winnellie NT 0821 | GPO Box 152, Darwin NT 0800 |
| Brisbane | Unit 25, 1015 Nudgee Road, Banyo QLD 4014 | |
| Sydney | Unit 8, 3 Gibbs Road, Chatswood NSW 2067 | |
| Sydney | Unit 9, 31-33 Chaplin Drive, Lane Cove West NSW 2066 | |
| Melbourne | Unit 2, 85 Salmon Street, Port Melbourne VIC 3207 | |
| Papua New Guinea | Section 140, Lot 2 & 3, Scratchley Road, Badili, Port Moresby NCD Papua New Guinea | P.O. Box 1823 Waterfront, Konedobu, NCD 125, Papua New Guinea |