Telcos

Telstra
Optus
Reach
Telecom NZ
Broadcast Australia
BCL NZ

Govt. Departments/Bodies

Department of Defence
Dept. of Defence, New Zealand
Department of Foreign Affairs and Trade
Austrade 
Australian Federal Police
C.S.I.R.O
Major Universities of Australia
Australian Antarctic Division
Air Services Australia
Bureau of Meteorology

Satellite Operators/Content Providers/ISP

New Skies Satellites
Intelsat
Pacific IP Services New Caledonia
Pacific Teleports- Australia
Globecast
ViaSat
Shiron
Voice International
NewSat

System Integrators

Telstra (NDC)
NEC Australia
Clough Engineering
Australian Satellite Services
Comsyst-United Group 
LSE Technology
Hitron PNG
Consultel IT&T
Rawsat
ADI Limited
Bytecan
BSA

Auspace
Gigasat

Corporations

Codan
Phillips Petroleum
Esso

Pacific Island Telcos

Telecom Fiji

FinTel
Telecom PNG
University of South Pacific- Fiji
Telecom Tonga
SamoaTel
Teletok
Telecom Vanuatu
Marshall Island Telecom
Palau National Comms