Wikipedia
Exetel is an Australian ISP which provides ADSL, web hosting, VoIP, and other internet services to customers across Australia. Exetel's headquarters are based in offices in North Sydney and its switching centre is in a secure Data Centre facility in the Sydney CBD. Exetel has 110,000+ residential and business customers.
Exetel resells products from NBN Co, Telstra, Optus, Verizon Business, AAPT & BigAir. Many of the larger Australian ISPs have chosen to deploy their own infrastructure (including wireless) in order to provide faster and less expensive services than Telstra offers. Exetel does not deploy its own infrastructure outside of its own switching centres. Instead, it is a wholesale customer of Tier 1 wholesale telco providers who provide IP Transit, Intercapital Transmission and various Residential and Business Grade Access Network products that Exetel integrate and manage for its customers.
Exetel donates one third of the profit it makes to various, community based, endangered species protection and regeneration programs around Australia. Almost $450,000 was donated in 2009. Details on all of these programs can be found on the website.