National Jet Systems (NJS) was established in 1989 and started operations on 1 July 1990. It soon commenced scheduled operations on behalf of Australian Airlines, mainly to tourist destinations in northern Australia, operating a fleet of BAe 146 aircraft under the Airlink brand. After Australian Airlines was taken over by Qantas it continued these operations, and in 2005 commenced operating Boeing 717 aircraft, the operation being rebranded as QantasLink at the same time. The services on behalf of QantasLink are contracted until 2018.
Cobham Aviation Services has developed "turnkey" transportation systems, including airport management and reservations services, for major Australian infrastructure projects such as Santos's Cooper Basin gas fields at Moomba and Ballera in the heart of Australia, Chevron's Barrow Island operations into a Class "A" nature reserve with strict quarantine requirements, along with operations for Ok-Tedi gold and copper mine in Papua New Guinea.
Cobham Regional Services, also known as National Jet Express, or JetEx, conducts scheduled closed charter flights on its "regional network" and freight services on behalf of Australian air Express (AaE). JetEx operates three BAe 146 freighters on night freight services to and from curfew-restricted Sydney Airport, along with Bae146 and RJ100 aircraft in Perth and Adelaide on scheduled closed charter flights for bluechip minings clients. Surveillance Australia, or Special Missions business unit operates a civilian aerial surveillance program on behalf of the Border Protection Command.
A QantasLink-branded Cobham Boeing 717 at Canberra Airport, November 2013
Cobham's operations can be broken into four separate branches; it flies scheduled services on its own behalf, Scheduled operations on behalf of QantasLink and AaE. It also has an extensive closed charter operation in support of the mining industry.