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| Parent | Keolis Downer |
|---|---|
| Founded | April 2000 |
| Headquarters | Mount Barker |
| Service area | Adelaide |
| Service type | Bus services |
| Alliance | LinkSA |
| Depots | 2 |
| Fleet | 85 (February 2025) |
| Website | www |
SouthLink is an Australian bus service operator inAdelaide. It operates services as part of theAdelaide Metro network under contract to theDepartment for Infrastructure & Transport. It is a subsidiary ofKeolis Downer.

In April 2000,Australian Transit Enterprises (ATE) won a contract to operate itsAdelaide Metro Outer South services, with 82 buses.[1][2][3][4] The service was named SouthLink. ATE also formed a joint venture withTransAdelaide to operateAdelaide Hills area services under theTransitplus name.
In April 2005, SouthLink began operating the Outer North Adelaide Metro contract that had previously been run bySerco.[5][6][7][8] In 2010, following the dissolution of its Transitplus partner TransAdelaide, ATE took over full operation of the Adelaide Hills area services and also operated them as SouthLink.[9][10]
In July 2011, SouthLink began an eight-year contract for the Outer North, Outer South and Hills areas, with an optional four-year extension exercisable based upon performance criteria.[11][12]
In March 2015, SouthLink was included in the purchase of ATE byKeolis Downer.[13][14]
In July 2020, SouthLink's Outer North and Outer Southbus contracts were taken over byTorrens Transit andBusways respectively, while retaining its Hills contract.[15][16][17]
As of February 2025, the fleet consists of 85 buses.[18]
SouthLink operates two depots, one atAldgate and another atMount Barker.[19]
Media related toSouthLink at Wikimedia Commons