Comfort Del Gro Cabcharge - Hillsbus

Hillsbus, named for the Sydney's Hills District came as the depots of Northmead, Seven Hills and Dural were rebranded from Westbus and Glenorie Bus (Dural) to Hillsbus in December 2004. It is the sole contracted operator of Region 4 in Sydney's metropolitan bus network. Hillsbus operates services from depots in Northmead, Seven Hills, Dural and Foundry Road (Seven Hills).

Hillsbus operates the following services:

• 60 series metrobus routes
• 60 series T-Way routes in Sydney's north-western suburbs.
• 600 series bus routes in Sydney's north-western suburbs, including express services along the M2 Hills Motorway to Macquarie Park and Railway Square, Sydney
• 700 series bus routes in Sydney's western suburbs