John Holland CPB Ghella (JHCPBG) has established an experienced team to deliver the Tunnel and Station Excavation Works for the Sydney Metro City & Southwest project. Both John Holland and CPB Contractors worked together on Sydney Metro Northwest, successfully completing the 15-kilometre long twin tunnels and station civil works seven months early.

John Holland

John Holland is a world-renowned tunnelling and rail contractor, recognised with the 2012 International Tunnelling Contractor of the Year Award.

The company has delivered major tunnelling projects such as Sydney Metro Northwest, Eastlink and AirportlinkM7. It is currently working on significant road and rail infrastructure projects including WestConnex in Sydney and the Metro Tunnel in Melbourne.

John Holland has also been involved in tunnelling projects in South East Asia to augment transport networks in Hong Kong and Singapore.


CPB Contractors

CPB Contractors is the construction company of CIMIC Group, combining the construction track record and expertise formerly delivered by Leighton Contractors and Thiess.

CPB Contractors is Australasias largest tunnelling contractor, working across the roads, rail, water, power and utilities sectors.

In New South Wales, CPB Contractors has delivered world-class infrastructure including Sydney Metro Northwest, Sydney Harbour Tunnel and the Lane Cove Tunnel. Current tunnelling projects include the WestConnex M4 East and New M5.



Founded in 1894, Ghella is a leading company in the construction of major infrastructure projects worldwide.

With its unique skills and experience in underground works, Ghella is involved in the construction of many infrastructure projects such as subways, railways, motorways and major roads, and significant water and hydraulic works.

Ghella has completed complex engineering works that have contributed to its dynamic and steady growth and have converted the company into a leader in mechanised excavation and tunnelling projects worldwide.


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