Guide to CPB Contractors & Their Major Projects

CPB Contractors is the largest and most prominent Construction contracting company in Australia, with projects covering roads, rail, tunnelling, defence, building, resources infrastructure, and more.

CPB Contractors, an Australasian contracting company owned by the CIMIC Group, have operations spanning Australia, New Zealand, Asia, India and Papua New Guinea. CPB, formerly known as Leighton Contractors, represents CIMIC's core contracting business.

The tier 1 contractor and builder, while draped in history, came to fruition through the merger of two CIMIC businesses, Leighton Contractors and Thiess Construction (separate to Thiess), in January 2016. A recent highlight has been CPB's involvement in the mega $33.7 billion Sydney Metro project, which includes work on a 1km tunnel stretch under the Sydney Harbour and twin 15.5km railway tunnels running from Chatswood to Sydenham.

Additionally, CPB has undertaken contracts on prominent projects like Western Sydney Airport, Melbourne's Metro Tunnel, the $4.5b South Flank Mine, WestConnex New M5,  Brisbane Airport, Canberra Light Rail, Bruce Highway Upgrade, Gold Coast Light Rail, Melbourne Airport, Mackay Ring Road, and Gunyama Park, just to name a few.

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CPB Contractors in Australia

What does CPB Contractors stand for?

While not specifically an acronym, CPB Contractors was born in January 2016 following a merger between the CIMIC Group construction businesses of Thiess Construction and Leighton Contractors.

How many employees does CPB Contractors have?

There are approximately 23,000 employees working for CPB Contractors across Australia, New Zealand, Asia, India and Papua New Guinea.

Who owns CPB Contractors?

CPB Contractors is the Australasian construction company of the CIMIC Group. The CIMIC Group dates back to 1899 and is an engineering-led mining, construction, services and public/private partnerships organisation.

Who owns CIMIC?

The majority owner of the CIMIC Group is Hochtief Aktiengesellschaft (Hochtief), Germany’s largest construction company. It holds a 70% share of the CIMIC Group.

What companies does CIMIC own?

CIMIC owns a number of companies, including the following:
  • CPB Contractors, Leighton Asia and Broad (construction)
  • Thiess and Sedgman (mining)
  • UGL and Ventia (services)
  • Pacific Partnerships (public-private partnerships)
  • EIC Activities (consultancy)