Laurie William Voyer

CPB Contractors Pty Ltd. provides construction contracting services. It also offers infrastructure projects including roads, railways, tunnels, airports, buildings, social infrastructure, water, energy and resources. The company was founded in 1949 and is headquartered in North Sydney, Australia.

The Leighton Group, Inc. provides geo-technical and environmental services. The firm serves commercial, industrial, education, public buildings and transportation sectors. The company was founded in 1979 and is headquartered at Irvine, CA.

Habtoor Leighton Group offers engineering and infrastructure services that include design, development, construction, and operation and maintenance; with a strong emphasis on transport-related projects. It provides hotel developments, commercial and retail developments, residential developments, hospitals and healthcare facilities, education and cultural developments, industrial facilities, sports facilities and government buildings. The company was founded in 2007 and is headquartered in Dubai, the United Arab Emirates.

WDS Ltd. provides specialist development, design, engineering, construction, fabrication, and maintenance related services to the energy and mining sectors. The company was founded in 1952 and is headquartered in Fortitude Valley, Australia.

CIMIC Group Ltd. is engaged in the operations of infrastructure, resources, and property markets. It operates through the following segments: Construction, Services, and Corporate & Investments. The company was founded by Stanley Ellis Leighton in 1949 and is headquartered in North Sydney, Australia.