Mark J. Davies

Brierty Ltd. engages in the provision of civil construction and mining services to government and private industries. The company was founded by Alan Robert Brierty and Kylie Ann Brierty in 1981 and is headquartered in South Perth, Australia.

John Holland Pty Ltd. provides construction and engineering services. It offers contracting and services capabilities, from tunneling, building and civil construction solutions in the infrastructure sector to the delivery of water and environment, energy, minerals, and industrial projects in the energy and resources sector. The firm also provides services to the transport sector and specializes in railway construction, operations and maintenance, aviation services, and ports infrastructure and maintenance. The company was founded in 1949 and is headquartered in Melbourne, Australia.