Our Members



Thiess Group companies partner with clients and communities across geographies, commodities and cultures to deliver bespoke and sustainable solutions.

The Thiess Group consists of Thiess (including Thiess Rehabilitation), MACA, Fleetco and RTL. They operate in the mining, infrastructure and resources sectors across Australia, Asia and the Americas with more than 15,000 employees.

Through their companies, they provide clients with specialist services that leverage 90 years of engineering experience and innovation. Their capabilities extend across the mine life cycle from engineering, asset management, extraction and haulage, civil and infrastructure, crushing and processing, and rehabilitation.

Thiess is uniquely placed to make a significant contribution to responsible, sustainable mining and a low-carbon future by working with their clients, suppliers and the industry to support the global energy transition.

They recognise that ESG sets the minimum operating standard for industry leaders and is fundamental to success today and into the future.

Their approach to sustainability is guided by these three simple ESG commitments – minimised environmental footprint; enhanced social value; and transparent, trusted governance. Thiess’ ESG commitments are translated into action by being embedded in their targets, business plans and decision-making.