Dahlhaus Environmental Geology Pty Ltd is a small, independent consulting company with a focus on the assessment of landscape processes and their influence on natural resource management, strategic planning, and geohazard risk assessment in south west Victoria.

The company specialises in salinity, regional groundwater studies, soil degradation and land rehabilitation, and often collaborates with other consultants in joint investigative projects.

Peter Dahlhaus, the company director, maintains academic and research links with the University of Ballarat.