Our people are our key asset.  We strive to provide our team of around 150 people in all offices with the best -

  • opportunities 
  • flexibility 
  • fulfilment 
  • training 
  • conditions

See our Working With Us page for job opportunities at Proteus.

Tetra Tech Proteus was established in 1985 and is a leading provider of engineering services to the mining and industrial sectors of Australia and Asia. With over 30 years’ experience, Proteus has developed expertise in a wide variety of commodities. The group undertakes studies, detailed design services and projects on an EPC/ EPCM basis. Its headquarters are in Perth, Australia.
Proteus was acquired by Tetra Tech in 2011.


Company Overall Management Structure

Tetra Tech Inc.

Tetra Tech Inc. (Tetra Tech) is a leading provider of consulting, engineering, program management, construction management, and technical services. The Company supports government and commercial clients by providing innovative solutions to complex problems focused on water, environment, energy, infrastructure, and natural resources.
Tetra Tech currently has more than 16,000 employees located in more than 400 offices worldwide. Tetra Tech is headquartered in Pasadena, California. Tetra Tech is arranged in three Business Groups each of which features a series of Operating Units.

Coffey Operating Unit

Tetra Tech purchased Coffey International in January 2016. Coffey is a professional services company with expertise in geoservices, environmental and project management. With a global footprint, Coffey creates value across the asset lifecycle in the oil and gas, power generation and mining industries – providing our clients with smarter solutions.