Tetra Tech Coffey
Delivering Geotechnical Excellence Across the Globe
Official Website: Tetra Tech Coffey: Engineers & Consultants Australia wide
Tetra Tech Coffey is part of the Tetra Tech family, a global consulting and engineering services company renowned for its commitment to Leading with Science®. With over 65 years of expertise, we provide comprehensive geotechnical, environmental, and materials testing services across Australia and beyond.
Global Reach, Local Expertise
Tetra Tech operates in over 100 countries, with 30,000 employees across 550 offices on 7 continents, making it a global leader in consulting and engineering services. The integration with Tetra Tech has strengthened our ability to deliver industry-leading solutions across sectors, including mining, transport, energy, water, and property development.
Core Services
At the core of Tetra Tech Coffeys service offering is our nationally recognised geotechnical capability. With a legacy spanning over six decades, we have delivered ground engineering solutions for projects of all sizes and complexitiesfrom local residential developments to internationally significant infrastructure and energy programs.
Our geotechnical services include:
- Preliminary and detailed site investigations
- Foundation and retaining wall design
- Slope stability and landslide risk assessments
- Tunnelling assessments and ground movement analysis
- Earthworks and ground improvement design
- Excavatability assessments and geotechnical risk reviews
- Geotechnical instrumentation and monitoring
- Construction phase support including Level 1 supervision and quality assurance
We provide technical direction from concept to completion, combining deep local experience with global expertise. Our solutions are grounded in robust analysis, supported by our in-house NATA-accredited laboratories, and enhanced through advanced numerical modelling, 3D visualisation, and digital geotechnical data management.
Our Expertise
Tetra Tech Coffey is recognised for technical excellence in complex and challenging environments. Our team comprises some of the most experienced geotechnical engineers, environmental scientists, and consultants in the industry. We leverage advanced site investigation techniques, innovative modelling tools, and in-house laboratories accredited to ISO standards.
Notable Projects
Tetra Tech Coffey is proud to be at the heart of our most transformative infrastructure and city-shaping projects.
From our early work on landmark developments like Burj Khalifa, Barangaroo and Melbourne Metro, to our continued involvement in next-generation infrastructure such as the Sydney Metro Western Sydney Airport line and the Western Harbour Tunnel, weve played a key role in shaping the future of urban mobility, resilience, and connectivity.
Our contribution extends across the regionfrom supporting port expansion at Lyttelton port in New Zealand to enabling complex tunnelling, transport, and urban development projects that are redefining how people live, work, and move through our cities.
Tetra Tech Coffey has contributed to landmark projects across Australia and internationally, including:
- Burj Khalifa (Dubai, UAE) Providing foundation engineering expertise for the worlds tallest building
- Barangaroo (Sydney, Australia) Delivering ground engineering and environmental solutions for one of Sydneys most significant urban renewal projects
- Sea Cliff Bridge (Coalcliff, NSW) Playing a key role in the geotechnical assessment and construction support for this iconic transport link
- Sydney Metro & M6 Tunnelling (Australia) Providing comprehensive geotechnical investigations and construction oversight
- Lyttleton Port (New Zealand) Supporting port expansion and coastal resilience projects
Burj Khalifa (Dubai, UAE)
Industry Recognition
We are proud recipients of multiple industry awards and commendations for our contributions to major transport, energy, and infrastructure developments. Tetra Techs commitment to innovation, safety, and sustainability underpins our approach to every project.
Innovative Solutions & Technical Leadership
Our approach is driven by Leading with Science®, integrating advanced technologies and cutting-edge methodologies into geotechnical engineering, environmental management, and asset lifecycle solutions. Our teams leverage spatial AI, digital engineering, and geospatial analytics through proprietary tools like FusionMap®, ensuring data-driven decision-making.
Commitment to Sustainability & Innovation
As part of Tetra Tech, our work aligns with global efforts to create resilient infrastructure and environmentally sustainable solutions. Our technical experts contribute to renewable energy projects, climate adaptation strategies, and sustainable urban planning initiatives. We are dedicated to helping clients achieve their environmental and sustainability goals through industry-leading expertise and innovative solutions.
