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CGC was established in 2015 by three like-minded engineers who were driven to create a company that provided smart solutions to geotechnical challenges, while making a positive impact on our community. The CGC business model is underpinned by a commitment to building trusting partnerships and developing innovative solutions for clients, while creating stronger foundations in our community. In 2019, CGC was certified as a social enterprise by Social Traders, formally recognising CGC's commitment to improving learning opportunities for young people.

We are recognised professionals in transport and civil geotechnics

CGC provides specialist geotechnical engineering services for transport and civil infrastructure and have been selected as partners on many of South East Queensland’s most important transport infrastructure projects. Our extensive experience, knowledge, and highest possible geotechnical accreditations equip us to deliver smart, practical, and cost-effective engineering solutions, alongside positive social change. We have offices in Brisbane and the Sunshine Coast.

We are committed to positive social change

We are Australia’s only certified engineering social enterprise, investing half our profits into programs designed to improve learning opportunities for young people. Our investment in social impact is changing the lives of young people.

Our business


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Director - Principal Geotechnical Engineer

David has extensive experience in roads, rail and tunnelling across NSW, Queensland and Sri Lanka. He is a Fellow of Engineers Australia, an accredited slope risk assessor and is on the Individual Expert Panel with TMR (Geotechnical Engineering and Engineering Geology). David’s in-depth knowledge of geotechnical design, along with his track record in analysing risk and identifying opportunities, has resulted in project cost savings and helped him build trusted client relationships.

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Director - Principal Geotechnical Engineer

Barry’s expertise in managing projects and delivering geotechnical content across feasibility, design and construction has resulted in CGC’s involvement in many of Qld’s nation-building projects. Barry is on the Individual Expert Panel with TMR (Geotechnical Engineering and Engineering Geology) and has led large, complex teams, bringing an intimate understanding and robust knowledge of geotechnical investigation, design and construction requirements to the delivery of his projects.

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Director - Principal Geotechnical Engineer

Ian manages CGC’s Sunshine Coast office and is an industry leader in UAV (drone) applications. Ian has proven capability for developing practical and cost-effective engineering solutions across geotechnical site investigations, design and construction in Australia, Asia and the Pacific. Ian has developed bespoke design and risk management monitoring portals to manage high-risk slopes for clients such as Brisbane City Council and the Qld Dept of Transport and Main Roads.

Key people


Our accreditations give our clients assurance that our work will be delivered to the highest standards.

  • Qld Dept of Transport and Main Roads GE3 - Geotechnical Engineering (highest level accreditation)

  • Qld Dept of Transport and Main Roads Specialist Services Panel - Geotechnical/Geology

  • Queensland Government Engineering Consultant Scheme - Geotechnical

  • Quality Management Systems ISO9001:2015 certified

  • Environmental Management Systems ISO14001:2015 certified

  • Occupational Health & Safety Management Systems ISO45001:2018 certified

  • CASA Remote Operations Certificate (ReOC) holder

  • Approved NSW RMS Slope Risk Assessors

  • NSW Government Consultants in Construction approved supplier

  • Local Buy and Vendor Panel approved engineering consultancy​

  • Certified Social Enterprise by Social Traders 

All our Principal Engineers are members of Chartered Engineers and Registered Professional Engineers of Queensland

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