About Us
Your Geotechnical Construction Specialists
We are proud to be a wholly owned Australian business with a passion for providing comprehensive solutions to complex geotechnical challenges.
Our approach is built on collaboration, professionalism, and a strong focus on client satisfaction. By leveraging industry knowledge and proven methodologies, we deliver solutions that support project success while maintaining the highest standards of safety, quality, and environmental responsibility.
Our People
DGSA’s greatest asset is its people. From engineers and project managers to site supervisors and specialist operators, our team combines technical expertise, strong safety values, and a commitment to delivering quality outcomes through continuous training and effective leadership.
Our Track Record
DGSA has successfully delivered geotechnical construction projects across Queensland and beyond. Our extensive experience in ground improvement, remediation, and foundation solutions enables us to provide practical expertise, reliable delivery, and informed decision-making on every project.
Our Value
DGSA delivers measurable value through efficient planning, smart construction methods, and cost-effective geotechnical solutions. We work closely with clients to achieve the best technical outcome while reducing risk, controlling costs, and ensuring projects are delivered safely, on time, and within budget.
The Team

Tony Lansdown
Technical Director
Tony brings over 35 years of experience in piling and ground improvement. His extensive expertise, proven project success, and industry knowledge have earned the trust of clients and peers across Australia and internationally.

Jibran Alam
General Manager (Director)
Jibran brings extensive experience in ground improvement and deep foundation engineering, having delivered complex projects across Australia and internationally. Holding a Master of Science in Construction Management and Structural Engineering, he has developed a broad skill set spanning design, estimating, project delivery, commercial management and business development.

Dan Hague
Operations Manager (Director)
Dan possesses over 20 years of hands-on experience and extensive expertise in ground improvement techniques. He demonstrates strong leadership while ensuring all works are executed to the highest standards of safety, quality, and efficiency.

Rob McInnes
HR and Finance Manager (Director)
Rob brings more than 20 years of experience in the construction industry working with foundation contractors. He has extensive commercial and managerial experience across projects ranging from small-scale developments to large infrastructure works.

Jurie Engelbrecht
BD and Design Manager
Jurie is a Registered Professional Engineer (RPEQ) with 20 years of geotechnical experience across South Africa and Australia. He has worked across deep foundations, earth retention, and ground improvement, with strong expertise in project delivery, design management, and complex construction projects from concept to award.

Greg Cooney
Superintendent
Greg brings over 35 years of hands-on experience in ground improvement, with extensive site expertise across a wide range of techniques. He leads high-performing teams with a strong focus on safety, quality, and efficient delivery. His field experience across Australian projects makes him a key asset in managing complex construction works to the highest standards.

Eric Wong
Senior Project Engineer
Eric is a geotechnical engineer with 15 years of experience in piling and ground improvement projects. He has strong expertise in site management, geotechnical instrumentation, ITP preparation, and stakeholder communication, ensuring works are delivered safely and to high-quality standards.

Jarrod Hooper
Project Engineer
Jarrod is a highly organised project engineer with a strong background in geotechnical and construction materials testing, and ground improvement. As a NATA-accredited geotechnician, he developed expertise in CPT and CPTu interpretation, laboratory mix design, and quality assurance. At DGSA, he delivers mass and deep soil mixing, rigid inclusions, and mine remediation projects.

Amy Hague
Payroll and HR
Amy Hague supports DGSA’s HR and payroll functions, managing employee records, onboarding, and payroll processing. Her organised approach ensures smooth administration and helps the team focus on delivering quality outcomes.

Kegan Lansdown
Admin and IT
Kegan supports the DGSA team across administration and IT, ensuring internal systems, communications, and operational processes run smoothly. His behind-the-scenes contribution helps the team stay focused on delivering quality outcomes for clients.

Martin Hughes
Plant manager
Martin is a qualified Motor Mechanic with over 25 years of experience in plant, equipment, and operational management. He has held senior leadership roles, including National Plant Manager, delivering major construction and mining projects across Australia.
Sustainability
Committed To Keep People Healthy & Safe
Sustainability is central to our operations, guiding how we plan, design, and deliver every project. We focus on responsible practices that minimise environmental impact while supporting long-term, resilient outcomes.
We Follow Best Practices
We follow industry best practices and maintain a strong commitment to safety, quality, and operational excellence. Through careful planning, skilled execution, and continuous improvement, we strive to deliver dependable results that meet the highest professional standards.
- Sustainablility
- Project On Time
- Modern Technology
- Latest Designs
Our Clients











