Welcome to JDK Geotech

Trusted Leaders Within The Civil Construction, Mining & Tunnelling Industry

Our Expertise Explore Projects


JDK is a management consultant specialising in the delivery of technical services and project management advice for large-scale infrastructure and transportation projects. 

Founded in Sydney, Australia, in 2016, our internal team has grown upward to ten consultants with combined expertise exceeding 100 years of professional experience. Our success is built on mutual trust, professional responsibility and maintaining high standards across all levels of our organisation.

As a leading project management firm, we deliver collaborative and innovative solutions to our client's projects, providing value throughout the whole asset life cycle.



JDK was engaged in the Critical Areas Audit of our CapCoal Operations for the past 36 months. Excellent service and high standards for the provision of the geotechnical scope of works. Repeated consultant over many of our projects as a result of on-time deliverables and high standards.

Johan Van Der Schyff - Geotechnical Engineer - Anglo American CapCoal Operations

The JDK team were engaged in the provision of geotechnical services for the NorthConnex project and as a result of their excellent service, they were re-engaged for the geotechnical services on our Sydney Metro Central Adit project. Excellent service, on-time deliverables exceeding the standard going above and beyond.

Todd Shillito - M&E Superintendent Tunnelling Solutions

Excellent service for the provision of project engineering and geotechnical services. Repeated consultant as a result of technical expertise and high standards.

John Boullier - Senior Project Engineer - Sydney Metro Central Station Main Works

Affiliations and Accreditations