Tonkin is a leading provider of engineering, environmental and related services to private and public organisations. 

We design intelligent solutions for the buildings, environmental, land development, marine and riverine, transport, waste and water sectors. Our clients include commercial and residential developers, construction firms, municipal councils and government departments.

At Tonkin, we put a high value on curiosity and collaboration. We thrive on solving complex problems and finding creative and progressive ways to exceed the expectations of our clients.

We take our work seriously because we know the choices we make have long-term implications. We bring holistic thinking to the table, working for the benefit of the natural environment as well as the project at hand.

Many of the areas in which Tonkin operates are undergoing rapid growth. More than ever, being able to accurately predict future needs is a fundamental quality of good planning and design.

We have invested heavily in high calibre staff and industry-leading tools to give us the edge in shaping a sustainable future.

Tonkin plans and designs with a bigger picture in mind, always aiming to add unexpected value that benefits every stakeholder.

Construction

Engineering

Tonkin

Tonkin's headquarters in Adelaide, Australia

The Mount Gambier office focuses on engineering solutions for civil and structural projects in the region.

Mount Gambier

The Mildura office focuses on engineering solutions and technical support for regional infrastructure projects.

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Other offices