Tonkin + Taylor

Transformed from a geotechnical lab into a privately held consultancy in 1981, now employee‑owned and agile.

Operates across New Zealand, Australia, Malaysia and Asia‑Pacific, blending local insight with regional impact.

Tackles ambitious infrastructure and environmental challenges—from dams and tunnels to urban regeneration.

Specialises in civil, geotechnical, water resources and environmental engineering, weaving disciplines together.

Has delivered landmark projects like Waterview Tunnel, Whau Valley Dam and earthquake recovery works.

Pioneers technical excellence through multidisciplinary, project‑specific teams adapting to complex needs.

Everyone matters

Empowered to deliver

Excellence every day