Wallbridge Gilbert Aztec (WGA) is a multi‑disciplinary engineering and project management consultancy with more than 40 years of experience delivering complex infrastructure across Australia and New Zealand. Employee‑owned and regionally embedded, WGA employs over 800 people operating from offices across South Australia, Western Australia, Victoria, Queensland, New South Wales, the Northern Territory and New Zealand.

WGA supports clients across the full project lifecycle through engineering, project management and advisory services, with established capability in transport, water, power and renewables, ports and marine, defence‑related infrastructure, buildings, resources and industrial, urban development and sport and recreation sectors. Known for strong local leadership, long‑term client relationships and practical, buildable solutions, WGA operates with a delivery model aligned to how and where infrastructure is delivered.