Global resources major headquartered in Melbourne — mining, processing and project engineering. BHP employs thousands of mining, mechanical, electrical and process engineers across iron ore, copper, coal and potash operations, with its Melbourne headquarters coordinating major capital projects and technical innovation programmes worldwide.

Rio Tinto

Perth, WA

Iron-ore engineering powerhouse running the Pilbara from its Central Park HQ. Rio Tinto's Perth office houses some of the world's largest autonomous-haulage, mine-planning and rail-engineering teams, managing 1,700 kilometres of heavy-haul rail and a fleet of driverless trucks across the Pilbara.

Worley

Sydney, NSW

Global engineering & EPCM firm in energy, chemicals and resources. Worley employs process, mechanical, structural and project engineers across its Sydney global headquarters, delivering front-end engineering, procurement and construction management for oil, gas, hydrogen and mining projects on six continents.

Aurecon

Melbourne, VIC

Multidisciplinary engineering consultancy with deep transport and infrastructure pipeline. Aurecon's Melbourne hub leads design and advisory work on major rail, road, water and building projects, employing civil, structural, geotechnical and digital engineers across Australasia and Africa.

GHD

Sydney, NSW

Australian-owned engineering, architecture and environmental consultancy operating globally. GHD's Parramatta headquarters coordinates a worldwide workforce of water, transport, energy and environmental engineers, delivering design and advisory services from Sydney to Toronto and London.

Lendlease Engineering

Sydney, NSW

Civil and major infrastructure delivery arm of the Lendlease group. The engineering division manages design-and-construct delivery on roads, rail, tunnels, airports and utilities projects, employing project engineers, site managers and construction professionals across Australia's largest infrastructure programme.

Fortescue Metals Group

Perth, WA

Iron ore and green energy engineering across the Pilbara and Fortescue Future Industries. FMG's Perth headquarters directs one of the world's lowest-cost iron-ore operations while rapidly expanding into hydrogen, ammonia and renewable-energy engineering through its Future Industries division.

Woodside Energy

Perth, WA

Australia's largest oil & gas producer with extensive subsea and topsides engineering teams. Woodside's Perth campus houses reservoir, subsea, facilities and project engineers responsible for developing LNG, hydrogen and carbon-capture projects across the North West Shelf, Scarborough and international assets.

Snowy Hydro

Cooma, NSW

Snowy 2.0 pumped hydro mega-project — Australia's largest renewables engineering build. The project involves tunnelling, hydro-mechanical and electrical engineering on a scale unmatched in the southern hemisphere, creating a vast renewable-energy storage system to stabilise the national electricity grid.

John Holland

Melbourne, VIC

Tier-1 infrastructure contractor delivering rail, tunnels and major civil works nationwide. John Holland employs civil, structural, rail and tunnelling engineers to deliver some of Australia's most complex infrastructure projects, from metro rail and highways to hospitals and defence facilities.