These publicly traded companies in Western Australia are predominantly large firms in mining and construction, reflecting the region's strong resources sector. Notable examples include Fortescue, which supplies iron ore and develops green energy, and Woodside Energy, operating diversified oil and gas assets. Monadelphous provides engineering services, while Mineral Resources Limited focuses on lithium, iron ore, and energy.
The data shows a concentration of headquarters in Perth, with companies like South32 specializing in natural resource development and Macmahon providing mining services. Austal, a global shipbuilder, is located in Henderson. The prevalence of mining and construction firms highlights the industrial backbone of Western Australia's economy.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Fortescuefortescue.com
Supplying global steel industries with iron ore while developing green energy technologies and zero emission solutions to eliminate fossil fuels across operations. |
10,056 | |||
| 2 |
Woodside Energywoodside.com
Operate diversified oil and gas assets globally with focus on safety, efficiency, environmental performance, and growth in gas, oil, and new energy sectors. |
5,933 | |||
| 3 |
Monadelphousmonadelphous.com.au
An ASX-200 engineering group in Australia, providing construction, maintenance, and industrial services to the resources, energy, and infrastructure sectors |
5,712 | |||
| 4 |
South32south32.net
Specializing in developing natural resources, we aim to enhance lives for present and future generations, trusted to unlock resource potential |
5,267 | |||
| 5 |
Mineral Resources Limitedmineralresources.com.au
A leading diversified resources company operating in lithium, iron ore, energy, and mining services in Western Australia, known for innovation and strong performance |
4,163 | |||
| 6 |
Macmahonmacmahon.com.au
An ASX-listed mining services company with expertise in both surface and underground mining, focusing on strong client relationships, safety, and sustainability |
3,292 | |||
| 7 |
SRG Globalsrgglobal.com.au
A diversified industrial services provider offering asset maintenance, mining services, engineering, and construction solutions to solve complex problems in major industries |
2,514 | |||
| 8 |
Cash Converterscashconverters.com
Providing subprime loans and selling secondhand goods, supporting customers with financial solutions and affordable products across Australia. |
2,264 | |||
| 9 |
Northern Star Resources Limitednsrltd.com
A global-scale Australian gold producer with high-quality mines in Australia and North America, focused on maximizing shareholder returns through acquisitions and exploration |
2,163 | |||
| 10 |
Austalaustal.com
A global shipbuilder that designs, constructs, and sustains advanced commercial and defence vessels, with a focus on aluminium shipbuilding and international projects |
1,937 | |||
| 11 |
Newmont Australianewmont.com
A global gold producer with operations on four continents, including in Australia Included in S&P 500 and Fortune 500, with a focus on sustainability |
1,504 | |||
| 12 |
Mader Groupmadergroup.com.au
A global provider of technical services in mining, energy, and industrial sectors, optimizing fleet and plant performance with a dedicated team |
1,427 | |||
| 13 |
Perseus Mining Limitedperseusmining.com
An African-focused gold production, development, and exploration company with projects in Ghana and C么te d鈥橧voire aiming to become a multi-mine gold producer in West Africa |
1,356 | |||
| 14 |
GenusPlus Groupgenus.com.au
Designs, constructs, maintains critical power and communications infrastructure across Australia, including transmission, substations, renewables, and communication solutions, supporting national development and progress. |
1,276 | |||
| 15 |
Lycopodiumlycopodium.com
Australian engineering consultancy specializing in project management across various industries, prioritizing client objectives, quality services, and growth through organic expansion and strategic acquisitions |
1,239 | |||
| 16 |
WBHO Infrastructurewbho.com.au
An international specialist group focused on engineering-led asset maintenance, mining services, and infrastructure solutions |
1,126 | |||
| 17 |
Iluka Resourcesiluka.com
Global critical minerals company specializing in exploration, mining, processing, and marketing of zircon, titanium feedstocks, and rare earth elements. |
895 | |||
| 18 |
Duratecduratec.com.au
Specializing in steel and concrete protection and remediation, offering cost-effective solutions to extend asset life through innovative programs and methodologies |
873 | |||
| 19 |
Westgold Resources Limitedwestgold.com.au
A Western Australian gold miner with 4 underground mines, 3 processing hubs, and >1400 employees, focused on creating wealth for stakeholders |
855 | |||
| 20 |
Austin Engineering Ltdaustineng.com
Global provider of complex engineering mining solutions worldwide, designing, building, and supporting customised solutions for leading mining companies across six continents |
664 | |||
| 21 |
St Barbara Limitedstbarbara.com.au
An Australian ASX listed company with gold mining operations in Canada and Papua New Guinea |
637 | |||
| 22 |
Lynas Rare Earths Ltdlynasrareearths.com
A leading producer of separated Rare Earths with a high-grade mine in Australia and the world's largest processing plant in Malaysia Currently building a new processing facility |
620 | |||
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| 23 |
Resolute Mining Limitedrml.com.au
Experienced explorer and developer operating gold mines in Mali and Senegal, utilizing advanced automation systems to produce millions of ounces of gold. |
608 | |||
| 24 |
MLGmlgoz.com.au
A founder-led company providing innovative mine site & supply chain solutions to the Australian mining and civil infrastructure industries for over 21 years |
568 | |||
| 25 |
Pilbara Minerals Limitedpilbaraminerals.com.au
Leading ASX-listed pure-play lithium producer with world's largest independent hard-rock lithium operation, focusing on sustainable, low-cost lithium production and supply chain integration |
554 | |||
| 26 |
SCEE Electricalsceeelectrical.com.au
A national provider of electrical services to resources and infrastructure sectors, offering maintenance, instrumentation, communication, and smart energy solutions with proven expertise |
544 | |||
| 27 |
Verisveris.com.au
Leading provider of spatial data services in Australia for private and public sectors, delivering innovative solutions through a highly-skilled team |
533 | |||
| 28 |
IGO Ltdigo.com.au
An organization focused on discovering, developing, and delivering clean energy products while maintaining a strong culture of caring for people and stakeholders |
531 | |||
| 29 |
West African Resourceswestafricanresources.com
Newest unhedged gold producer in West Africa, with a successful gold pour at Sanbrado Gold Project in Burkina Faso in March 2020 |
477 | |||
| 30 |
Bhagwan Marinebhagwanmarine.com
A leading marine solutions provider offering offshore, inshore, and subsea services, engineering, civil construction support, and project management across various industries |
468 | |||
| 31 |
Automotive Holdings Group (AHG)eagersautomotive.com.au
Leading automotive retail group with over 100 years of history, operating dealerships across Australia and New Zealand offering new/used vehicles, service, parts, and consumer finance |
453 | |||
| 32 |
GR Engineering Services Ltdgres.com.au
An engineering, consulting, and contracting company specializing in fixed-price design and construction services for the resources and mineral processing industries, both locally and internationally |
447 | |||
| 33 | 444 | ||||
| 34 |
Emeco Groupemecogroup.com
The world's largest provider of mining equipment rentals offering tailored solutions to drive productivity and efficiency improvements in the industry |
439 | |||
| 35 |
Pioneer Credit Limitedpioneercredit.com.au
Australian financial services provider specializing in acquiring and servicing retail debt portfolios with a focus on helping customers overcome financial difficulties through outstanding customer service |
438 | |||
| 36 |
Vault Mineralsvaultminerals.com
An ASX-listed gold mining operation in Australia with a major new gold mine ramping up to full production in Western Australia |
411 | |||
| 37 |
Genesis Minerals Limitedgenesisminerals.com.au
Australian gold exploration and mine development company with high quality projects in Western Australia, focused on long-life standalone gold operations and expanding Mineral Resources |
406 | |||
| 38 |
Sandfiresandfire.com.au
An Australian mining and exploration company focused on safe, consistent, and profitable production, with plans to grow into a globally diversified and sustainable mining company |
403 | |||
| 39 |
Toxfreecleanaway.com.au
A leading waste management company in Australia providing safe, reliable, and sustainable solutions for commercial, industrial, medical, and hazardous waste |
391 | |||
| 40 |
Regis Resources Ltdregisresources.com.au
A premier gold producer and explorer operating in Australia, with a focus on safe, responsible, and reliable production performance in two project areas |
327 | |||
| 41 |
Catalyst Metalscatalystmetals.com.au
Canadian gold producer operating the Plutonic Gold operations in Western Australia, including underground and open pit projects with a focus on expanding production |
215 | |||
| 42 |
Bentley Perthperth.bentleymotors.com
Luxury car lover's paradise in Western Australia, offering authorized sales and service for Bentley vehicles The go-to destination for Bentley enthusiasts |
35 | |||
| 43 |
Euroz Hartleys Group Limitedeurozhartleys.com
A diversified financial services company offering stockbroking, wealth management, funds management, research, institutional sales, private wealth services, and corporate finance advice |
22 | |||
| 44 |
Jobmanjobman.com
Versatile job management software for manufacturing projects, handling job creation, costing, ordering, stock control, and staff productivity in real-time Flexible ERP accessible remotely |
16 | |||
| 45 |
Alderan Resourcesalderanresources.com.au
Focused on acquiring and developing advanced copper-gold projects in Utah, USA Listed on ASX |
4 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 13, 2026.
More company lists in Western Australia
- The largest companies in Western Australia 475
- Mining companies in Western Australia 80
- Multinational companies in Western Australia 75
- Government Administration companies in Western Australia 46
- Critical infrastructure operators in Western Australia 42
- Healthcare providers in Western Australia 37
- Public sector organisations in Western Australia 37
- Professional services firms in Western Australia 37
- Education providers in Western Australia 34
- Hospitals and Health Care companies in Western Australia 31
- Companies with in-house R&D in Western Australia 30
- Construction companies in Western Australia 29
- Corporate groups and holding companies in Western Australia 29
- Manufacturers in Western Australia 26
- Retail chains in Western Australia 25
The same list elsewhere in Australia
- Publicly traded companies in Australia 299
- Publicly traded companies in New South Wales 121
- Publicly traded companies in Victoria 89
- Publicly traded companies in Queensland 33
- Publicly traded companies in Sydney 78
- Publicly traded companies in Melbourne 36