These multinational companies in Perth are predominantly large firms in the mining, oil and gas, construction, and higher education sectors. For example, Woodside Energy operates diversified oil and gas assets globally, while Monadelphous is an engineering group providing construction and maintenance services. The University of Western Australia and Navitas are prominent in higher education, and South32 specializes in developing natural resources.
A notable pattern among these companies is their significant employee count, indicating their status as major employers. Many of these firms also have headquarters in Perth, reflecting the city's role as a regional hub for these industries. The presence of several educational institutions alongside resource and service providers suggests a diverse economic base.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
The University of Western Australiauwa.edu.au
An Australian research university known for excellence, innovation, and enterprise, located on a picturesque campus in Perth along the Swan River |
8,751 | |||
| 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 |
Navitasnavitas.com
Global education provider offering a wide range of educational services, creating opportunities for learners, and fostering partnerships to improve learning outcomes worldwide |
5,048 | |||
| 6 |
St John of God Health Caresjog.org.au
A leading provider of high-quality health care and community services in Australia and New Zealand, focusing on healing, hope, and dignity for all |
4,826 | |||
| 7 |
APMapm.net.au
Global health and human services company with over 14,500 employees in 11 countries, empowering individuals to achieve better lives through support and services |
4,658 | |||
| 8 |
Murdoch Universitymurdoch.edu.au
A global university in Western Australia offering inclusive education, research, and innovation to students and staff from around the world |
3,750 | |||
| 9 |
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 | |||
| 10 |
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 | |||
| 11 |
Cash Converterscashconverters.com
Providing subprime loans and selling secondhand goods, supporting customers with financial solutions and affordable products across Australia. |
2,264 | |||
| 12 |
INPEX Australiainpex.com.au
A leading oil and gas exploration company in Australia, involved in major projects like Ichthys LNG, with a strong focus on growth and success |
2,160 | |||
| 13 |
Cloughcloughgroup.com
A pioneering project delivery organization that delivers high performing assets for energy, resources, and infrastructure industries with a focus on innovation and sustainability |
1,855 | |||
| 14 |
RSM Australiarsm.global
A member of a global network providing assurance, tax, and consulting services with a client-centric approach and deep understanding of businesses |
1,841 | |||
| 15 |
Barmincobarminco.com.au
An international leader in hard rock underground mining, focusing on safety, service, and value for clients through proven expertise and methods |
1,776 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
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 | |||
| 17 | 1,121 | ||||
| 18 |
MMA Offshorecyanrenewables.com
Specializes in high-specification vessel provision and marine/subsea services for offshore energy and maritime industries, cautioning against phishing schemes |
1,042 | |||
| 19 |
Iluka Resourcesiluka.com
Global critical minerals company specializing in exploration, mining, processing, and marketing of zircon, titanium feedstocks, and rare earth elements. |
895 | |||
| 20 |
Empiredempired.com
The company provides IT services and solutions to improve productivity, empower staff, and automate business processes for organizations of all sizes and industries |
851 | |||
| 21 | 834 | ||||
| 22 |
iiNetiinet.net.au
An Australian ISP offering ADSL2+ and nbn™ services with a focus on customer service and passion for connecting Australians better |
829 | |||
| 23 |
Contract Resources Pty Ltdcontractresources.com
Specializing in industrial services, this company focuses on safety, environmental sustainability, and total solution delivery for heavy process industries worldwide |
815 | |||
| 24 |
St Barbara Limitedstbarbara.com.au
An Australian ASX listed company with gold mining operations in Canada and Papua New Guinea |
637 | |||
| 25 |
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 | |||
| 26 |
RSCrscmme.com
Global geological services company offering practical solutions from exploration to remediation, prioritizing client needs, team well-being, and integrity in all operations |
619 | |||
| 27 |
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 | |||
| 28 |
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 | |||
| 29 |
Microminemicromine.com
Leading provider of innovative software solutions for the mining industry, offering tools for exploration, data management, resource estimation, mine design, and production control |
422 | |||
| 30 | 405 | ||||
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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 11, 2026.
More company lists in Perth
The same list elsewhere in Australia
- Multinational companies in Australia 1,184
- Multinational companies in New South Wales 512
- Multinational companies in Victoria 378
- Multinational companies in Queensland 134
- Multinational companies in Western Australia 75
- Multinational companies in South Australia 36
- Multinational companies in Sydney 279
- Multinational companies in Melbourne 162
- Multinational companies in Brisbane 41
- Multinational companies in North Sydney 36