# 30 leading multinational companies in Perth

Tamtam tracks 39 multinational companies headquartered in Perth. This list ranks the 30 largest by number of employees on LinkedIn, led by The University of Western Australia, Woodside Energy and Monadelphous. Their median headcount is 1,776. Half of them were founded in 1982 or later.

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.

🇦🇺 Perth · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [The University of Western Australia](https://www.tamtam.ai/c/the-university-of-western-australia) (uwa.edu.au)<br>An Australian research university known for excellence, innovation, and enterprise, located on a picturesque campus in Perth along the Swan River | Higher Education | 🇦🇺 Perth | 8,751 | 1911 |
| 2 | [Woodside Energy](https://www.tamtam.ai/c/woodside-energy) (woodside.com)<br>Operate diversified oil and gas assets globally with focus on safety, efficiency, environmental performance, and growth in gas, oil, and new energy sectors. | Oil and Gas | 🇦🇺 Perth | 5,933 | 1954 |
| 3 | [Monadelphous](https://www.tamtam.ai/c/monadelphous) (monadelphous.com.au)<br>An ASX-200 engineering group in Australia, providing construction, maintenance, and industrial services to the resources, energy, and infrastructure sectors | Construction | 🇦🇺 Perth | 5,712 | 1972 |
| 4 | [South32](https://www.tamtam.ai/c/south32) (south32.net)<br>Specializing in developing natural resources, we aim to enhance lives for present and future generations, trusted to unlock resource potential | Mining | 🇦🇺 Perth | 5,267 | 2014 |
| 5 | [Navitas](https://www.tamtam.ai/c/navitas) (navitas.com)<br>Global education provider offering a wide range of educational services, creating opportunities for learners, and fostering partnerships to improve learning outcomes worldwide | Higher Education | 🇦🇺 Perth | 5,048 |  |
| 6 | [St John of God Health Care](https://www.tamtam.ai/c/st-john-of-god-health-care) (sjog.org.au)<br>A leading provider of high-quality health care and community services in Australia and New Zealand, focusing on healing, hope, and dignity for all | Hospitals and Health Care | 🇦🇺 Perth | 4,826 | 1895 |
| 7 | [APM](https://www.tamtam.ai/c/apm) (apm.net.au)<br>Global health and human services company with over 14,500 employees in 11 countries, empowering individuals to achieve better lives through support and services | Health and Human Services | 🇦🇺 Perth | 4,658 |  |
| 8 | [Murdoch University](https://www.tamtam.ai/c/murdoch-university) (murdoch.edu.au)<br>A global university in Western Australia offering inclusive education, research, and innovation to students and staff from around the world | Higher Education | 🇦🇺 Perth | 3,750 |  |
| 9 | [Macmahon](https://www.tamtam.ai/c/macmahon) (macmahon.com.au)<br>An ASX-listed mining services company with expertise in both surface and underground mining, focusing on strong client relationships, safety, and sustainability | Mining | 🇦🇺 Perth | 3,292 | 1963 |
| 10 | [SRG Global](https://www.tamtam.ai/c/srg-global) (srgglobal.com.au)<br>A diversified industrial services provider offering asset maintenance, mining services, engineering, and construction solutions to solve complex problems in major industries | Construction | 🇦🇺 Perth | 2,514 | 1961 |
| 11 | [Cash Converters](https://www.tamtam.ai/c/cash-converters) (cashconverters.com)<br>Providing subprime loans and selling secondhand goods, supporting customers with financial solutions and affordable products across Australia. | Retail | 🇦🇺 Perth | 2,264 | 1984 |
| 12 | [INPEX Australia](https://www.tamtam.ai/c/inpex-australia) (inpex.com.au)<br>A leading oil and gas exploration company in Australia, involved in major projects like Ichthys LNG, with a strong focus on growth and success | Oil and Gas | 🇦🇺 Perth | 2,160 |  |
| 13 | [Clough](https://www.tamtam.ai/c/clough) (cloughgroup.com)<br>A pioneering project delivery organization that delivers high performing assets for energy, resources, and infrastructure industries with a focus on innovation and sustainability | Construction | 🇦🇺 Perth | 1,855 | 1919 |
| 14 | [RSM Australia](https://www.tamtam.ai/c/rsm-australia) (rsm.global)<br>A member of a global network providing assurance, tax, and consulting services with a client-centric approach and deep understanding of businesses | Accounting | 🇦🇺 Perth | 1,841 | 1922 |
| 15 | [Barminco](https://www.tamtam.ai/c/barminco) (barminco.com.au)<br>An international leader in hard rock underground mining, focusing on safety, service, and value for clients through proven expertise and methods | Mining | 🇦🇺 Perth | 1,776 | 1989 |
| 16 | [Lycopodium](https://www.tamtam.ai/c/lycopodium) (lycopodium.com)<br>Australian engineering consultancy specializing in project management across various industries, prioritizing client objectives, quality services, and growth through organic expansion and strategic acquisitions | Professional Services | 🇦🇺 Perth | 1,239 | 1992 |
| 17 | [VGW](https://www.tamtam.ai/c/vgw) (vgw.co)<br>Development and operation of free-to-play online social games with optional in-game purchases and sweepstakes for real prizes. | Entertainment Providers | 🇦🇺 Perth | 1,121 | 2010 |
| 18 | [MMA Offshore](https://www.tamtam.ai/c/mma-offshore) (cyanrenewables.com)<br>Specializes in high-specification vessel provision and marine/subsea services for offshore energy and maritime industries, cautioning against phishing schemes | Maritime Transportation | 🇦🇺 Perth | 1,042 | 1982 |
| 19 | [Iluka Resources](https://www.tamtam.ai/c/iluka-resources) (iluka.com)<br>Global critical minerals company specializing in exploration, mining, processing, and marketing of zircon, titanium feedstocks, and rare earth elements. | Mining | 🇦🇺 Perth | 895 |  |
| 20 | [Empired](https://www.tamtam.ai/c/empired) (empired.com)<br>The company provides IT services and solutions to improve productivity, empower staff, and automate business processes for organizations of all sizes and industries | IT Services and IT Consulting | 🇦🇺 Perth | 851 |  |
| 21 | [Calibre](https://www.tamtam.ai/c/calibre) (wsp.com)<br>A global engineering firm offering design, engineering, advisory, and environmental services with expertise in EPCM project delivery and major capital projects | Mining | 🇦🇺 Perth | 834 | 1993 |
| 22 | [iiNet](https://www.tamtam.ai/c/iinet) (iinet.net.au)<br>An Australian ISP offering ADSL2+ and nbn™ services with a focus on customer service and passion for connecting Australians better | Telecommunications | 🇦🇺 Perth | 829 |  |
| 23 | [Contract Resources Pty Ltd](https://www.tamtam.ai/c/contract-resources-pty-ltd) (contractresources.com)<br>Specializing in industrial services, this company focuses on safety, environmental sustainability, and total solution delivery for heavy process industries worldwide | Oil and Gas | 🇦🇺 Perth | 815 | 1989 |
| 24 | [St Barbara Limited](https://www.tamtam.ai/c/st-barbara-limited) (stbarbara.com.au)<br>An Australian ASX listed company with gold mining operations in Canada and Papua New Guinea | Mining | 🇦🇺 Perth | 637 | 1969 |
| 25 | [Lynas Rare Earths Ltd](https://www.tamtam.ai/c/lynas-rare-earths-ltd) (lynasrareearths.com)<br>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 | Mining | 🇦🇺 Perth | 620 |  |
| 26 | [RSC](https://www.tamtam.ai/c/rsc) (rscmme.com)<br>Global geological services company offering practical solutions from exploration to remediation, prioritizing client needs, team well-being, and integrity in all operations | Mining | 🇦🇺 Perth | 619 | 2008 |
| 27 | [Resolute Mining Limited](https://www.tamtam.ai/c/resolute-mining-limited) (rml.com.au)<br>Experienced explorer and developer operating gold mines in Mali and Senegal, utilizing advanced automation systems to produce millions of ounces of gold. | Mining | 🇦🇺 Perth | 608 |  |
| 28 | [Pioneer Credit Limited](https://www.tamtam.ai/c/pioneer-credit-limited) (pioneercredit.com.au)<br>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 | Financial Services | 🇦🇺 Perth | 438 | 1988 |
| 29 | [Micromine](https://www.tamtam.ai/c/micromine) (micromine.com)<br>Leading provider of innovative software solutions for the mining industry, offering tools for exploration, data management, resource estimation, mine design, and production control | Software Development | 🇦🇺 Perth | 422 | 1986 |
| 30 | [PROK](https://www.tamtam.ai/c/prok) (prok.com)<br>Global manufacturer of high-quality conveyor components with strategic global facilities and engineering teams, serving diverse industries including mining and engineering | Mining | 🇦🇺 Perth | 405 | 1880 |

## 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 largest companies in Perth](https://www.tamtam.ai/l/largest-companies-perth) (184)
- [Mining companies in Perth](https://www.tamtam.ai/l/mining-companies-perth) (28)

## The same list elsewhere in Australia

- [Multinational companies in Australia](https://www.tamtam.ai/l/multinational-companies-australia) (1,184)
- [Multinational companies in New South Wales](https://www.tamtam.ai/l/multinational-companies-new-south-wales) (512)
- [Multinational companies in Victoria](https://www.tamtam.ai/l/multinational-companies-victoria) (378)
- [Multinational companies in Queensland](https://www.tamtam.ai/l/multinational-companies-queensland) (134)
- [Multinational companies in Western Australia](https://www.tamtam.ai/l/multinational-companies-western-australia) (75)
- [Multinational companies in South Australia](https://www.tamtam.ai/l/multinational-companies-south-australia) (36)
- [Multinational companies in Sydney](https://www.tamtam.ai/l/multinational-companies-sydney) (279)
- [Multinational companies in Melbourne](https://www.tamtam.ai/l/multinational-companies-melbourne) (162)
- [Multinational companies in Brisbane](https://www.tamtam.ai/l/multinational-companies-brisbane) (41)
- [Multinational companies in North Sydney](https://www.tamtam.ai/l/multinational-companies-north-sydney) (36)

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Source: https://www.tamtam.ai/l/multinational-companies-perth