| # | Company | Employees |
|---|---|---|
| 1 |
South32south32.net
Specializing in developing natural resources, we aim to enhance lives for present and future generations, trusted to unlock resource potential |
5,267 |
| 2 |
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 |
| 3 |
Hancock Iron Orehancockironore.com.au
Combined iron ore mining operations focusing on resilience, innovation, and delivering high standards in mining and operational excellence. |
2,931 |
| 4 |
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 |
| 5 |
Linkforcelinkforce.com.au
Leading provider of maintenance, engineering, and project services with a workforce of 2,800+, serving mining, industrial, telecommunications, and energy sectors |
1,269 |
| 6 |
CITIC Pacific Miningciticpacificmining.com
operation of Australia鈥檚 largest magnetite mine with advanced processing, power station, desalination, and export facilities supporting steel industry |
1,179 |
| 7 |
Iluka Resourcesiluka.com
Global critical minerals company specializing in exploration, mining, processing, and marketing of zircon, titanium feedstocks, and rare earth elements. |
895 |
| 8 |
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 |
| 9 | 834 | |
| 10 |
NRW Civil & Miningnrwcivilmining.com.au
A leading contractor in resources and infrastructure sectors, specializing in mining and civil services Australia-wide, with strong community ties and Indigenous support initiatives |
718 |
| 11 |
St Barbara Limitedstbarbara.com.au
An Australian ASX listed company with gold mining operations in Canada and Papua New Guinea |
637 |
| 12 |
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 |
| 13 |
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 |
| 14 |
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 |
| 15 |
Talison Lithiumtalisonlithium.com
A global producer of lithium minerals with a world-class asset in Western Australia, supplying a global customer network for nearly 40 years |
546 |
| 16 |
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 |
| 17 | 405 | |
| 18 |
Karara Mining Limitedkararamining.com.au
An iron ore mining company in Western Australia, operating a long-life magnetite deposit with dedicated rail and port infrastructure for global export |
348 |
| 19 |
AngloGold Ashanti Australiaanglogoldashanti.com
A mining entity with premier gold operations in Western Australia, part of a global gold producer with projects worldwide |
346 |
| 20 |
Immersive Technologiesimmersivetechnologies.com
Global leader in equipment simulator solutions for optimizing operator safety and productivity, with proven track record in delivering cost reductions and measurable improvements |
320 |
| 21 |
Perilyaperilya.com.au
Leading Australian base metals mining and exploration operations with iconic mines in New South Wales, as well as projects in South Australia and Queensland |
180 |
| 22 |
Jetcretejetcrete.com.au
Leading ground support specialist in Australia, offering shotcreting services nationwide With 40+ years of experience, we provide complete underground and surface civil infrastructure solutions |
178 |
| 23 | 178 | |
| 24 |
Bellevue Goldbellevuegold.com.au
An Australian entity with a high-grade gold mine boasting a 31Moz Mineral Resource listed on ASX |
170 |
| 25 |
Tasman Rope Accesstasmanropeaccess.com
A leading rope access provider in Australia, offering tailored maintenance solutions with a focus on safety, social impact, and industry compliance |
170 |
| 26 |
Hancock Prospectinghancockprospecting.com.au
Australian-owned mining company with major assets in iron ore and agriculture sectors, including Roy Hill project and iconic cattle company S Kidman & Co |
163 |
| 27 |
Paull & Warner Resourcespwr.net.au
Integrated services for ER, equipment, training, and personnel needs, including qualified personnel, emergency response vehicles, training facilities, and nationally accredited training programs |
154 |
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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 Oct 9, 2026.