This selection showcases large organizations in Western Australia with in-house R&D capabilities, primarily focusing on public services, mining, and manufacturing. Notable examples include Fortescue, a mining company developing green energy, and Curtin University, an internationally focused higher education institution. Silverchain Group provides in-home health and aged care services, while Austal specializes in shipbuilding for commercial and defense sectors. The Department of Primary Industries & Regional Development focuses on agriculture and regional economies, and VGW develops online social games.
A significant pattern within this group is the strong presence of healthcare providers, with Silverchain Group, North Metropolitan Health Service, Royal Perth Hospital, South Metropolitan Health Service, East Metropolitan Health Service, PATHWEST LABORATORY MEDICINE WA, and Brightwater Care Group Ltd. all operating in this sector. This indicates a substantial investment in health and social care infrastructure and research in the region.
| # | 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 |
Curtin Universitycurtin.edu.au
An internationally focused university with campuses in multiple countries, connecting students to industries and organizations globally, emphasizing real-world issues and job readiness |
9,451 | |||
| 3 |
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 | |||
| 4 |
Silverchain Groupsilverchain.org.au
A leading Australian organization providing high-quality, in-home health and aged care services supported by research, technology, and compassionate care |
2,214 | |||
| 5 |
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 | |||
| 6 |
Department of Primary Industries & Regional Developmentdpird.wa.gov.au
Dedicated to sustaining Western Australia's agriculture, food industry, and aquatic resources, while fostering prosperous regional communities and economies |
1,733 | |||
| 7 |
North Metropolitan Health Servicenmhs.health.wa.gov.au
Provider of comprehensive hospital and health services to over 729,144 residents in Western Australia, offering tertiary, secondary, and specialist care |
1,329 | |||
| 8 |
Royal Perth Hospitalrph.health.wa.gov.au
A leading hospital offering adult major trauma, complex surgery, mental health, and specialized medical services since 1855 in Western Australia |
1,311 | |||
| 9 |
South Metropolitan Health Servicesouthmetropolitan.health.wa.gov.au
A network of health services providing high quality, innovative, and accessible healthcare to over 648,000 people in southern Perth, Western Australia |
1,296 | |||
| 10 | 1,121 | ||||
| 11 |
East Metropolitan Health Serviceemhs.health.wa.gov.au
A hospital and health service network in East Metropolitan region of Western Australia providing comprehensive healthcare services to over 725,000 residents |
953 | |||
| 12 |
PATHWEST LABORATORY MEDICINE WApathwest.health.wa.gov.au
Leading provider of pathology and forensic services in Western Australia, offering a wide range of diagnostic testing, teaching, research, and clinical support to the community |
886 | |||
| 13 |
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 | |||
| 14 |
Department of Biodiversity, Conservation and Attractionsdbca.wa.gov.au
Promoting biodiversity and conservation, managing ecosystems and attractions in Western Australia, and providing excellent customer service aligned with strategic priorities |
744 | |||
| 15 |
Brightwater Care Group Ltd.brightwatergroup.com
A leading not-for-profit provider of aged care, disability, and retirement services, supporting people of all ages to improve their quality of life |
709 | |||
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 |
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 | |||
| 17 |
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 | |||
| 18 |
RCT - Powered by Epirocrct-global.com
Innovative smart technology company designing, manufacturing, and delivering custom solutions for mining, industrial, agricultural, and civil sectors globally |
541 | |||
| 19 |
Perth Radiological Clinicperthradclinic.com.au
Leading medical imaging practice in Western Australia with expert radiologists, advanced equipment, and patient-focused diagnostic services across multiple clinics. |
509 | |||
| 20 |
Hofmann Engineering Pty Ltdhofmannengineering.com
Provider of specialist engineered parts and services for mining, defence, transport, and energy industries worldwide Focus on research, development, and manufacturing across multiple countries |
484 | |||
| 21 |
Moodlemoodle.com
A trusted online learning solution with a customizable open source platform used by millions worldwide, offering services, expertise, and resources to empower educators |
473 | |||
| 22 | 444 | ||||
| 23 |
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 | |||
| 24 |
Parks and Wildlife Service Western Australiadbca.wa.gov.au
This company delivers on-ground operations for public involvement, visitor services, forest and ecosystem management, river and estuary management, and fire management services |
381 | |||
| 25 |
Swick Mining Servicesswickmining.com
A leading mineral drilling contractor offering innovative underground diamond drilling services to global mining companies in precious, base metals, and bulk commodities |
351 | |||
| 26 |
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 | |||
| 27 |
Mammoth Equipment and Exhaustsmammothequip.com
Global leader in providing innovative equipment solutions for various industries, enhancing machine performance and reliability through expert design and engineering |
261 | |||
| 28 |
Lions Eye Institutelei.org.au
A not-for-profit center combining research and eye care to prevent blindness, offer ophthalmic services, and conduct clinical trials for eye diseases |
240 | |||
| 29 |
Sea to Summitseatosummit.com
An innovative design and product development company creating intuitively simple outdoor products, distributing other top brands, and inspiring outdoor enthusiasts worldwide |
183 | |||
| 30 |
Carbon280 Hydrilyte庐 Hydrogen Storage Systemscarbon280.com
The company is commercializing the Hydrilyte Hydrogen Storage System, a safe, non-toxic, and cost-effective solution for renewable energy firming on the grid |
6 | |||
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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 12, 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
- Publicly traded companies in Western Australia 45
- 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
- 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
- Companies with in-house R&D in Australia 235
- Companies with in-house R&D in New South Wales 80
- Companies with in-house R&D in Victoria 75