# 30 leading healthcare providers in Sydney

Tamtam tracks 37 healthcare providers headquartered in Sydney. This list ranks the 30 largest by number of employees on LinkedIn, led by Ramsay Health Care, Uniting and Healius Limited. Their median headcount is 888. Half of them were founded in 2000 or later.

The healthcare sector in Sydney features a mix of large established providers and newer digital health platforms. Companies like Ramsay Health Care, Uniting, and Calvary Health Care provide extensive hospital, community, and aged care services. Healius Limited specializes in diagnostic and pathology services, while GenesisCare focuses on integrated cancer care.

The companies listed primarily operate in the Hospitals and Health Care industry, with a notable presence of Non-profit Organizations such as Uniting and Wesley Mission. Most of these larger organizations are headquartered in Sydney, serving both local and national populations, with some extending their services internationally.

🇦🇺 Sydney · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Ramsay Health Care](https://www.tamtam.ai/c/ramsay-health-care) (ramsayhealth.com)<br>Provider of private hospitals, clinics, mental health, diagnostics, and community care services across multiple countries with extensive healthcare staff. | Hospitals and Health Care | 🇦🇺 Sydney | 11,896 | 1964 |
| 2 | [Uniting](https://www.tamtam.ai/c/uniting-sydney) (uniting.org)<br>An organization dedicated to inspiring, supporting, and advocating for individuals in local communities, promoting social justice and celebrating diversity | Non-profit Organizations | 🇦🇺 Sydney | 4,761 | 1920 |
| 3 | [Healius Limited](https://www.tamtam.ai/c/healius-limited) (healius.com.au)<br>Provides affordable, accessible specialty diagnostic and pathology services across Australia through extensive laboratories and patient collection centers. | Hospitals and Health Care | 🇦🇺 Sydney | 3,531 |  |
| 4 | [Calvary Health Care](https://www.tamtam.ai/c/calvary-health-care) (calvarycare.org.au)<br>A charitable Catholic health care organization founded in 1885, providing compassionate and quality services to the most vulnerable populations across Australia | Hospitals and Health Care | 🇦🇺 Sydney | 3,336 | 1885 |
| 5 | [GenesisCare](https://www.tamtam.ai/c/genesiscare) (genesiscare.com)<br>Provider of integrated cancer care globally, focusing on personalized treatment experiences and access to radiotherapy, diagnostics, oncology, surgery, and clinical trials | Hospitals and Health Care | 🇦🇺 Sydney | 3,134 |  |
| 6 | [NSW Ambulance](https://www.tamtam.ai/c/nsw-ambulance) (ambulance.nsw.gov.au)<br>Provider of high quality out-of-hospital clinical care to over 725 million people in NSW through emergency responses and community safety programs | Hospitals and Health Care | 🇦🇺 Sydney | 2,840 | 1895 |
| 7 | [Estia Health](https://www.tamtam.ai/c/estia-health) (estiahealth.com.au)<br>Provider of compassionate residential aged care with 70+ homes across Australia, delivering exceptional care and enriching experiences for residents. | Hospitals and Health Care | 🇦🇺 Sydney | 2,737 | 2005 |
| 8 | [Sonic Healthcare Australia Clinical Services](https://www.tamtam.ai/c/sonic-healthcare-australia-clinical-services) (scs.com.au)<br>National healthcare services provider offering a wide range of health services including general practice, occupational health, nursing, research programs, and chronic disease management programs | Hospitals and Health Care | 🇦🇺 Sydney | 2,681 |  |
| 9 | [Sonic Healthcare](https://www.tamtam.ai/c/sonic-healthcare) (sonichealthcare.com)<br>Internationally renowned healthcare provider specializing in pathology, radiology, and primary care with operations in multiple countries and a focus on quality medical diagnostic services | Hospitals and Health Care | 🇦🇺 Sydney | 2,328 | 1987 |
| 10 | [I-MED Radiology Network](https://www.tamtam.ai/c/i-med-radiology-network) (i-med.com.au)<br>Australia's leading diagnostic imaging network offering a wide range of medical imaging and radiology services across 240 clinics nationwide | Hospitals and Health Care | 🇦🇺 Sydney | 2,033 |  |
| 11 | [Western Sydney Local Health District](https://www.tamtam.ai/c/western-sydney-local-health-district) (nsw.gov.au)<br>Delivering comprehensive healthcare to over a million residents in Western Sydney through top-notch clinical expertise, research, and compassionate care | Hospitals and Health Care | 🇦🇺 Sydney | 1,764 | 2011 |
| 12 | [HammondCare](https://www.tamtam.ai/c/hammondcare) (hammond.com.au)<br>A Christian charity specializing in aged care, dementia care, palliative care, rehabilitation, mental health, and dementia support services in Australia and the UK | Hospitals and Health Care | 🇦🇺 Sydney | 1,749 | 1932 |
| 13 | [Wesley Mission](https://www.tamtam.ai/c/wesley-mission) (wesleymission.org.au)<br>A Christian organization in Australia providing support, advocacy, and community programs for vulnerable individuals and families for over 200 years | Non-profit Organizations | 🇦🇺 Sydney | 1,295 | 1812 |
| 14 | [NSW Justice Health & Forensic Mental Health Network](https://www.tamtam.ai/c/nsw-justice-health-and-forensic-mental-health-network) (nsw.gov.au)<br>Delivering healthcare to adults and young people in contact with forensic mental health and criminal justice systems in NSW | Hospitals and Health Care | 🇦🇺 Sydney | 898 |  |
| 15 | [Eucalyptus](https://www.tamtam.ai/c/eucalyptus) (eucalyptus.health)<br>Digital healthcare platform offering telehealth services for men's health, fertility, dermatology, weight loss, and menopause, with a focus on high-quality care and patient safety | Health and Human Services | 🇦🇺 Sydney | 888 | 2019 |
| 16 | [Bupa Aged Care Australia](https://www.tamtam.ai/c/bupa-aged-care-australia) (bupaagedcare.com.au)<br>Leading operator of residential aged care homes across Australia, with over 6000 committed employees providing quality care and innovative dementia support | Wellness and Fitness Services | 🇦🇺 Sydney | 841 |  |
| 17 | [Lumus Imaging](https://www.tamtam.ai/c/lumus-imaging) (lumusimaging.com.au)<br>A passionate team of 2000 experts providing affordable, accessible, and timely diagnostic imaging services with care and accountability across Australia | Hospitals and Health Care | 🇦🇺 Sydney | 833 |  |
| 18 | [Virtus Health](https://www.tamtam.ai/c/virtus-health) (virtushealth.com.au)<br>Leader in fertility care and IVF services with top clinicians, scientists, and global presence Specializing in safe and successful treatment programs | Hospitals and Health Care | 🇦🇺 Sydney | 741 |  |
| 19 | [Chris O'Brien Lifehouse](https://www.tamtam.ai/c/chris-o-brien-lifehouse) (mylifehouse.org.au)<br>A not-for-profit cancer hospital offering comprehensive care, advanced treatments, holistic support, and cutting-edge research to improve patient outcomes and experiences | Hospitals and Health Care | 🇦🇺 Sydney | 638 | 2009 |
| 20 | [Macquarie University Hospital](https://www.tamtam.ai/c/macquarie-university-hospital) (mqhealth.org.au)<br>Private not-for-profit teaching hospital on university campus, focused on combining knowledge and expertise for comprehensive patient care with latest technology and therapeutic design principles | Hospitals and Health Care | 🇦🇺 Sydney | 626 | 2010 |
| 21 | [Arriba Group](https://www.tamtam.ai/c/arriba-group) (arribagroup.com.au)<br>A group of companies providing rehabilitation, employment, and disability support services to help individuals recover, succeed, and achieve their goals | Wellness and Fitness Services | 🇦🇺 Sydney | 617 | 2020 |
| 22 | [Whiddon](https://www.tamtam.ai/c/whiddon) (whiddon.com.au)<br>A not-for-profit organization providing award-winning aged care services in NSW and QLD, focusing on individual needs and community connections | Hospitals and Health Care | 🇦🇺 Sydney | 611 | 1947 |
| 23 | [IPN Medical Centres](https://www.tamtam.ai/c/ipn-medical-centres) (ipn.com.au)<br>A network of general practices across Australia, providing high-quality patient care with a team of healthcare professionals, offering services in various locations | Medical Practices | 🇦🇺 Sydney | 576 | 2000 |
| 24 | [Oscar Wylee](https://www.tamtam.ai/c/oscar-wylee) (oscarwylee.com.au)<br>National chain of optometry stores offering quality, fashionable eyewear at affordable prices Committed to expansion, dedicated service, and continuous improvement for patients | Retail | 🇦🇺 Sydney | 571 | 2012 |
| 25 | [St Vincent's Private Hospital Sydney](https://www.tamtam.ai/c/st-vincent-s-private-hospital-sydney) (svph.org.au)<br>A leading private hospital offering compassionate care, education, research, and professional growth opportunities, with a focus on innovation and excellence | Hospitals and Health Care | 🇦🇺 Sydney | 549 | 1909 |
| 26 | [Healthe Care](https://www.tamtam.ai/c/healthe-care) (healthecare.com.au)<br>One of Australia's top private hospital operators, focusing on positive patient experiences and outcomes, with locations in major cities and regional areas | Hospitals and Health Care | 🇦🇺 Sydney | 546 | 2005 |
| 27 | [CatholicCare Sydney](https://www.tamtam.ai/c/catholiccare-sydney) (catholiccare.org)<br>Social services agency providing support to individuals, families, and communities in Sydney, promoting dignity, strengthening families, and connecting communities in solidarity | Non-profit Organizations | 🇦🇺 Sydney | 521 | 1941 |
| 28 | [Ability Action Australia](https://www.tamtam.ai/c/ability-action-australia) (abilityactionaustralia.com.au)<br>Provider of NDIS registered therapeutic, behavior, and employment supports, offering tailored assessments and therapy services to improve capabilities and achieve goals | Hospitals and Health Care | 🇦🇺 Sydney | 489 | 2019 |
| 29 | [Coal Services Pty Limited](https://www.tamtam.ai/c/coal-services-pty-limited) (coalservices.com.au)<br>An industry organization providing health, safety, environment, and insurance solutions to the NSW coal mining industry, supporting workers, employers, and communities | Mining | 🇦🇺 Sydney | 459 |  |
| 30 | [Altius](https://www.tamtam.ai/c/altius-sydney) (altius.au)<br>Comprehensive workplace health and wellbeing solutions addressing physical, psychological, and social needs to enhance employee resilience, safety, and performance. | Hospitals and Health Care | 🇦🇺 Sydney | 411 |  |

## 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.

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## The same list elsewhere in Australia

- [Healthcare providers in Australia](https://www.tamtam.ai/l/healthcare-providers-australia) (397)
- [Healthcare providers in New South Wales](https://www.tamtam.ai/l/healthcare-providers-new-south-wales) (132)
- [Healthcare providers in Victoria](https://www.tamtam.ai/l/healthcare-providers-victoria) (116)
- [Healthcare providers in Queensland](https://www.tamtam.ai/l/healthcare-providers-queensland) (68)
- [Healthcare providers in Western Australia](https://www.tamtam.ai/l/healthcare-providers-western-australia) (37)
- [Healthcare providers in South Australia](https://www.tamtam.ai/l/healthcare-providers-south-australia) (31)
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## The same list elsewhere

- [Healthcare providers in the world](https://www.tamtam.ai/l/healthcare-providers-in-the-world) (16,037)

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Source: https://www.tamtam.ai/l/healthcare-providers-sydney