 Medibank Medibank Private Limited | Medibank, ahm | Anyone | 26.5% | For-profit | Docklands, VIC |
| Bupa | Anyone | 25.5% | For-profit | Melbourne, VIC |
 HCF The Hospitals Contribution Fund of Australia Ltd | HCF, RT HealthRT Health merged into HCF in 2021; the RT Health brand continues. | Anyone | 12.8% | Not-for-profit | Sydney, NSW |
| nib, GU Health, ING, Qantas Health Insurance, Real Health Insurance, Seniors Health Insurance, AAMI Health Insurance, Apia Health Insurance, Suncorp Health Insurance | Anyone | 9.8% | For-profit | Newcastle, NSW |
| HBF, see-u by HBF, Queensland Country Health FundBought CUA Health in 2021 (now see-u by HBF); Queensland Country Health Fund joined HBF on 1 July 2023. | Anyone | 7.9% | Not-for-profit | Perth, WA |
 Teachers Health Teachers Federation Health Ltd | Teachers Health, Nurses & Midwives Health, UniHealth, TUH, Union HealthNurses & Midwives Health merged in on 1 January 2022; TUH merged in on 1 July 2025. | Current or former members of eligible unions (education, nursing and others) and their families. | 2.6% | Not-for-profit | Sydney, NSW |
 Australian Unity Australian Unity Health Limited | Australian Unity | Anyone | 2.1% | For-profit | Melbourne, VIC |
| GMHBA, Frankhealth.com.au policies moved to Frank in July 2021. Has an agreement to take over Reserve Bank Health Society, expected early 2027 subject to approval. | Anyone | 2.1% | Not-for-profit | Geelong, VIC |
 Defence Health Defence Health Limited | Defence Health | Current or former ADF members, Defence employees and suppliers, and their families. | 1.9% | Not-for-profit | Melbourne, VIC |
 CBHS CBHS Health Fund Limited | CBHSCBHS Corporate Health merged into CBHS on 1 June 2026. | Current or former Commonwealth Bank Group employees and their families, and former CBHS Corporate members. | 1.4% | Not-for-profit | Parramatta, NSW |
| Westfund | Anyone | 0.9% | Not-for-profit | Lithgow, NSW |
 Latrobe Health Latrobe Health Services Limited | Latrobe Health | Anyone | 0.7% | Not-for-profit | Newborough, VIC |
 HIF Health Insurance Fund of Australia Limited | HIF | Anyone | 0.6% | Not-for-profit | Perth, WA |
 Doctors' Health Fund The Doctors' Health Fund Pty Ltd | Doctors' Health Fund | Medical and listed allied health practitioners, students, their staff and families. | 0.6% | For-profit | Sydney, NSW |
 Health Partners Health Partners Limited | Health Partners | Anyone | 0.6% | Not-for-profit | Adelaide, SA |
 Police Health Police Health Limited | Police HealthRetired its Emergency Services Health brand in 2026. | The police community: serving and former officers, employees, volunteers and their families. | 0.6% | Not-for-profit | Adelaide, SA |
 St.Lukes Health St Luke's Medical and Hospital Benefits Association | St.Lukes Health, Astute Simplicity Health | Anyone | 0.6% | Not-for-profit | Launceston, TAS |
 AIA Health AIA Health Insurance Pty Ltd | AIA HealthReplaced myOwn, which closed to new business in March 2020. | Anyone | 0.5% | For-profit | Melbourne, VIC |
 Peoplecare Peoplecare Health Limited | Peoplecare | Anyone | 0.5% | Not-for-profit | Wollongong, NSW |
 Navy Health Navy Health Ltd | Navy Health | The ADF community, Defence civilians and contractors, cadets, and their families. | 0.4% | Not-for-profit | Surrey Hills, VIC |
 Mildura Health Fund Mildura District Hospital Fund Ltd | Mildura Health Fund | Anyone | 0.3% | Not-for-profit | Mildura, VIC |
 Phoenix Health Fund Phoenix Health Fund Limited | Phoenix Health Fund | Anyone | 0.2% | Not-for-profit | Newcastle, NSW |
 onemedifund National Health Benefits Australia Pty Ltd | onemedifund | Anyone | 0.1% | For-profit | Sydney Olympic Park, NSW |
 HCi Health Care Insurance Ltd | HCi | Anyone | 0.1% | Not-for-profit | Burnie, TAS |
 ACA Health ACA Health Benefits Fund Limited | ACA Health | Seventh-day Adventist Church employees, local church officers and their families. | 0.1% | Not-for-profit | Wahroonga, NSW |
 RBHS Reserve Bank Health Society Ltd | RBHSAgreed to merge into GMHBA, expected early 2027 subject to approval. | Current or former Reserve Bank and Note Printing Australia employees and their families. | under 0.1% | Not-for-profit | Wollongong, NSW |
 Hunter Health Insurance Cessnock District Health Benefits Fund Limited | Hunter Health Insurance | Anyone | under 0.1% | Not-for-profit | Cessnock, NSW |