MedCentral Health System
- A non-profit health system in North Central Ohio comprised of three general, acute care hospitals: Mansfield, Crestline and Shelby, and other health centers.
- http://www.medcentral.org/

Kettering Medical Center Network
- A comprehensive health care network. Network programs and services, education and opportunities and Affiliate links are featured on the website. (Dayton)
- http://www.kmcnetwork.org/

Deaconess Associations Incorporated
- Offering products and services through a spectrum of independent healthcare companies in Ohio.
- http://www.deaconessassociations.com

Summa Health System
- Information on the health services, calendar of events, community and medical education, research and information on the numerous health care facilities. (Akron, Ohio)
- http://www.summahealth.org

OhioHealth
- A not-for-profit organization of hospitals and healthcare services including Riverside Methodist Hospital, Grant Medical Center, and Doctors Hospital in Columbus.
- http://www.ohiohealth.com/

Mount Carmel
- The second largest healthcare system in central Ohio with hospitals, surgery centers, outpatient centers, in-home services, physician offices.
- http://www.mountcarmelhealth.com

MetroHealth System
- Information on the healthcare facilities of the system. Includes a virtual tour, directory listing, and search function. (Cleveland, Ohio)
- http://www.metrohealth.org/

Licking Memorial Health Systems
- A not-for-profit healthcare organization. Information on the facilities, services, health, news, and events. (Ohio)
- http://www.lmhealth.org

Humility of Mary Health Partners
- An integrated health system providing a full spectrum of health care services. (Youngstown, Ohio)
- http://www.hmpartners.org

Forum Health
- Providing medical services at nearly 30 locations throughout Mahoning, Trumbull and Columbiana counties. The third largest integrated health care delivery system in northeast Ohio.
- http://www.forumhealth.org

Cleveland Clinic Health System
- The System is led by The Cleveland Clinic Foundation. The member hospitals of the system are among Northeast Ohio's most trusted names in medical care.
- http://www.cchs.net