| ST. JOHNS CIN, LLCSt. Augustine, FL · Active | St. Augustine, FL | LLC | Jun 14, 2010 | Active |
| HEALTHY VOYAGER HOLDINGS LLCHollywood, FL · Active | Hollywood, FL | LLC | Sep 16, 2020 | Active |
| FLAGLER PROFESSIONAL HEALTH CARE SERVICES, INC.St. Augustine, FL · Active | St. Augustine, FL | Nonprofit | Jan 19, 2024 | Active |
| CF MANAGEMENT ADMINISTRATIVE COMPANY, LLCSt. Augustine, FL · Inactive | St. Augustine, FL | LLC | Sep 19, 2019 | Inactive |
| FLAGLER HEALTH ENTERPRISE, LLCSt. Augustine, FL · Active | St. Augustine, FL | LLC | May 17, 2017 | Active |
| FLAGLER HEALTH NETWORK, LLCSt. Augustine, FL · Active | St. Augustine, FL | LLC | May 17, 2017 | Active |
| FLAGLER HOME CARE, LLCSt. Augustine, FL · Active | St. Augustine, FL | LLC | Apr 6, 2017 | Active |
| FIRST COAST HEALTH ALLIANCE, LLCSt. Augustine, FL · Active | St. Augustine, FL | LLC | May 1, 2013 | Active |
| OUTPATIENT SURGERY CENTER OF ST. AUGUSTINE, LLCSt. Augustine, FL · Inactive | St. Augustine, FL | LLC | Dec 27, 2004 | Inactive |
| FLAGLER HOSPITAL, INC.St. Augustine, FL · Active | St. Augustine, FL | Nonprofit | May 12, 1906 | Active |
| R.N. SPECIALISTS, INC.Miami, FL · Inactive | Miami, FL | Corporation | Mar 20, 2002 | Inactive |
| FLAGLER HEALTH SERVICES, INC.St. Augustine, FL · Inactive | St. Augustine, FL | Corporation | Jan 31, 1985 | Inactive |
| KAYAN RENTALS LLCPlantation, FL · Inactive | Plantation, FL | LLC | Aug 28, 2007 | Inactive |
| CAROLYN'S HOME HEALTH CARE CO.St. Petersburg, FL · Inactive | St. Petersburg, FL | Corporation | Feb 23, 1990 | Inactive |
| FLAGLER HEALTH CARE FOUNDATION, INC.St. Augustine, FL · Active | St. Augustine, FL | Nonprofit | Apr 17, 1984 | Active |
| NORTHSIDE NEIGHBORHOOD COUNCIL, INC.Palatka, FL · Inactive | Palatka, FL | Nonprofit | Sep 27, 2004 | Inactive |
| ST. JOHNS CARE CONNECT, INC.Saint Augustine, FL · Inactive | Saint Augustine, FL | Nonprofit | Aug 1, 2017 | Inactive |
| HEALTH PARK OWNERS ASSOCIATION, INC.St. Augustine, FL · Active | St. Augustine, FL | Nonprofit | Sep 28, 1987 | Active |
| THE ANDERSON GIBBS CONDOMINIUM ASSOCIATION, INC.St. Augustine, FL · Inactive | St. Augustine, FL | Nonprofit | Jul 19, 1993 | Inactive |
| FLAGLER PROFESSIONAL HEALTH CARE SERVICES, INC.Saint Augustine, FL · Inactive | Saint Augustine, FL | Corporation | Oct 6, 2016 | Inactive |
| FIRST COAST HEART AND VASCULAR AT FLAGLER HEALTH+, INC.St. Augustine, FL · Inactive | St. Augustine, FL | Corporation | Jul 7, 2022 | Inactive |
| BCDZ, INC.St. Petersburg, FL · Inactive | St. Petersburg, FL | Corporation | Apr 28, 1993 | Inactive |
| CATO CUSTOMS, INC.Wildwood, FL · Inactive | Wildwood, FL | Corporation | Dec 1, 1994 | Inactive |