| HARTFORD ACCIDENT AND INDEMNITY COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Jul 6, 1915 | Active |
| TWIN CITY FIRE INSURANCE COLocation not reported, FL · Active | Location not reported, FL | Corporation | May 24, 1923 | Active |
| HARTFORD CASUALTY INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Jan 2, 1930 | Active |
| HARTFORD FIRE INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Feb 3, 1930 | Active |
| HARTFORD LIFE AND ACCIDENT INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Dec 28, 1967 | Active |
| HARTFORD INSURANCE COMPANY OF THE MIDWESTLocation not reported, FL · Active | Location not reported, FL | Corporation | Nov 12, 1981 | Active |
| NAVIGATORS INSURANCE SERVICES OF FLORIDA, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Feb 7, 2006 | Active |
| MAXUM CASUALTY INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Dec 9, 2008 | Active |
| MAXUM INDEMNITY COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Mar 25, 2009 | Active |
| HARTFORD INSURANCE COMPANY OF THE SOUTHEASTLocation not reported, FL · Active | Location not reported, FL | Corporation | Feb 10, 2011 | Active |
| NUTMEG INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Nov 15, 2012 | Active |
| MAXUM SPECIALTY SERVICES CORPORATIONLocation not reported, FL · Active | Location not reported, FL | Corporation | Aug 18, 2015 | Active |
| MALLEN TRUCKING, INC.Homestead, FL · Inactive | Homestead, FL | Corporation | Jul 15, 1982 | Inactive |
| TRUMBULL INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Jul 21, 1995 | Active |
| PROPERTY AND CASUALTY INSURANCE COMPANY OF HARTFORDLocation not reported, FL · Active | Location not reported, FL | Corporation | Jul 21, 1995 | Active |
| SENTINEL INSURANCE COMPANY, LTD.Location not reported, FL · Active | Location not reported, FL | Corporation | Dec 20, 1999 | Active |
| OFF THE BATTLEFIELD FOUNDATION, INC.Orlando, FL · Active | Orlando, FL | Nonprofit | Jan 18, 2024 | Active |
| HARTFORD UNDERWRITERS INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Oct 19, 1988 | Active |