| AMERICAN MARINE UNDERWRITERS, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Jun 17, 1961 | Active |
| NATIONAL CASUALTY COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Nov 28, 1925 | Inactive |
| NATIONWIDE AFFINITY INSURANCE COMPANY OF AMERICALocation not reported, FL · Active | Location not reported, FL | Corporation | May 15, 1926 | Active |
| NATIONWIDE GENERAL INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Dec 23, 1959 | Active |
| NATIONWIDE ASSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Nov 20, 1979 | Active |
| NATIONWIDE PROPERTY AND CASUALTY INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Sep 11, 1981 | Active |
| THI HOLDINGS (DELAWARE), INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Dec 17, 2004 | Inactive |
| VICTORIA AUTOMOBILE INSURANCE COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Nov 7, 2006 | Inactive |
| TITAN AUTO INSURANCE OF NEW MEXICO, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 4, 2007 | Inactive |
| DEPOSITORS INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Oct 15, 2007 | Active |
| AMCO INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Oct 17, 2007 | Active |
| TITAN INSURANCE COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Dec 12, 2008 | Inactive |
| HARLEYSVILLE WORCESTER INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Oct 1, 2009 | Active |
| HARLEYSVILLE INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Oct 6, 2009 | Active |
| HARLEYSVILLE PREFERRED INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Oct 6, 2009 | Active |
| FREEDOM SPECIALTY INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Oct 7, 2009 | Active |
| SCOTTSDALE INSURANCE COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | May 26, 2010 | Inactive |
| ALLIED INSURANCE COMPANY OF AMERICALocation not reported, FL · Active | Location not reported, FL | Corporation | Nov 1, 2012 | Active |
| CRESTBROOK INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Nov 1, 2012 | Active |
| VICTORIA SELECT INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Mar 29, 1995 | Active |
| NATIONWIDE AGRIBUSINESS INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Jun 19, 1996 | Active |
| FARMLAND MUTUAL INSURANCE COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 19, 1996 | Inactive |
| NATIONWIDE INSURANCE COMPANY OF FLORIDALocation not reported, FL · Active | Location not reported, FL | Corporation | Nov 23, 1998 | Active |
| NATIONWIDE INSURANCE COMPANY OF AMERICALocation not reported, FL · Active | Location not reported, FL | Corporation | Aug 5, 1985 | Active |
| VICTORIA FIRE & CASUALTY COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Oct 25, 1988 | Active |
| TITAN INDEMNITY COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | May 9, 1989 | Inactive |
| ALLIED PROPERTY AND CASUALTY INSURANCE COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 5, 1991 | Inactive |
| SCOTTSDALE INDEMNITY COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Feb 3, 1992 | Active |