| AMERICAN MARINE UNDERWRITERS, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Jun 17, 1961 | Active |
| NATIONWIDE AFFINITY INSURANCE COMPANY OF AMERICALocation not reported, FL · Active | Location not reported, FL | Corporation | May 15, 1926 | Active |
| NATIONWIDE LIFE INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Nov 12, 1955 | Active |
| NATIONWIDE GENERAL INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Dec 23, 1959 | Active |
| JEFFERSON NATIONAL LIFE INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Jul 23, 1965 | 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 |
| 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 |
| NATIONWIDE LIFE AND BENEFITS INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | May 13, 2008 | Active |
| 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 |
| NATIONWIDE ADVANTAGE MORTGAGE COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Feb 11, 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 |
| NATIONWIDE FINANCIAL GENERAL AGENCY, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Mar 10, 1994 | Active |
| NATIONWIDE AGRIBUSINESS INSURANCE COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Jun 19, 1996 | Active |
| NSM SALES CORPORATIONLocation not reported, FL · Active | Location not reported, FL | Corporation | Mar 11, 1997 | Active |
| NATIONWIDE INSURANCE COMPANY OF FLORIDALocation not reported, FL · Active | Location not reported, FL | Corporation | Nov 23, 1998 | Active |
| NATIONWIDE INVESTMENT ADVISORS, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jun 23, 2006 | Active |
| NATIONWIDE ASSET MANAGEMENT, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | May 25, 2007 | Active |
| NATIONWIDE FUND DISTRIBUTORS LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Dec 11, 2007 | Active |
| NATIONWIDE SECURITIES, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Aug 1, 2008 | Active |
| E-RISK SERVICES, L.L.C.Location not reported, FL · Active | Location not reported, FL | LLC | Aug 2, 2018 | Active |
| NATIONWIDE INSURANCE COMPANY OF AMERICALocation not reported, FL · Active | Location not reported, FL | Corporation | Aug 5, 1985 | Active |
| NATIONWIDE RETIREMENT SOLUTIONS, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Apr 23, 1986 | Active |
| DVM INSURANCE AGENCY, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Aug 7, 1989 | Active |
| NATIONWIDE INVESTMENT SERVICES CORPORATIONLocation not reported, FL · Active | Location not reported, FL | Corporation | May 22, 1991 | Active |