| Name | Country | Market Cap (US$) |
|---|
| American Southern Home Insurance Company | United States | Private |
| American Southern Insurance Company | United States | Private |
| American Special Risk Insurance Company | United States | Private |
| American Specialty Health Insurance Company | United States | Private |
| American Specialty Health Ods of NJ | United States | Private |
| American Specialty Health Plans of California, Inc. | United States | Private |
| American Standard Insurance Company of Ohio | United States | Private |
| American Standard Insurance Company of Wisconsin | United States | Private |
| American Standard Life & Accident Insurance Company | United States | Private |
| American Standard Lloyds Insurance Company | United States | Private |
| American States Financial Corporation | United States | Private |
| American States Insurance Company | United States | Private |
| American States Insurance Company of Texas | United States | Private |
| American States Lloyds Insurance Company | United States | Private |
| American States Preferred Insurance Company | United States | Private |
| American Steamship Owners Mutual P & I Assn Inc. | United States | Private |
| American Sterling Corporation | United States | Private |
| American Sterling Insurance Company | United States | Private |
| American Strategic Insurance Corp | United States | Private |
| American Strategic Insurance Corp. | United States | Private |
| American Strategic Insurance Group | United States | Private |
| American Summit Insurance Company | United States | Private |
| American Superior Insurance Company | United States | Private |
| American Surety Company | United States | Private |
| American T & T Insurance Company Rrg | United States | Private |
| American Team Managers Insurance Services | United States | Private |
| American Traditions Insurance Company | United States | Private |
| American Transit Insurance Co Inc | United States | Private |
| American Transit Insurance Company | United States | Private |
| American Transportation Insurance Company, Incorporated | United States | Private |
| American Travelers Assurance Company | United States | Private |
| American Trucking & Transportation Insurance Co., A RRG | United States | Private |
| American Underwriters Insurance Company | United States | Private |
| American Underwriters Life Insurance Company | United States | Private |
| American Union Insurance Company | United States | Private |
| American United Mutual Insurance Holding Company | United States | Private |
| American Universal Insurance Group, Inc | United States | Private |
| American Vanguard Life Insurance Company | United States | Private |
| American Vehicle Insurance Company | United States | Private |
| American West Insurance Company | United States | Private |
| American Western Home Insurance Company | United States | Private |
| American Western Life Insurance Company | United States | Private |
| American Wholesale Insurance Group, Inc. | United States | Private |
| American Zurich Insurance Company | United States | Private |
| American-Amicable Holding Inc | United States | Private |
| American-Amicable Life Insurance Co. | United States | Private |
| Americas 1st Choice Health Plans, Inc. | United States | Private |
| Americas Insurance Company | United States | Private |
| Americas Insurance Group | United States | Private |
| Americas Surplus Lines Insurance Company | United States | Private |
| AmeriChoice of New Jersey, Inc. | United States | Private |
| AmeriChoice of New York | United States | Private |
| AmeriChoice of Pennsylvania, Inc. | United States | Private |
| Americo Financial Life and Annuity Insurance Company | United States | Private |
| Americom Life & Annuity Insurance Company | United States | Private |
| Americom Life & Annuity Insurance Company | United States | Private |
| AMERIGROUP Community Care of South Carolina, Inc. | United States | Private |
| Amerigroup Florida Inc | United States | Private |
| AMERIGROUP Florida, Inc. | United States | Private |
| AMERIGROUP Illinois, Inc. | United States | Private |
| AMERIGROUP Maryland, Inc | United States | Private |
| AMERIGROUP Nevada, Inc. | United States | Private |
| AMERIGROUP New Jersey, Inc. | United States | Private |
| AMERIGROUP South Carolina, Inc. | United States | Private |
| AMERIGROUP Texas, Inc. | United States | Private |
| Ameriguard Risk Retention Group, Inc | United States | Private |
| Amerihealth Casualty Insurance Company | United States | Private |
| Amerihealth Health Plan Inc. | United States | Private |
| Amerihealth Hmo | United States | Private |
| AmeriHealth HMO, Inc. | United States | Private |
| Amerihealth Insurance Co of Nj | United States | Private |
| Amerihealth Services, Inc | United States | Private |
| Amerin Corporation | United States | Private |
| Amerin Guaranty Corporation | United States | Private |
| Amerin Re Corporation | United States | Private |
| Amerinst Insurance Group, Ltd | Bermuda | Private |
| Ameriplan Corporation | United States | Private |
| Ameriprise Insurance Company | United States | Private |
| Amerisafe Insurance Group | United States | Private |
| Amerisure Insurance Company | United States | Private |
| Amerisure Mutual Insurance Company | United States | Private |
| Amerisure Partners Insurance Company | United States | Private |
| Amerisure, Inc. | United States | Private |
| Ameritas Life Insurance Corporation | United States | Private |
| Ameritas Variable Life Insurance Company | United States | Private |
| Ameritrust Insurance Corporation | United States | Private |
| Amersham Insurance (Norge) Limited | Republic of Ireland | Private |
| AmerUs Annuity Group | United States | Private |
| AMEV Levensverzekering N.V. | Netherlands | Private |
| AMEX Assurance Company | United States | Private |
| AmFed Casualty Insurance Company | United States | Private |
| AmFed National Insurance Company | United States | Private |
| Amfirst Insurance Company | United States | Private |
| AMGP Georgia Managed Care Comp | United States | Private |
| AMGRO, Inc. | United States | Private |
| AmGUARD Insurance Company | United States | Private |
| Ami Insurance Limited | New Zealand | Private |
| Amic Seguros Generales, S.A. | Spain | Private |
| Amica Life Insurance Company | United States | Private |
| Amica Lloyds of Texas | United States | Private |
|
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