| Name | Country | Market Cap (US$) |
|---|
| APRA | Belgium | Private |
| APRA Leven n.v. | Belgium | Private |
| APRA Ongevallen n.v. | Belgium | Private |
| April Assurances | France | Private |
| APRIL SOLUTIONS | France | Private |
| Aprilia World Service B.V. | Netherlands | Private |
| APS Financial Corporation | United States | Private |
| APS Seguradora S.A. | Brazil | Private |
| APSpecialty Insurance Corporation | United States | Private |
| Apulia Assicurazioni Spa | Italy | Private |
| Apulia Previdenza Spa | Italy | Private |
| AquaGuardian Insurance Company, Inc. | United States | Private |
| Aquilo plc | United Kingdom | Private |
| Ara Casualty Insurance Co | United States | Private |
| ARA Casualty Insurance Company | United States | Private |
| Arab Investment and Export Credit Guarantee Corporation, The | Kuwait | Private |
| Arab Misr Insurance Group | Egypt | Private |
| Arab Reinsurance Company S.A.L. | Lebanon | Private |
| ARAG | Belgium | Private |
| ARAG Allgemeine Rechtsschutz-Versicherungs-Aktiengesellschaft | Germany | Private |
| ARAG Allgemeine Rechtsschutzvers. AG | Switzerland | Private |
| Arag Allgemeine Versicherungs-Ag | Germany | Private |
| ARAG Assicurazioni S.p.a. | Italy | Private |
| Arag Insurance Company Inc | United States | Private |
| Arag Krankenversicherungs-Ag | Germany | Private |
| Arag Lebensversicherungs-Ag | Germany | Private |
| ARAG Osterreich Allgemeine Rechtsschutzversicherings-AG | Austria | Private |
| ARAG, Compania Internacional de Seguros y Reaseguros, S.A. | Spain | Private |
| Arag-Nederland Algemene Rechtsbijstand Verzekeringmaatschappij | Netherlands | Private |
| Arbella Indemnity Insurance Company | United States | Private |
| Arbella Insurance Group | United States | Private |
| Arbella Protection Insurance Company, Inc | United States | Private |
| Arbetsmarknads Försäkringsaktiebolag | Sweden | Private |
| Arbor Casualty & Property Ireland Limited | Republic of Ireland | Private |
| Arc Excess & Surplus Llc | United States | Private |
| ARC MidAtlantic Excess & Surplus, Inc. | United States | Private |
| Arca Assicurazioni S.p.A. | Italy | Private |
| ARCA PATRIMOINE | France | Private |
| Arca Vita International Limited | Republic of Ireland | Private |
| Arca Vita S.P.A. | Italy | Private |
| Arcadian Health Plan of Georgia, Inc | United States | Private |
| Arcadian Health Plan Of Louisiana Inc | United States | Private |
| Arcadian Health Plan of NC, Inc | United States | Private |
| Arcalis | France | Private |
| Arces S.A. | Belgium | Private |
| Arch Chemicals B.V. | Netherlands | Private |
| Arch Excess & Surplus Insurance Company | United States | Private |
| Arch Indemnity Insurance Company | United States | Private |
| ARCH INSURANCE CO (EUROPE) LTD | United Kingdom | Private |
| Arch Insurance Company | United States | Private |
| Arch Insurance Company | United States | Private |
| Arch Insurance Company (Canada Branch) | Canada | Private |
| Arch Insurance Company (Europe) Limited | United Kingdom | Private |
| Arch Insurance Group | United States | Private |
| Arch Reinsurance Company | United States | Private |
| Arch Reinsurance Company | United States | Private |
| Arch Reinsurance Ltd | Bermuda | Private |
| Arch Specialty Insurance Company | United States | Private |
| Archer Daniëls Midland Nederland B.V. | Netherlands | Private |
| Archer Group Holdings plc | United Kingdom | Private |
| Architects and Engineers Insurance Company, Incorporated, A RRG | United States | Private |
| Arcos Dorados B.V. | Netherlands | Private |
| Area Life International Assurance Ltd | Republic of Ireland | Private |
| Areas Assurances | France | Private |
| Areas-CMA | France | Private |
| Areas-CMV | France | Private |
| ARECA Insurance Exchange | United States | Private |
| Arel Holding Heiloo B.V. | Netherlands | Private |
| Aresa Seguros Generales, S.A. | Spain | Private |
| Arete Inversiones, S.A. | Spain | Private |
| ARFIN Compagnia di Assicurazioni e Riassicurazioni S.p.A. | Italy | Private |
| Argenia Inc | United States | Private |
| Argenta Assuranties | Belgium | Private |
| Argenta-Life Nederland NV | Netherlands | Private |
| Argentina Salud y Vida Compania de Seguros S.A. | Argentina | Private |
| Argentum Beleggingen B.V. | Netherlands | Private |
| Argo Re Ltd. | Bermuda | Private |
| Argonaut Great Central Insurance Company | United States | Private |
| Argonaut Group, Inc. | United States | Private |
| Argonaut Insurance Company | United States | Private |
| Argonaut Insurance Company Inc | United States | Private |
| Argonaut Insurance Company, Inc | United States | Private |
| Argonaut Insurance Group | United States | Private |
| Argonaut Limited Risk Insurance Company | United States | Private |
| Argonaut-Midwest Insurance Company | United States | Private |
| Argonaut-Southwest Insurance Company | United States | Private |
| Argos Compania Argentina de Seguros Generales S.A. | Argentina | Private |
| Argos Mutual de Seguros del Transporte Publico de Pasajer | Argentina | Private |
| Argosz Biztosito Rt | Hungary | Private |
| ARGOVIE | France | Private |
| Argus Insurance Inc | United States | Private |
| Arheca Holding B.V. | Netherlands | Private |
| ARI Casualty Company | United States | Private |
| ARI Indemnity Company | United States | Private |
| ARI Insurance Group | United States | Private |
| ARI Mutual Insurance Company | United States | Private |
| Arias Acquisitions, Inc. | United States | Private |
| Ariel Holdings Ltd | Bermuda | Private |
| Ariel Reinsurance Co Ltd | Bermuda | Private |
| Aries Insurance Company | United States | Private |
|
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