MAP20210005572 World's largest insurers / A.M Best Company 2 p. . — (Best's Rankings ; December 28, 2020) Top 25 insurers ranked by 2019 non-banking assets -- Top 25 insurers ranked by 2019 net premiums written 1. Ranking . 2. Mercado de seguros . 3. Grupos aseguradores . 4. Empresas de seguros . 5. Suscripción de riesgos . 6. Primas . I. A.M. Best Company . II. Best's Rankings . III. Título.