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Insurance - Diversified companies

4 companies in Insurance - Diversified (Financial Services), largest first — what each does and how it makes money.

• Berkshire HathawayBRK-B3-min book

  Diversified conglomerate spanning insurance, railroads, utilities, manufacturing and retail

• American InternationalAIG3-min book

  Global insurer covering businesses, institutions and individuals

• Hartford InsuranceHIG3-min book

  U.S. insurer offering business, personal, group benefits and mutual funds

• Arch CapitalACGL3-min book

  Bermuda-based specialty insurer, reinsurer, and mortgage insurance provider