Top UK insurance companies


The National Health Service is the publicly funded healthcare system in England, and one of the four National Health Service systems in the United Kingdom.

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  • FounderAneurin Bevan
  • FoundedJuly 5, 1948, England, United Kingdom
  • Employees1,226,677 FTE (March 2022)
  • Annual budget£190.3 billion (2022)


Aon PLC is a global professional services and management consulting firm that offers a range of risk-mitigation products, including commercial risk, investment, wealth, health, human capital, and reinsurance solutions.

  • Stock priceAON (NYSE) $314.40 -11.27 (-3.46%)
  • CEOGregory C. Case (Apr 4, 2005–)
  • HeadquartersLondon, United Kingdom
  • Revenue12.48 billion USD (2022)
  • FoundersPat Ryan, W. Clement Stone
  • Founded1982, Chicago, Illinois, United States

American International Group AIG

American International Group, Inc. is an American multinational finance and insurance corporation with operations in more than 80 countries and jurisdictions. As of January 1, 2019, AIG companies employed 49,600 people.

  • Stock priceAIG (NYSE) $55.77 +1.81 (+3.35%)
  • CEOPeter Zaffino (Mar 1, 2021–)
  • SubsidiariesAIG Property Casualty Inc., VALIC, TATA AIG, MORE
  • HeadquartersNew York, New York, United States
  • FounderCornelius Vander Starr