AON vs ELV Comparison

Aon is a leading global provider of insurance and reinsurance brokerage and human resources solutions. Its operations are tilted toward its brokerage operations. Headquartered in London, Aon has about 50,000 employees and operations in over 120 countries.

Elevance Health remains one of the leading health insurers in the US, providing medical benefits to 46 million medical members as of June 2025. The company offers employer, individual, and government-sponsored coverage plans. Elevance differs from its peers in its unique position as the largest single provider of Blue Cross Blue Shield branded coverage, operating as the licensee for the Blue Cross Blue Shield Association in 14 states. Through acquisitions, such as the Amerigroup deal in 2012 and MMM in 2021, Elevance's reach expands beyond those states through government-sponsored programs, such as Medicaid and Medicare Advantage plans, too. It is also an emerging player in pharmacy benefit management and other healthcare services.