Aetna, headquartered in Hartford, Connecticut, is one of the leading diversified health benefits companies in the States. (simplyinsured.com)
Humana, headquartered in Louisville, Kentucky, is a publicly traded health benefits company. (simplyinsured.com)
Anthem, Inc. is the nation's leading health benefits company serving the needs of approximately 40 million medical members nationwide. (careerbuilder.com)