Established in 1973, Horizon Benefits Group is a health insurance specialist and provides group and individual insurance services. It offers a wide range of insurance coverage, such as life insurance, business plans, dental plans and health plans. Based in Phoenix, Ariz., Horizon Benefits Group s partners include UnitedHealthcare, Blue Cross Blue Shield of Arizona, Aetna, Human Health and Health Net, John Alden, GreatWest Healthcare, VSP, Principal Financial Group and Metlife. Some of the other firms that carry its products include Mayoclinic.com, Nationwide Health Plans, John Hancock and Eye Care Direct.