Our Parent Company

Trustmark, the parent company of CoreSource, has been providing the kind of financial security that has helped businesses and families realize their own visions and dreams. Started as a one-desk office and fraternal benefit organization, Trustmark has grown into a family of national companies dedicated to health plans, voluntary benefits, benefit administration and population health management solutions — all while building and maintaining trust through personal service and flexible benefit solutions.

Our Mission: Helping people increase well-being through better health and greater financial security.

Providing quality customer service and maintaining product integrity for 100 years, Trustmark delivers competitive benefits and administration services to employer groups at a competitive price.

Trustmark serves employer and affinity groups, brokers and individuals through a variety of organizations. Together, these subsidiaries and operating divisions offer national access to benefits administration services and managed care, as well as life, medical, disability, critical illness and accident insurance. CoreSource is proud to be backed by a national organization with 100 years of trust and stability.

Trustmark provides freedom of choice, excellent network capabilities, personal service and active cost management. With headquarters in Lake Forest, Ill., Trustmark is and will remain a mutual insurance holding company managed for the benefit of its policyholders.

Financial Strength Ratings:

Rated A- (Excellent) by A.M. Best