CoreSource is a renowned third-party administrator of employee health and benefit plans, known for offering customized health insurance solutions to employers of various sizes. As a subsidiary of Trustmark Mutual Holding Company—a recognized leader in the health and wellness industry—it leverages its parent company's robust resources and expertise. CoreSource focuses on providing flexible and comprehensive insurance options that cater to the unique needs of its clients while driving cost efficiencies for employer-sponsored plans. Its suite of services encompasses a broad array of health plan administration services, analytics, and innovative solutions aimed at enhancing employee health and well-being.