HEALTH Are CoreSource and Trustmark the same? InsuNews May 23, 2022 Are CoreSource and Trustmark the same? CoreSource, Inc. is a subsidiary of Trustmark Mutual Holding Company. See also When did Gail Boudreaux join Anthem? Post navigation Previous: Is Trustmark part of Cigna?Next: Who owns Trustmark health benefits? More Stories HEALTH What is the fine for not having health insurance in Wisconsin? InsuNews May 23, 2022 HEALTH When did WPS start selling Medicare supplement plans? InsuNews May 23, 2022 HEALTH Which countries do not have free healthcare? InsuNews May 23, 2022