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 Is SelectQuote insurance legit? Post Navigation Previous How do I contact TRICARE by provider?Next What type of plan is Tufts Health Direct? More Stories HEALTH Why is Allstate the worst company? InsuNews May 23, 2022 HEALTH Why is WPS Office free? InsuNews May 23, 2022 HEALTH Which home insurance company has the lowest complaint index? InsuNews May 23, 2022