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Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the U.S. The company generates over 95% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,300 patient service centers, as well as multiple doctors offices and hospitals. The firm also runs a much smaller diagnostic solutions segment that provides clinical trials testing, risk assessment services, and information technology solutions.
Principal Financial Group Inc is a leader in Global investment management offering businesses, individuals and institutional clients a wide range of financial products and services, including retirement, asset management and insurance through diverse family of financial services companies. It operates in four business segments that are Retirement and Income Solutions, Principal Global Investors, Principal International, and United States Insurance Solutions. The company receives maximum revenue in the form of premiums.