DGX vs TU Comparison

Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the US. 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.

Telus is one of the Big Three wireless service providers in Canada, with over 10 million mobile phone subscribers nationwide constituting almost 30% of the total market. It is the incumbent local exchange carrier in the western Canadian provinces of British Columbia and Alberta, where it provides internet, television, and landline phone services. It also has a small wireline presence in eastern Quebec. Mostly because of recent acquisitions, more than 20% of Telus' sales now come from nontelecom businesses, most notably in the international business services, health, security, and agriculture industries. The firm has a 55% economic stake in Telus International.