TSCO vs DGX Comparison

Tractor Supply is the largest operator of retail farm and ranch stores in the United States. The company targets recreational farmers and ranchers and has little exposure to commercial and industrial farm operations. Currently, the company operates 2,395 of its namesake banners in 49 states, along with 207 Petsense by Tractor Supply stores. Stores are generally concentrated in rural communities rather than urban and suburban areas. In fiscal 2025, revenue consisted primarily of livestock, equine & agriculture (around 30%), companion animal (25%), and seasonal & recreation (around 25%).

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.