CRL vs ASR Comparison

Charles River Laboratories was founded in 1947 and is a leading provider of drug discovery and development services. The company's research model & services segment is the leading provider of animal models for laboratory testing, which breeds and delivers animal research models with specific genetic characteristics for preclinical studies around the world. The discovery & safety assessment segment includes services required to take a drug through the early development process, including discovery services. The manufacturing support segment includes microbial solutions, which provides in vitro (non-animal) testing products, biologics testing services, and avian vaccine services.

Grupo Aeroportuario del Sureste SAB de CV and its subsidiaries hold concessions to operate, maintain, and develop airports in the southeast region of Mexico. As an operator of airports, it charges airlines, passengers, and other users fees for using the airports' facilities. The group also derives rental and other income from commercial activities conducted at its airports, such as the leasing of space to restaurants and retailers. The company's operating segments are Cancun, which generates majority revenue, Aerostar, Airplan, Merida, Villahermosa, Holding and Services, and Others.