CRL vs CCK 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 provide in vitro (nonanimal) testing products, biologics testing services, and avian vaccine services.

Crown Holdings Inc is a producer of metal packaging. The company manufactures beverage cans, metal food cans, and closures, as well as aerosol cans. With the purchase of Signode, the company also has a presence in a wide variety of protective transport packaging. Although it's headquartered in the United States, the vast majority of Crown's sales come from its operations in Europe, South America, and Southeast Asia.