CRL vs ATR 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.

Headquartered in Crystal Lake, Illinois, AptarGroup is a leading global supplier of dispensing systems such as aerosol valves, pumps, closures, and elastomer packaging components to the consumer goods and pharmaceutical markets. With the bulk of its annual net sales coming from Europe (49% of sales) and the United States (32%), Aptar aims to increase its presence in Asia (11%) and Latin America (8%). It operates three business segments, Pharma, Beauty, and Closures. Pharma generates over two thirds of group profits.