With residents RTI International, IBM, the National Institute of Environmental Health Sciences, and the North Carolina Biotechnology Center, Research Triangle Park is the largest research park in the U.S. and is home to 160+ companies and organizations employing approximately 40,000+ people within an eight-mile long, two-mile wide community that is recognized as one of the country's leading technology clusters. Research Triangle Park is in close proximity to foremost academic research institutions Duke University, the University of North Carolina, and North Carolina State University, known for breakthrough life science discoveries.