The Santa Fe Institute (SFI) is an independent, nonprofit theoretical research institute located in Santa Fe (New Mexico, United States) and dedicated to the multidisciplinary study of the fundamental principles of complex adaptive systems, including physical, computational, biological, and social systems.
The Institute houses a small number of resident faculty, who collaborate with many affiliated and visiting scholars. Although theoretical scientific research is the Institute's primary focus, it hosts a number of complex systems summer schools, internships, and other educational programs throughout the year.
The Institute's annual funding is derived primarily from private donors, grant-making foundations, government science agencies, and companies affiliated with its Business Network
More information on the Wikipedia page 
The website is