The University of Phoenix (UPX) is a for-profit educational institution that specializes in adult education. The largest private university in North America, it has an enrollment of more than 345,300 students. The school was founded in 1976 by Dr. John Sperling and is owned by the Apollo Group, Inc. The university has more than 200 campuses offering more than 100 degree programs at the associate\'s, bachelor\'s, master\'s and doctoral levels in various fields of study.