Buy a Columbia Southern University diploma. Order a Columbia Southern University degree. I want to get a Columbia Southern University degree and transcript. Columbia Southern University (CSU) is a private, comprehensive higher education institution located in Orange Beach, Alabama, USA. CSU is dedicated to cultivating professionals and business leaders capable of meeting the needs of modern society. The university offers academic programs at the undergraduate, master’s, and doctoral levels, with Business Administration being the most popular major. Other notable programs include Occupational Safety and Health Technology, Criminal Justice and Law Enforcement Management, Fire and Fire Science, and Disaster and Crisis Emergency Management.