The XC Software has been made possible through the generous support of the Andrew W. Mellon foundation. The Mellon foundation has been a supporter of each phase of the XC software, from concept through reality.
River Campus Libraries at the University of Rochester has been a large contributer to the creation of the XC software. They are a founding sponsor of the XCO and also providing the home for XCO staff.
The University of North Carolina – Charlotte, J. Murrey Atkins Library is a founding partner of the XCO. In addition, they are working on integrating XC with the Innovative Interfaces Millenium ILS.