This excerpt taken from the XRX 10-K filed Feb 15, 2008.
Subsidiaries of Xerox Corporation
The following companies are subsidiaries of Xerox Corporation as of December 31, 2007. Unless otherwise noted, a subsidiary is a company in which Xerox Corporation or a subsidiary of Xerox Corporation holds 50% or more of the voting stock. The names of other subsidiaries have been omitted as they would not, if considered in the aggregate as a single subsidiary, constitute a significant subsidiary: