EX-21.01 7 dex2101.htm SUBSIDIARIES OF THE REGISTRANT Subsidiaries of the Registrant

EXHIBIT 21.01

CSG Systems International, Inc.

Subsidiaries of the Registrant

As of December 31, 2009

 

Subsidiary

    State or Country
of Organization

ComTecnet, Incorporated

    New Jersey

DataProse, Inc.

    California

CSG Systems, Inc.

    Delaware

CSG Services, Inc.

    Delaware

CSG Interactive Messaging, Inc.

    Delaware

CSG International Holdings, LLC

    Delaware

CSG Media, LLC

    Delaware

Telution, Inc.

    Delaware