This excerpt taken from the GVHR 10-K filed Mar 16, 2007.
EPIX Acquisition. On March 26, 2004, the Company acquired the HR outsourcing client portfolio of EPIX and certain of its subsidiaries. The transaction was accomplished by an assignment from EPIX (and its subsidiaries) to the Company of all of its client service agreements, which covered approximately 2,000 clients and approximately 30,000 client employees. See further information at Note 8 to the consolidated financial statements.