This excerpt taken from the NDAQ DEF 14A filed Apr 3, 2009.
Role of Compensation Consultant
During 2008, the management compensation committee did not engage an outside compensation consultant to assist with our executive compensation program. As discussed above, NASDAQ OMXs human resources department engages Hewitt Associates to assist staff in making recommendations to the committee about our executive compensation program. At the invitation of the committee, Hewitt Associates occasionally attends committee meetings. However, the advice of Hewitt is just one of many factors that the committee considers in its deliberations and in making compensation decisions.