The new head of HR is Doug Reeve, who will also retain his existing job as chief of staff at the Luxembourg-based company.
The last HR head, Robert Massol, was suspended by the company last month, together with Clearstream's president, Andre Lussi, and Carlos Salvatori, a senior director of the firm. It also emerged that Lussi's step-daughter, Caroline Wiget, was working in the firm's HR department.
A company spokesman said that Massol remained suspended and that while investigations into the money-laundering allegations continued, "in the intervening period, it makes sense to make the appointment" of Reeve.
The investigations, by the Luxembourg authorities, were prompted by the publication of the book Revelation$ written by Ernest Backes, a French journalist and a former Clearstream insider.