DLJ Merchant Banking Partners, a US private equity investment affiliate of Credit Suisse, has named Nicole Arnaboldi as chairman of DLJ MBP and its investment committee.

This expansion of her responsibilities is in addition to her current role as co-head of Illiquid Alternatives, along with Steve Kantor.

Four DLJ MBP senior partners - Ed Johnson, Kamil Salame, Susan Schnabel and Colin Taylor - will report directly to Ms Arnaboldi and will together form DLJ MBP's management committee.

Steven Rattner, formerly the head of DLJ MBP, has retired after more than 20 years at the bank.