Marc D. Granetz, Credit Suisse's investment banking chairman, and a longtime mergers banker is leaving for another opportunity outside deal-making.  Mr. Granetz assumed the chairmanship of the investment banking division, a new role, in 2010. In that position, he spent much of his time in London building Credit Suisse’s business in Europe, the Middle East and Africa. He also focused on maintaining top client relationships.

Mr. Granetz, who previously served as the co-head of the Swiss bank’s global investment banking unit, joined what became the modern-day Credit Suisse in 1985. He rose through the ranks, eventually becoming the head of the firm’s oil and gas group, its media and telecommunications group and, in 2004, its mergers and acquisitions team. Among the deals he helped put together were Union Carbide’s $11.6 billion sale to Dow Chemical, Texaco’s $45 billion sale to Chevron and the merger of NBC and Universal.  [Dealbook 12/13/11]