 Deitz remained with the firm in New York City upon its takeover by Credit Suisse, becoming managing director at Credit Suisse Financial Products in 1993.In 1994, he moved to London and then Moscow to establish the derivatives unit's presence in Eastern Europe.In 1995, Deitz left Credit Suisse together with several colleagues to co-found the investment bank, Renaissance Capital, in Moscow where he ran the firm's fixed income trading business.