High Quality Content by WIKIPEDIA articles! Dean Witter Reynolds was an American stock brokerage and securities firm catering to retail clients. Prior to its acquisition, it was among the largest retail firms in the securities industry with over 9,000 account executives (ranking third in the US in 1996) and was among the largest members of the New York Stock Exchange. The company served over 3.2 million clients primarily in the U.S. Dean Witter provided debt and equity underwriting and brokerage as well as mutual funds and other saving and investment products for individual investors. The company`s asset management arm, Dean Witter InterCapital, with total assets of $90.0 billion prior to acquisition was one of the largest asset management operations in the U.S.