Research analyst L.F. Rothschild, New York City, 1955—1960. Manager Eastern Division Midwest Technology Development Corporation, Minneapolis, 1961—1962. Associate Technological Investors, New York City, 1962—1963.
Director research Kalb Voorhis & Company, since 1963. With Army of the United States, 1956-1958.
Board directors Planned Parenthood of Bergen County, 1982—1988. Member of Finance Analysts Federation, New York Society Security Analysts, Institute of Electrical and Electronics Engineers, German Wine Society New York (board directors 1981-1988), International Wine and Food Society (board directors New York chapter since 1980), Computer Analyst Group, Communications Analysts, Electo Science Analysts (past president), Electronic Analyst Group.