William Wishnick begins this interview by describing his parents' careers and the founding of the Wishnick-Tumpeer Chemical Company in 1920. His father's company, now called Witco, expanded with the acquisition of several domestic arid international companies and went public in 1958. After serving in the military and completing his education, Wishnick began working for the company in 1949. Wishnick served as vice president and treasurer, executive vice president, president, and chairman of the board and chief operating officer until his retirement in 1990. Wishnick discusses how the company grew with the addition of manufacturing and marketing, the purchase of other companies, and the diversification of product lines. Wishnick concludes the interview by discussing how the nature of doing business has changed over the years.