This paper is an expansion and an updating of a major survey conducted in 1970 by the journal, Scientific American. Entitled How Industry Buys, 1970. That study was designed to measure the influence of ten major groups on the purchasing decision. The study was conducted among the readership of the journal, distributed among 11 major industries, including the chemical industry. The audience consisted of the readership of the journal, with a heavy emphasis on scientific and technical personnel, many of whom worked in large companies.