ABSTRACTThe objective of this research is to contribute to the understanding of the decision making process within the professional service provider/client relationship. Although the role of the client or customer is acknowledged to be of importance in professional services marketing, an extensive search has found that a gap exists in the literature regarding the relative influences of the client and the professional service provider in decision making. This paper develops a conceptual model of the relative influences in purchase decision making within a professional service provider/client relationship.