While the research of dyadic business relationships is often dedicated to measuring and evaluating the dependence between actors as a unidirectional phenomenon, it is sometimes referred to as a bi‐directional issue of importance in the management of a firm’s business relationships. A unidirectional measurement and evaluation of the dependence in a specific dyadic business relationship is not always sufficient to understand the existing dependence between two actors and instead a bi‐directional approach may be required. Furthermore, there is a lack of a formalised and structured procedure in order to measure and evaluate the mutual dependence in such a relationship. Therefore, this article introduces a dependence application of the perceptual bi‐directionality‐method, i.e. the PBD‐method, in order to measure and evaluate the mutual dependence in dyadic business relationships.