The process leading to a correct setting of a competitive strategy is described. Individual steps are applied to the BENAR, a.s company that needs to set the direction of running their business after a long time of the absence of any strategic planning. At first steps and procedures leading to setting a good and functioning competitive strategy are discussed in detail. Some methods of marketing portfolio evaluation are given. The BCG and GE models are mentioned, the process of composing matrices of them is described and advantages and disadvantages of both models are evaluated. Further the assumption for the analysis of internal and external environment are given, i.e. the S.W.O.T. analysis is mentioned and also the way of constructing its ...