This paper deals with measuring the Czech companies competitiveness based on an empirical survey made by the Research Center for the Czech Economy Competitiveness in 2007. The paper proceeds from the assumption that the company competitiveness is reflected in its financial effectiveness that is measurable by means of standard ratio indicators. The actual competitiveness results from factors of qualitative characteristics. The aim of the paper is to divide the examined companies using chosen financial indicators and statistical methods into clusters of similar companies and to find their typical qualitative characteristics. The partial aim of the paper is to find out whether there are typical characteristics of individual clusters of companies and whether these factors have different values (statistically significant) in different clusters of companies.