Milk processing industry in Poland is one of the biggest production potentials in the national food industry. It is a sector of strong globalisation pressure and increasing competition. Since the beginning of the transformation period, milk processing industry has undergone changes of entitative structure. As a result of market transformations, many unprofitable units are liquidated. In cases when further development is predicted, the firms are taken over by stronger companies as a result of restructuring and privatization processes. This study aims at the presentation of the consolidation of companies in the milk market. Thus, the article presents the description of milk industry and the number of as well as income of main companies. Despite consolidation processes, milk processing industry still has the features of a dispersed sector.