What is characteristic for the Polish Labour Law (similarly to other countries) is decrease of unionism. Yet employees very often use their right to create new trade unions in companies, which already have unionized employees representation. This results in big numbers of trade unions, especially in state-owned companies (among others in the steel and mine industry). The multitude of competing company trade unions makes it difficult, and sometimes even impossible, to reach consensus between trade unions and an employer. This creates a serious problem to employees who do not always have a fair representation. Unfortunately, smaller trade unions do not have influence on collective labour agreements. In spite of this, they use their right to run collective bargaining or even organize strikes. In this article the author discusses this important issue and disputes over the sense of the coalition law, taking into consideration the rights of small trade unions.