EN
The paper is empirical in its character. In particular, it presents the excerpts from the scientific research conducted by the author among the selected group of the largest construction and assembly companies in Poland. The key aim of the paper is to outline and discuss the results of the empirical research into risk in business activities carried out by the surveyed companies. The research has covered only the largest contractors as large and very large construction and assembly companies tend to act as general contractors and carry out the biggest investment projects which, by definition, involve the highest risk. The execution of such projects requires the identification of risks, which occur at all stages of the investment and construction process.