There is an inextricable link between interest groups and the Polish state. Their origins can be traced back to the emergence of collective interests. As the state developed, interest groups advanced their organizational forms and secured more prominent influence on public policy. In the beginnings, interest groups played similar role as political parties. Eventually, their activities diverged and differences became apparent. The term „interest group” began to reflect an organized group of people pursuing particular interests of their members. That allowed to draw a demarcation line between political party and interest group based on the type of affairs they are engaging in, i.e. public versus particular, respectively. The importance of interest groups in democracy cannot be underestimated. It is argued that their participation in policy making improves the quality of law, as they are able to supply legislators with relevant data and analyses concerning particular social issues. However, in some instances, activities of interest groups are far from desirable in a democratic society. The most obvious threat stems from ability to corrupt government representatives vested with powers in policy making. Moreover, this particular characteristic is responsible for a negative image of different interest groups in society.