The main task of the tour operator on the tourist market is reflected in the specific functions that this entity performs. In the theoretical tourism literature, mostly those functions of tour operators that are most visible on the market are mentioned. There are about ten thousand different tour operators operating on the world tourist market today. In practice, we mostly talk about large, medium and small tour operators and specialist tour operators. Specialist tour operators are recognizable by their orientation towards a narrower market sector of demand, taking into account the special interest of potential tourists, for which the specialist tour operator creates a package deal. In the last few years, the market of specialist tour operators has been expanding more and more, and there are a large number of them that are very different from each other. However, the criteria for their division are not specified in the tourist division, so only their forms are listed most often. We will group them together according to three basic criteria: according to the content of the product (specialists for the offer of holiday activities), applying a geographical criterion (specialists for a certain tourist destination), according to sociodemographic criteria (specialists for certain age groups). The paper will analyze the advantages and disadvantages of tour operators specializing in certain age groups on the example of the business of tour operators Collegium Mondial Travel, Advanture Women and Saga Holidays.