The aim of this thesis was to analyze the impact of strategic alliances on companies in the hotel industry. The theoretical part of the thesis explains the concepts of strategic alliances, strategic management and the advantages of strategic alliances for partners. The second part of the thesis presents case studies that address the topic of strategic alliances in the hotel industry. The way in which strategic alliances will affect the operations of hotel companies depends on how the alliances are established and organized, as well as the commitment of the partners to achieving common goals. Given that the business environment is becoming increasingly dynamic and subject to change, there are more and more reasons to enter into strategic alliances. The analysis of the case studies showed how strategic alliances affect the operations of alliances of members. Alliances contribute to increasing competitive advantage, facilitate access to new markets, enable cost reduction and risk diversification, and encourage innovation and knowledge transfer. Problems can arise when management diverges in individual goals and the goals of the alliance and when there is a lack of trust and mechanisms for problem solving.