The doctoral thesis explores factors influencing digital business models maturity for charter in nautical tourism, as well as the relationship between digital business models maturity and business performance. Using the method of data collection through a survey questionnaire, along with the method of content analysis, with the processing of results using structural equations modeling and regression analysis, the influence of four groups of factors was examined. It was found that all observed technological, organizational and managerial factors have a positive and statistically significant impact on the maturity of digital business models, while of the general factors only the size of the company was in a positive, statistically significant relationship with maturity. Other general factors observed, such as company age, digital history, and business location, did not show a statistically significant correlation with digital business models maturity, which was partly expected. Examining the relationship between digital business models maturity and business performance, it was found that there is a statistically significant positive relationship between these constructs, as well as a positive, statistically significant relationship between digital business models maturity and expected future performance. Thus, the research model was largely empirically confirmed, and in addition, the research provided a detailed insight into the features and types of digital business models in the observed sector, on which there was a lack of previous literature. Moreover, the features and types of digital business models for charter have been compared with those for booking tourist accommodation and key similarities and differences have been identified, as well as a number of opportunities for improvement and potential trends for future development.