The use of tour operators and travel agents are the two well-known intermediaries in the tourism industry that help distribute information about tourist destination. However, the performance of tour operators and travel agents has been on the decline in the recent past. The basic rationale of corporate governance mechanisms is to increase the performance of firms. However, the effect of corporate governance mechanisms on firm performance is one of the most controversial research questions. The link between corporate governance and firm performance is still not fully established. The purpose of this study was to examine the effect of corporate governance mechanisms on performance of travel agencies and tour operators in Mombasa County, Kenya. Specifically, the study examined the effect of board meetings, board independence, board composition and board size on performance of travel agencies and tour operators in Mombasa County, Kenya. The theoretical framework was anchored on the agency theory, stewardship theory, and stakeholder theory. The study employed the correlational, cross-sectional survey research design to test non-causal relationships among study variables. The target population consisted of 40 travel agencies and 121 tour operators in Mombasa County, Kenya. The proportionate stratified random sampling technique was utilized to select a sample size of 29 travel agencies and 86 tour operators in Mombasa County, Kenya. The unit of observation consisted of the chief executive officer, while the unit of analysis consisted travel agency and tour operator. A pilot study was conducted to ascertain the validity and reliability of the constructed survey questionnaire. The pilot trial sample size consisted of 9 travel agencies and 26 tour operators in Mombasa County, Kenya. The pilot study results suggested that the items in the developed survey questionnaire had acceptable validity and acceptable reliability. A cross-sectional survey-based approach was used to collect primary data. With the help of 3 research assistants, the researcher utilized the drop and pick method to distribute a total of 115survey questionnaires. The collected data were processed and entered into the statistical package for social sciences (SPSS) version 26 to create a data sheet used for statistical analysis. The collected data was analyzed using descriptive statistics and inferential statistics. The Pearson's product moment correlation analysis was performed to confirm or deny the relationship between the study variables. The Pearson's correlation results showed that board meetings, board independence, board composition and board size had positive and significant relationship with the performance of travel agencies and tour operators in Mombasa County, Kenya.