The aim of this study was to explain the role of the external audit in relation to the main boards of companies, especially the management board, their interrelations and possible influences in the work of the external audit. Due to the complexity of the task, it was defined two research hypotheses, and research was conducted with two questionnaire, tested on two different samples. Testing results of a first hypothesis showed that 84.85% of the audit companies sample considers that the company's management has a significant impact on the impartiality and independence of the external audit, and on the other hand, 64.10% of the sample companies were of the opinion that the management board of has no significant impact on the impartiality and independence of the external audit. In accordance with such results, the first hypothesis from the perspective of a sample audit companies accepted, while from the perspective of a sample of companies the same is dismissed. The research is in the case of the second hypothesis confirmed the existence of similarities in opinion of respondents on the impact of external audit on the efficiency of the company management, but the disparity in opinion of the same when it comes to the impact of the company's management on the efficiency of the external audit. Considering the results of tests accepted the second hypothesis according to which the successful cooperation of the management board and external audit can significantly contribute to increasing the efficiency of administration and external audit. The research includes in fact only one immediate area the scope of the external audit, ie., the ratio of the external audit and the management board of the company which in the future opens up space for further research in this area, especially through the consideration of external audit relationship with the other, other than the administration, the bodies of the company.