Today managers are considered to be a great resources of their companies. It's considered that besides their knowledge and skills, the efficacy of their business is affected by their personal characteristics as well. Personality is inborn and part of every individual. It differs from person to person and can't be learned or acquired as a competency. There is a question as to how much personal characteristics are affecting the business and the success of a manager and whether there is a link between managing and managing a company with a fivefactor personality model. The aim of this research is to identify the attitudes of managers according to the required characteristics and competencies for successful business operations, and to establish the correlation between the success of business and personality. In the survey, 50 managers in the Republic of Croatia participated, operating at a lower, middle and higher level of management in the ages of 18 to 55 and over. Managers are employed in small, medium and large companies operating in various industries.