The topic of this dissertation is positive psychology, focusing mainly on business. The dissertation no longer deals with the technical economic issues of workspace arrangements and human relationships in companies; instead it focuses on an individuals internal world and positive psychology. In order to achieve a deeper understanding of the topic, the dissertation touches upon topics such as happiness, money and changes as separate phenomena. Psychology as a science with regards to its past and present is elaborated on, as well, in order to present a wholesome overview. The dissertation deals with professional firefighters in Croatia, it examines a professional fire brigade in great detail and offers possible solutions for the issues through Swot analysis, Tows matrix, their mission and vision. 42% of the interviewed firefighters work in professional fire brigades, whereas other interviewed employees are dispersed through various private and civic companies. The interviews were done through questionnaires. The research indicates that employees can tell what the situations are like in their companies and they are willing to help when the company is struggling. The next important discovery is that the level of positive psychology applied by the company leaders is less than satisfactory according to the employees. Deeper analysis of the results indicates that the companies have better employees than they deserve, judging by the way they run the business. The research results reveal an unambiguous dissatisfaction with the salary levels and poor workplace systematization with regards to salary levels within the companies. The research shows that positive psychology but only truly positive psychology can motivate the employees to work a little bit harder and to give more than what is expected of them.