The organizational climate affects performance (Spiegel, Torres, 1994). The climate characterized by flexibility, empathy, trust, respect, focus on task, highlights the fact that the participants are concerned with solving service problems, oriented towards respect and associated with high performance. The tense climate, grounded in suspicion, mistrust among employees, tendency to control others, is mainly associated with low performance. Teamwork (Owen, 1985) becomes effective based on institution values, managerial policies, power groups, stress loading, performance assessment, and employee personality. Individual variables (personality traits, motivation, skills, skills, age, work experience, stress resistance) along with organizational variables (management, working conditions, equipment, technologies) are factors that generate high professional performance. In the present research it was wanted to analyze the relationship between the level of stress, the level of professional exhaustion, the personality, the level of professional performance and a series of personal characteristics of 60 employees from different fields of activity in the city of Iasi. Considering the specificity of work, it is believed that, determining the level of stress and personality factors that facilitate the adaptation to stress, can optimize the work and the psychological comfort of the employees.