A career is a term that is most often defined as individual development that can be seen in his experience, his knowledge, his skills and in his behaviour in general. That development is determined by the tasks which were already performed, by the current tasks and of course by the tasks which are yet to be performed. A career is different from a job and generally lasts from choosing an occupation or profession until retirement. Public water service providers provide their services to small commercial users and residentials in their operating areas with the aim of increasing the living quality of the citizens and not primarily for making a financial profit. The legal framework in which they provide their services is such that in their geographical area they have a monopoly. Subsequently, a competition as the most significant factor of productivity is absent. Integration of several public water service providers at one operating area is leading to significant organizational changes which have inevitable impact on career development of its employees. As part of that, according to the legal framework, in such utilities must be enough key employees but at the same time, attention is of course on all other employees because exactly these employees are in modern business philosophy the biggest capital of the company. In this thesis were used method of description, inductive and deductive method, method of analysis, method of synthesis and empirical method which include survey method, counting method, method of statistics and compilation method. As a preparation for the upcoming organizational changes, but also as preventing the outflow of competent employees, through a survey method is provided a research of public water service providers which will be integrated in Operating Area 28. Through an empirical research there were determined interests and attitudes as well as there were made proposals of priority measures for working conditions improvement with the purpose of increasing of their work productivity. Utility organized in that way provides high quality level of water services simultaneously achieving financial and business selfsustainability.