Management of employee career development is analyzed through the effects of practice in the example of family company Spider Grupa Pitomaca with a systematic review of the degree and effects of such implementation in small businesses. Thesis paper can be used as an example of the theoretical basis implementation of international practice in an example of small companies in Croatia and their degree in the application of such practices in the employee career management. Theoretical part and examples are analyzed for setting the basis of a benchmark and comparison to the practices applied in the observed environment. In the initial part of the thesis, the examples and theoretical considerations of cases from the global environment and renowned human resource management experts are cited. A comparison is being made with the most spread worldwide practice of career development on the example of implementation in a smaller environment and family business in Croatia. The further elaboration of the thesis is related to the specific characteristics of the family company that is observed and the basic structure of the employees. The main part of the thesis paper is elaborated through practice that is used through the history their development in the environment of managing human resources. The underlying thesis is being confirmed through the examples and their degree of application, all based on the theoretical models in the observed environment. This thesis paper confirms that the business organizations success is based on their strategy and awareness of the need for the career development of employees as a key resource in their business success.