The development of technology enters every area of our lives. In the work environment, HRM tools and the use of business intelligence in human capital management are becoming more and more popular. Proper software of HRM tools and drawing knowledge from HR data gives enormous knowledge about what is happening in the organization – from the challenges faced by the company to the areas that build its competitive advantage. There are more and more aspects of management psychology and terms such as management neurosis, a combination of management sciences, neurobiology and psychology. The purpose of this article is to present HRM tool such as WinWinNeuroAnalytics, which allows to the analysis of employee reserve diagnostics in an innovative way. Efficiency among employees is one of the most important challenges of modern management. Having specific and measurable information about the company, it is possible to introduce it to a completely different, higher level of management. Big data in HR is an added value for the organization, allowing it to define the difficulties it is struggling with and providing information on the perception of phenomena taking place in the company through the eyes of its employees. Organizations are made by people. They are the ones who know their positions best and have knowledge about the factors that make theirwork difficult and determine their effectiveness. An effective company has a much greater growth potential, and thus more opportunities for development.