The purpose of this paper is to explore the impact of Emotional Intelligence at work-group level on Learning Organization, examining five dimensions of L.O. according to Senge’s model, within a framework of Greek Public Administration reform. The research was conducted among Greek Independent Administrative Authorities, a modern European institution that among others guarantees transparency and optimum performance, leading to upgraded public sector services. Our research is a quantitative research consisting of 257 valid questionnaires out of a sample of 300 employees. Our research highlights the strong correlation between Work-group Emotional Intelligence and Learning Organization. A constructive emotional climate affects the vision of the organization, while emotions have an impact on employees’ attitudes/behaviours and on the learning process within the group as well as on the diffusion of information. Finally, our research demonstrated that emotional intelligence affects the personal improvement and development of employees. Managers should focus on developing more emotionally intelligent employees by cultivating an emotional environment that promotes positive behaviours, system thinking and group learning. Thus, the benefits generated can be identified at both individual and organizational level, including higher levels of employees’ personal development, better communication processes and implementing the organization’s vision.