Resumen
The effectiveness of NGOs, similar to other types of organizations, depends on the quality and implication of their employees and volunteers. The literature highlights the role of learning capabilities, organizational learning, networking and community capacity building in ensuring organizational sustainable development in the NGO sector. In this framework, professional human resources should be an important part of the management strategy. Continuous and personalized training would be also important for NGOs. The present paper presents a qualitative investigation aiming to map the training needs and practices of the NGO sector in Romania, both from the perspective of its representatives and its stakeholders. The findings show a general agreement and concern related to the professionalism of the workers in the sector, as well as related to the lack of explicit responsibility/the feeling of being accountable assumed by the members of the sector. The study also revealed a need for closer cooperation between the members of the Quadruple Helix.