In the framework of the project ProSDinWater, the planned research activities, including the national reports summarizing an analysis of the strengths and weaknesses of the social dialogue, aim to compare information obtained from legitimate representatives participating in the social dialogue and from workers in the sector. This comparison is intended to verify the most appropriate effectiveness indicator based on comparability, which will serve as a basis for strengthening and improving social dialogue in the future, especially in a constantly changing global environment. The SWOT analysis of social dialogue in the water sector in the four countries covered by this project, namely Bulgaria, Italy, Malta and Northern Macedonia, aims to outline the strengths, weaknesses, threats and potential opportunities for the effectiveness of social dialogue.