International humanitarian assistance is an expression of solidarity and empathy for the people standing in the face of disaster. It is given to the victims of armed conflicts and humanitarian crises and it has the power to save lives and health. Presence of humanitarian aid or its lack often determines the viability of local communities. Aid is usual necessary to the recovery and revitalization of the crisis-affected areas. Intergovernmental organisations are actively engage in the process of humanitarian aid distribution. Their activities – carried throughout the last decade – have transformed the humanitarian sphere of international relations. The purpose of this paper is to determine the contribution of intergovernmental organizations in the delivery of aid and to highlight the main areas of their responsibility. The author describes activities of the Office for the Co-ordination of Humanitarian Affairs, World Food Programme, Food & Agriculture Organisation of the United Nations, World Health Organisation, United Nations Children's Fund, United Nations High Commissioner for Refugee, International Organisation for Migration as well as United Nations Development Programme. Author also presents the main assumptions of humanitarian cluster approach and describes the range of support, which is provided by the large intergovernmental organisations to the humanitarian community.