Object - research is marketing activities of non-profit entities. Purpose - the development of conceptual and theoretical propositions, methodology and scientific recommendations aimed at improving marketing activities of organized non-profit entities. Methods - analysis and synthesis, systematic method, historical and logical analysis, systematic functional analysis, logical generalization and extrapolation of abstraction, economic-statistical method, graphical and tabular methods of harvesting and primary processing of specific data, retrospective analysis, expert evaluation method, cluster analysis, economic-mathematical modeling and regression-correlation analysis. Results - theoretical generalization and new solution of actual scientific problem of the development of conceptual and theoretical propositions, methodology and scientific recommendations on the marketing of non-profit entities. Novelty - proposed theoretical and methodological foundations of marketing activity of non-profit entities through detection of preconditions, stages and determinants of non-profit entities' marketing development; methodological scheme of non-profit entities' marketing research is found, its categorical apparatus; marketing mechanism of the implementation of non-profit entities social function and methodological approach to social effect evaluation; improved the scientific and methodical approach to search for development directions of non-profit entities' marketing, which is based on the research of challenges, specifics of marketing activity process, sphere of activity and type of ownership; proposed recommendations for social advertising development in Ukraine; imperatives of development and conceptual scheme of non-profit entities' marketing system; ways of its integration with marketing environment components; the system of indicators of marketing support of non-profit entities' social effect. They are implemented in practice of the International Organization for Migration in Ukraine, The All-Ukrainian Coalition of NGOs for Combating Trafficking in Human Beings, NGO "Ternopil City Women's Club "Vidrodzhennya natsiyi",Vinnitsa NGO "Society feminists "Prohresyvni zhinky"", Zakarpattia public women's organization "Vesta", Kharkiv public organization "Shlyakh do zhyttya", the Vinnytsia regional human rights organization "Dzherelo nadiyi", Department of Family and Youth of Ternopil Regional State Administration, Department of Infrastructure, Transport and Energy Efficiency of Ternopil Regional State Administration and the learning process of Ternopil Ivan Pul'uj National Technical University. Scope - activities of non-profit enterprises, institutions and organizations.