Introduction. The article describes and summarizes the experience of different countries in developing the information systems supporting the management of territories and their sustainable development. Some countries, such as the USA, Australia, Great Britain, and others, made great strides in developing such systems at the national level. The article also provides examples of spatial databases for the territories of Saudi Arabia, Hungary, coastal regions of Spain, etc. The basis for the territorial management support system is the spatial data infrastructure (SDI), which provides data storage, updating, access to data, as well as their visualization in the form of maps, graphs or tables. For a long time, geoportals were considered one of the most effective types of spatial data infrastructures, combining many functions necessary for displaying spatial information and effective management. However, now geoportals are being replaced by information and analytical systems of a new generation that goes beyond the SDI concept and are called geospatial ecosystems. Materials and research methods. The tasks of information support of territorial development projects from the perspective of sustainable development are set at all territorial levels, from global to local. At the global level, statistical data is collected by countries and regions of the world within the framework of the work of the largest international organizations: The United Nations, the World Bank, WHO, UNESCO, the International Labor Organization, the International Tourism Organization, etc. As a rule, this data is publicly available and published on the websites of organizations and in annual reports. The results of the study and their discussion: For a long time, geoportals were considered one of the most effective types of spatial data infrastructures, combining many functions necessary for effective territory management (Gamez et al., 2019). However, in recent years, geoportals have been replaced by new-generation information and analytical systems that go beyond the SDI concept and are called geospatial ecosystems. The metaphor "ecosystem" in this case conveys the fundamental concept of a dynamic, complexly organized, stable, adaptive multi-user geoinformation environment (Strobl, 2021; Shao et al., 2012).The transition from SDI to a geospatial ecosystem is driven by a continuous increase in the volume of generated spatial information, an increase in the number of platforms and services based on geodata, and the emergence of new challenges in data management, including in the field of data protection and cyber-security.