Purpose: Assessment of changes in the size of investment outlays and territorial diversification of investment activity in the conditions of crisis phenomena, broken down by selected groups of entities forming the national economy in Poland. Design/methodology/approach: The method of critical analysis of the literature on the subject and the method of comparative analysis in the field of empirical and statistical data in the generic and territorial arrangement according to selected categories of regional and subregional units. Findings: The financial diversification of the scope of investment activity of groups of entities operating in the national economy was indicated, in detail in terms of the central and local government subsectors. The scale and directions of changes in spatial disproportions of investment potential in regions and subregions in Poland were identified, taking into account changes resulting from the observed crisis phenomena in the period 2010-2021. Research limitations/implications: The presented research results are limited by the availability of empirical data in detailed territorial systems. Due to the currently observed dynamic changes and economic turbulence, it is advisable to constantly update data and further analyzes in the conditions of ongoing crisis phenomena. Practical implications: The practical dimension of the analysis refers to possible applications in the preparation of diagnoses and plans for socio-economic development at various levels of public administration competence. Social implications: The results of the research may provide information for public sector entities supporting the processes of programming public investments in order to achieve socio economic cohesion, reduce social disparities and improve the living conditions of the population. Originality/value: The paper contains the results of analyzes on the consequences of crisis phenomena affecting the national economy and the ability of its selected components to undertake investment outlays. The applied territorial approach provides new knowledge that can be used in further detailed scientific research and in the decision-making process regarding the conduct of investment policy at the national and regional level. Keywords: investments, regional development, economic crisis, public sector. Category of the paper: Research paper.