📘 This monograph resolves important scientific and practical tasks devoted to development of theoretical and methodological principals, scientific justification and development of methods to ensure companies' financial security. Theoretical and methodological principals and methodological approaches set out in the monograph, deepen and expand range of studies in modern economic science on problems of companies' financial security. As they facilitate search of reserves to ensure continuous and adapted to spatial and temporal changes in transformation of capital into capital goods; allow to develop measures to reduce risk of companies' financial and economic activity, increase its efficiency and ensure financial development. This monograph is aimed at researchers, lecturers and students of higher educational establishments. It can be used by economists, financial analysts and financial managers for their practical business activity.