: The goal of the research is investigation of interrelationship and importance of factors impacting corporate sustainability, paying greater attention to financial viability of a company. For achievement of goal, authors have implemented the theoretical analysis of literature, applied the scientific induction and the analysis of primary and secondary data. Commercial organizations of Riga region (Latvia), which provide the services, are the subject of the research. The authors analyze and understand the essence of the category "sustainable development" and characterize factors impacting on company's sustainable development, applying the methodology of „Golden section“. The authors evaluate the contribution of financial viability in sustainable development of Latvian companies, as well as define the sufficient level of indicators of financial viability. The results of research will enable commercial organizations to achieve the harmonious sustainable development, and to redefine their development strategy.