A business activity is a process which is orientated over a long period of time but under the influence of various circumstances. The success of business is the result of a company’s ability to maintain the sustainability. Taking into account authors’ competence, they consider that sustainable development of Latvian enterprises, which deliver services in Riga region, mostly depends on the level of their financial viability. The aim of research is to make the factor analysis of financial viability of Latvian companies of Riga region service industry in the dynamic to enable commercial organizations to make the process of decision making optimal, to achieve financial sustainability and to redefine the development strategy of their activity. The applied research methodology is factor analysis based on chain substitutions method and method of absolute differences.