Actuality of research theme. Assessing the competitiveness of an enterprise is a complex multifactorial task, which boils down to identifying the most significant numerical indicators of competitiveness and their integration. The need to aggregate all indicators is due to the fact that the object of modeling (the effective functioning of the enterprise) requires not only generalizing characteristics, but also the ordering of its individual elements according to certain properties and principles. The problem of forming a sound corporate culture as a basis for increasing competitiveness of the enterprise becomes especially acute. Problem statement. Nowadays conditions business environment require introduction of a sound system for assessing the effectiveness of corporate culture and establishing a close relationship with the competitiveness of the enterprise. Analysis of the last researches and publications. Almost all researchers of the theory of assessment and management of competitiveness are engaged in the search for a capable management system that would facilitate the rapid response of the business entity to change the external and internal business environment, adaptation to new conditions. Despite considerable work, there remain problems requiring particular scientific analysis. In particular, insufficient attention is paid to exploring the soundness of corporate culture as a basis for increasing competitiveness of the enterprises of all forms of ownership. Uninvestigated parts of general matters defining. Not enough-researched and unpublished parts in periodicals issues remain related optimal methodological approach to assess the level of competitiveness of the enterprise, taking into account the formed corporate culture and the level of competitiveness of labor resources. The primary purpose of the study comprises to identify the peculiarities of corporate culture formation as a basis for increasing competitiveness of the enterprises of all forms of ownership. The methodological basis of the research was the scientific works of Ukrainian and foreign scientists, leading experts, statistical and analytical materials of state authorities. Results. The peculiarities of definition and formation of corporate culture are investigated. The level of corporate culture at the enterprise is assessmented. It has been revealed that the lack of a sound methodological approach to employee rating and appropriate means of motivation for professional development can lead to the loss of existing intellectual potential and competitive positions in the market services in general. The expediency of using the methodology of assessment of the efficiency of management of the enterprise based on the use of taxonomic analysis is substantiated. The expediency of forming an effective corporate culture as a basis for increasing competitiveness of the enterprises of all forms of ownership is substantiated. The field of application of results. The results of the study can be used by all stakeholders, including public authorities and local self-government, leading enterprises in the region. Conclusions. The leadership of domestic enterprises should ensure the formation and implementation of an effective corporate culture with a certain set of material and spiritual values, rules of behavior of employees.