The article is dedicated to the issues of increase of international cooperation effectiveness due to timely estimation of the projects, international practice consideration and decision on their applicability at the local market. Nowadays estimation of projects, that are adapted for other markets, is performed the same way as for local projects which, in the authors’ opinion, is inappropriate. Methodology of project success estimation and special tools for searching opportunity of its adaptation to new conditions are suggested for making decision on project extension to new markets. The foundation for the article is adaptation factors classification based on domestic and foreign research. Practical results of using the methodology are provided by the example of cooperation of foreign vendors and domestic supply companies.