This paper argues for the importance of using the regional integration of transnational corporations for developing competitive economies in Commonwealth of Independent States. At present the corporate integration becomes essential for enhancing the economic relations in the area of the CSI. The corporate structures facilitates achievement of the multiple projects of economic integration in post-soviet space by using the opportunities. Concomitant the transnational corporations are often the initiators of public-private partnership in implementing certain projects. The corporate structures allow mitigation of several major contradictions between members of the community. The corporate integration is improving political climate in balancing relations between countries of commonwealth. Thus, the transnational corporations directly contribute to real growth in the Commonwealth area of Independent States.