The organizational theory of A.A. Bogdanov appears as an alternative to theories of European integration to explain the transformation of the European Union (EU). The formative and regulatory mechanisms of the theory are studied in relation to integration/disintegration. Among the advantages of the theory of A.A. Bogdanov are noted systematicity, universality and harmonious logical structure. Through the prism of the organizational theory the UK's exit from the EU is examined. It is concluded that there was no real break in communication (disingression) between the two sides. What happened should be considered as a restructuring of communications (transaction), resulting in the formation of a new complex in which the UK and the EU participate. The Protocol on Ireland and Northern Ireland changed the organizational connection between the elements of the new complex in such a way that the tectological (organizational) border between the EU and the United Kingdom actually lays in the Irish Sea, making Northern Ireland part of the EU. A conclusion is formulated about the potential of Bogdanov's theory for the analysis of international relations. This theory reflects the transboundary nature and universal interconnectedness of our world.