Abstract: The comprehensive processes of globalization of the world economic system are realized in modern conditions by diversified mechanisms of international economic relations, which form established channels of cross-border flows of goods, services, intellectual property, labor, as well as investment and financial and credit capital. A specific place in their structure is occupied by the international trade activity of economic entities of different states, which in recent years has become a powerful driver of their political influence on their partners, and thus raises the issue of offensive trade diplomacy by countries. The article provides a comprehensive characterization of the formats and practical mechanisms of trade diplomacy implemented by states to support their business structures in the global markets of goods and services. The author reveals the place, role and functions of trade missions and economic departments of embassies of states abroad in the institutional structure of their trade diplomacy. It is stated that despite the numerous representation of career diplomats in the implementation of trade diplomacy functions, in recent decades there has been a steady expansion of the subject structure of its national systems due to the involvement of noncareer diplomats, business structures, mass media, research centers, non-governmental organizations, etc. in the implementation of diplomatic functions. The author identifies the transformational changes undergone by the structure, functional tasks, organizational models, forms and methods of multilevel activities of diplomats specializing in diplomatic support of the processes of entering and maintaining competitive positions in global markets by economic entities of their countries in a turbulent business environment. It is proved that all these changes by their nature reflect the fundamental processes of dynamic economization of the diplomatic service of different countries, in which the comprehensive improvement of trade relations with partner countries and the development of a nondiscriminatory environment for their implementation become the main driver for the development of specific policy decisions in the field of foreign trade by the highest public administration.