This article provides a comprehensive analysis of digital transformation processes in the agro-industrial complex (AIC) in the context of the formation and development of the systems integration services market. The relevance of the study is determined by the agricultural sector's rapid transition to a "smart agriculture" paradigm, which is creating a qualitatively new demand for high-tech integration solutions. The goal of the study is to identify the cause-and-effect relationships between digitalization processes in the AIC and the dynamics of the systems integration market, as well as to determine the key factors determining the structure and volume of this demand. The study applies an interdisciplinary approach combining methods of economic analysis, information systems theory, and strategic management. The author substantiates the thesis that digital transformation of the AIC is impossible without the creation of a unified information circuit integrating disparate technological systems, which determines the need for systems integrators' services. Technological trends (IoT, Big Data, artificial intelligence, blockchain, digital twins) that act as catalysts for this demand are analyzed. Particular attention is paid to the specifics of the Russian market in the context of import substitution policies and sanctions. The key barriers to digitalization in the agro-industrial complex and the role of systems integration in overcoming them are identified. The study's results demonstrate that the market for integration services in the agro-industrial complex will grow at a rate exceeding the national average, with integrators evolving from technical solution providers to strategic partners for agribusiness. The scientific novelty of this work lies in its systematization of the factors driving demand for systems integration in the agro-industrial complex and the development of a conceptual model for interaction between participants in the digital ecosystem of the agricultural sector.