Active interaction of enterprises is currently becoming one of the key factors for generating the overall positive result of innovative economy.The organization of economic relations is undergoing complex transformationsgiven the profound technological changes and intertwining organizational, social and institutional changes. For this reason, studies focus on the functional content and structural organization of various forms of associations. One of the commonforms of such unions are poorly structured associations. Poorly structured associations involve stable long-term interaction of economic entities that combine and coordinate their goals, opportunities and external contacts, generating a synergetic effect. These associations need not onlycommon information space, state support, tax preferences, but also common informative tools for development. Informative development tools are similarto cognitive tools, allowing to understand different systemassociations occurring in the innovation environment, in particular, to assess their institutional characteristics, to identify the main opportunities and constraints of their development, to determine the vector of evolution of loosely structured associations, to participate in effective management and to help in strategic planning of regional and national economies. The priority direction of evolution of informative development tools in the conditions of knowledge-based economy is creatinga complex of informative tools focused on the needs of developing promising poorly structured associations. As a result of the study, we have proposed the classification criteriafor informative development tools: expended resources; evaluation of results; impact on economic sectors; contributions to regional budget; contribution to national budget. This classification provides the most complete system of necessary management decisions. One of the promising tools is construction of models. The article proposes a model for substantiating the system of supporting measures, as well as stages of solving the problem. Thus, the main potential of informative tools for development of poorly structured associations is to ensure that the design values are obtained for the parameters of development of these systems,elements of new knowledge are gained and integratedinto the developing system.