This article shares the history of organization and development of Kostomuksha ore dressing and processing enterprise («Karelskiy Okatysh» JSC), as an example of successful business collaboration of more than 20 project organizations, including foreign. The role of «Mekhanobr» institute was in the development of beneficiation technology: pelletizing and projecting of basic industrial objects of an enterprise, with the following premature implementation of four facilities and further technological development of the commercial output production. The modernization project of an enterprise was carried out by the institute in 2009.