A primary aim of the SUCOZOMA research program has been the transfer of knowledge from the scientific community to research users. This paper describes the intentions and ambitions regarding knowledge transfer within the program, reflecting the aim of its financier, the Swedish Foundation of Strategic Environmental Research, but also a general trend within research policy. The study investigates the areas in which SUCOZOMA has actively tried to transfer knowledge, reaching out to management and different practitioners. Many examples of communication and participation of research users in the program are described. The paper also identifies the bottlenecks and limits to communication.