As the ecosystem of actors communicating science has become more complex, there is a need to understand the motivations and deterrents of those involved in the communication of science, technology and health topics. This article reports on a survey of 465 communication actors based in seven European countries. The findings suggest strong commonalities between role and country, with personal enthusiasm a key motivator, and from a theoretical perspective, these motivations can be viewed as relatively pragmatic. More variation was found between countries and roles in barriers to communication, though these suggest a perception that institutions do not value this work.