This paper reports on the first UK Knowledge Mobilisation Forum, held in mixed reality on 3–4 February 2014. This forum brought together 70 delegates from 15 sectors under the theme of ‘making connections matter’. Highly participatory and academically credible, the forum combined a form of ‘open space’ participation with presentations from respected speakers on topics as diverse as design, fiction writing and community-university coproduction. The forum has been described as ‘a hallmark event’. It was rated as excellent or good by 85% of attendees, and there is demand for it to become an annual event. It will be held next in Edinburgh in 2015.