The ‘witness seminar’ as a method for recording contemporary histories is neither well known nor widely employed. By inviting a number of people who were involved in a particular historical event to come together and tell this history collectively, the method enables the production of rich and compelling accounts of contemporary histories. In this article, I introduce the method and the procedures followed in four witness seminars that I organised and co-convened on various topics relating to HIV. I then go on to reflect on the value of this method and how the connections between seminar participants both gave shape to the narrative produced and were also telling of the collaborative history of HIV.