 In 2019 he was elected a Fellow of the Royal Society of Edinburgh.During his career, Greggs has also served as a visiting research fellow at St John's College, Durham, and as the College of Arts and Sciences International Visiting Scholar and Visiting Professor in Religion at the University of Virginia.He has served as secretary of Society for the Study of Theology, and as co-chair of the Scriptural Reasoning panel for the American Academy of Religion.