In 1988 Gill Coleridge co-founded Rogers Coleridge & White, literary agency, together with Deborah Rogers and Pat White where she represented many famous and prize-winning authors. Gill was Chair from 2014-2019 and continues as a part-time consultant. Prior to RCW she was a director of Anthony Sheil Associates for fifteen years, having begun her publishing career at Purnell Partworks, followed by Sidgwick & Jackson, the Bedford Square Bookbang, then Chatto & Windus. Gill has been President of the Authors Association, a member of the British Library Publishing Board and a trustee of the Royal Literary Fund. In 2015 she founded the Deborah Rogers Foundation which supports emerging talent in the literary world by means of a Writers Award for first-time authors and a Bursary for rights managers. In 2021 she was elected an Honorary Fellow of the Royal Society of Literature.
She no longer takes on new clients.