Simon Tanner is the founding Director of King's Digital Consultancy Services (KDCS) at King's College London. KDCS provides research and consulting services specialising in the information and digital domain for the cultural, heritage and information sectors. Simon is also co-Director of the Desmond Tutu Digital Archive project with two South African partner institutions.

Simon is an independent member of the UK Legal Deposit Advisory Panel and Chair of its Web Archiving sub-committee. He is also a member of the JISC Digitisation Advisory Group. He has been a consultant to the National Library of Scotland, UNESCO, Kew Gardens, the Royal Academy of Arts, Imperial War Museum, Oxford University, the National Library of Ireland, Birmingham Public Libraries, the House of Commons and advised Denmarks national digitisation programme amongst many others. Simon has also carried out research projects for the Andrew W. Mellon Foundation on charging models for digital cultural heritage in Europe and the USA.

Simon authored the book, Digital Futures: Strategies for the Information Age, with Dr Marilyn Deegan and they co-edited the book, Digital Preservation.