Lord Kestenbaum is a Director of Windmill Hill Asset Management, and an adviser to a range of interests associated with the Rothschild family. He is also the Chancellor of Plymouth University.
He was previously the Chief Operating Officer at RIT Capital Partners, the publicly quoted investment trust, having earlier served as Chief Executive of Five Arrows Limited the private investment vehicle controlled by Lord Rothschild. Jonathan has also been the Chief Executive of the National Endowment for Science, Technology and the Arts, prior to which he was Chief of Staff to the Chairman of Apax Partners, Sir Ronald Cohen.
Jonathan was on the Board of the charity the Design Council and Enterprise Insight, and was Non-Executive Chairman of Quest, a large accounting business. He served on the Governing Body of the Technology Strategy Board, acted as a Commissioner of the Manchester Independent Economic Review and also Chairman of the City of Manchester Science Review. He has completed his term of office on the Innovation Advisory Group at Imperial College and is now Adjunct Professor at the Imperial College Business School. He also served on the Board of the Royal Shakespeare Company, and was involved in developing the new Royal Shakespeare Theatre in Stratford-Upon-Avon.