Sir David Tweedie was educated at Edinburgh University and qualified as a Scottish Chartered Accountant in 1972. He went on to teach accounting for six years at the university. He was appointed Technical Director of The Institute of Chartered Accountants of Scotland (ICAS) in 1978 and moved in 1982 to the position of National Technical Partner of the then Thomson McLintock & Co. In 1987 his firm merged with Peat Marwick Mitchell & Co where he was appointed national technical partner of the merged firm – KPMG.
Sir David was appointed the first full-time Chairman of the Accounting Standards Board in the UK and was then appointed first Chairman of the International Accounting Standards Board (IASB) and CEO of the Foundation.
Sir David became President of The Institute of Chartered Accountants of Scotland in April 2012 (until April 2013) and Chairman of the International Valuation Standards Council (IVSC) in October 2012.