Amcangyfrifon o Ymchwil a Datblygu a wnaed ym mhedwar sector yr economi, ac a ariannwyd ganddynt. Mae'r sectorau hyn yn cynnwys Menter Busnes, Addysg Uwch, Llywodraeth (gan gynnwys y Cynghorau Ymchwil) a sefydliadau Preifat Nad Ydynt yn Gwneud Elw.
Annual estimates of national research and development (R&D) spending in the UK from the public and private sectors: business enterprise, government, higher education and private non-profit organisations.
Policy makers are interested in identifying Science and Technology (S&T) businesses in official data sources to better understand the contribution that they make to the economy. This article proposes a classification for S&T and for sub-categories such as Life Sciences and Digital Technology, based on the UK Standard Industrial Classification of Economic Activities (SIC) 2007. It includes practical examples and explanations of how to use the approach with different data sources