English: Standard Industrial Classification of Economic Activities
Welsh: Dosbarthiad Diwydiannol Safonol ar gyfer Gweithgareddau Economaidd
Subject: Datblygu economaidd
English definition: A method for classifying business establishments by the type of economic activity in which they are engaged.
Welsh definition: Dull o ddosbarthu sefydliadau busnes yn ôl y math o weithgaredd economaidd y maent yn ymwneud ag ef.