Activities of membership organisations Standard Industrial Classification (SIC) codes of UK-based importers and exporters 94110 - Activities of business and employers membership organizations (5064) 94120 - Activities of professional membership organizations (5626) 94200 - Activities of trade unions (885) 94910 - Activities of religious organizations (7944) 94920 - Activities of political organizations (843) 94990 - Activities of other membership organizations n.e.c. (15671)