International Standard Industrial Classification of All Economic Activities, Revision 4. Maintained by the United Nations Statistics Division.
ISIC is the international reference classification of productive activities. Its main purpose is to provide a set of activity categories that can be used for the collection and reporting of statistics according to such activities.
ISIC Rev.4 was adopted in 2006 and published in 2008. It replaced Rev.3.1 (2002). A fifth revision (ISIC Rev.5) is under development by the UN Expert Group.
4-level hierarchy: Sections (A–U), Divisions (2-digit, 88), Groups (3-digit, 238), Classes (4-digit, 419).
21 Sections (A–U) covering agriculture, mining, manufacturing, construction, wholesale/retail, transport, accommodation, information, finance, real estate, professional services, public administration, education, health, arts, and other services.
JSIC Sections A–T correspond directly to ISIC Sections A–U. The division level (2-digit) is mostly harmonised. Japan maintains additional subdivisions (groups and industries) for national statistical precision.
ISIC Section K (Financial and insurance activities) and Section L (Real estate activities) are separate; JSIC combines related activities differently. JSIC also has Section R (Services, N.E.C.) with no direct ISIC counterpart.