The present chapter is structured as follows. The first section introduces the particular nature and relative novelty of measuring tourism from the supply perspective and includes a discussion of tourism‑relevant statistical units, sources and proposed tables of results, all of which are rooted in industry statistics and National Accounts. This is succeeded by an in‑depth consideration of some of the main tourism industries, with a particular focus on the accommodation service providers (sect. B), providers of food and beverage services (sect. C), providers of transport services (sect. D) and travel and reservation agencies (sect. E). Other industries that are not considered tourism characteristic per se but which may nevertheless be highly relevant for tourism, like the handicrafts production and trade of and meetings industries, are examined in the concluding section.