The Common Language Resources and Technology Infrastructure (CLARIN) is responsible for providing access to language resources and technologies for researchers in the humanities, the social sciences and beyond. CLARIN offers simple and sustainable access to digital language data (in written, spoken, video or multimodal form) and advanced tools to discover, explore, exploit, annotate, analyse or combine them, wherever they are located. For this purpose, CLARIN has set up a distributed network of trusted data and service centres, among which 24 data centres with CTS certification. The access service is offered through a single sign-on environment. CLARIN also serves a network of technical services as an ecosystem for knowledge sharing.