The EuroVoc thesaurus maintained by the EU Publications Office is available in 24 languages and is focused on the main areas of activity of the EU. Like EuroVoc, a number of multilingual specialised thesauri or controlled vocabularies are also maintained and disseminated independently with their own thesaurus management systems, inside the EU institutions and agencies. Thesaurus Alignment carried out in the Publications Office has shown that a number of concepts and terms are shared and duplicated amongst the EU thesauri. With the objective of enhanced collaboration between EU multilingual thesauri, the Publications Office proposes to offer a collaborative environment for thesaurus maintenance, dissemination and alignment for EU institutions and agencies. The collaboration will enable mutual enrichment of our thesauri in terms of coverage, languages and the generation of Linked Data. Additionally, the project will help with reducing the efforts and costs of thesaurus maintenance, translation, hosting and development.