Catalan language
According to the Statistical Institute of Catalonia in 2008 the Catalan language is the second most commonly used in Catalonia, after Spanish, as a native or self-defining language. The Generalitat of Catalunya spends part of its annual budget on the promotion of the use of Catalan in Catalonia and in other territories.

Q: What group spends money to promote the language?
The Generalitat of Catalunya