Contributing to the organisation of the European Day of Languages are the following operators:
- European Commission (in Finnish)
- The Federation of Foreign Language Teachers in Finland SUKOL
- Finnish Association of the Deaf (in Finnish)
- Finnish National Agency for Education
- Institute for the Languages of Finland
- Ministry of Education and Culture
- National Advisory Board on Romani Affairs
- The Network of Finnish University Language Centres FINELC
- Sámi Parliament of Finland
- Suomenopettajat (in Finnish)
- Trade Union of Education, OAJ
- Tuglas-seura (in Finnish)
- Union of Teachers with Different Languages and Cultural Backgrounds
- Äidinkielen opettajain liitto (in Finnish)