Here are organisations that conduct research that relates to language democracy:
Research centre that deals with international migration and ethnic relations in Europe. It is located at the University of Utrecht, Netherlands.
Home: www.uu.nl/uupublish/onderzoek/onderzoekcentra/ercomer/24638main.html
Multi-disciplinary research centre at the École de traduction et d'interpretation, Geneva University, Switzerland. It explores the relationships among economy, language and education.
Home: www.unige.ch/eti/elf
Foundation (with an office in Washington, DC, USA) that funds research on Esperanto, language inequalities and barriers to communication as well as means to overcome these language problems.
Home: www.esperantic.org
The European Science Foundation (with an office in Strasbourg, France) coordinates and co-finances research in all scientific fields (including human and social sciences). It has 78 member organisations in 30 European countries.
Home: www.esf.org
Research centre on language policy, constructed languages and Esperanto studies. It is headquartered in Berlin and organises meetings and publishing activities.