Current:

Treasurer, EEPS Foundation, Inc.

Member, IPSA Research Committee 16 on Socio-Political Pluralism

Member, International Political Science Association

Member, Association of Slavic, East European, and Eurasian Studies (formerly AAASS)

Member, American Political Science Association

Member, Council for European Studies

Member, IPSA/ISA Joint Committee on Political Sociology

Member, Polish Studies Association (USA)

Member, Association for the Study of Nationalities

Member, Concilium Civitas

Past (selected):

Chair (2010-12), Vice-Chair (2004-10; 2012-17), IPSA Research Committee 16 on Socio-Political Pluralism

President (1996-99), Vice President (1991-1996), Polish Studies Association (USA)

Member of the National Executive Board, Polish Sociological Association (1990-92)

Advisor to the President, Confederation of Polish Employers (1990-93)

Member of the Advisory Board, Foundation in Support of Local Democracy (Warsaw, Poland, 1990-92)

Vice President, Polish Sociological Association, Warsaw branch, (1983-85)