The aim of this dissertation is to examine inter-ethnic relations between organizationally active people with different ethnic backgrounds. I focus on relations that are based on a mutual interdependence between parties, mutual respect, common procedural rules, real opportunities that expressly approve or reject a proposal in a decision or deliberation situation free from compulsion, where people, who have different ethnic backgrounds, strive after insight and understanding in their relations. In this dissertation I present three empirical cases about cooperation, consultation and participation as forms of inter-ethnic relations from the organizational fields in the society. These cases are examples of what I characterize as “organizing inter-ethnicity”, or organizing people with different ethnic backgrounds around common concerns. Organizing inter-ethnicity is in turn a part of organizing and integrating diversity in society. Drawing on the results of three case studies, I distinguish between opportunities and barriers. My case studies clearly illustrate that the tensions that influence the patterns of and variation in opportunities and barriers have sources that reach well beyond ethnicity. Tensions between old and new organizations, between working immigrant organizations and refugee organizations, between organizations from same group or between organizations that have conflicts from their members’ countries of origin provide some examples of the difficulties that generate barriers to broad interest constellations between organizations.