BC Serdon assisted the South East European Research Centre in collecting information for research on the use of a cluster approach for improving the competitiveness of SMEs in Bulgaria. In the first project phase we identified companies that are members of clusters. Questionnaires were distributed to both cluster and non-cluster members from the same economic sectors. As a whole 100 responses were collected: 50 from cluster and 50 from non-cluster members. The information gathered was organized into a database and submitted to the client for integration into the larger research framework.