Purchasing consortia is a widespread way for libraries looking to purchase electronic journals and other sources because of many advantages when compared to the classic purchasing models. In our study, we compared consortia from Iceland, Finnland and Slovenia. Iceland and Finland have national-centralised purchasing consortia, the CTK consortium from Slovenia belongs to the decentralised type. Our findings suggest that Finnish and Icelandic consortia have higher operating costs, a more stable number of members and more employees than CTK consortium. Compared to nordic consortia, CTK consortium has significantly lower operating costs and on average has had the highest growth of purchasing funds. In order to reach more conclusive findings, the research method would need to be improved as there are significant differences between the mentioned consortia.