Confederation of Open Access Repositories (COAR) 
COAR operates on behalf of libraries, universities, research and other institutions from all over the world, at the same time uniting and representing open access repositories. Vilnius University has joined the confederation in 2013 (the organization itself was founded in 2009) and now is an active member of COAR. In 2017 the General Assembly has appointed Director General of Vilnius University Library Irena Krivienė as an auditor of COAR.
Bibliotheca Baltica 
Bibliotheca Baltica is an association of libraries from the Baltic region which promotes outreach activities and visibility of cultural heritage in the Baltic sea region. Founded in 1992, the association holds annual conferences thus encouraging cooperation of the libraries from the Baltic region.
Association of European Research Libraries (LIBER) 
Founded in 1971 with the support of the European Council, the association is aiming to represent European libraries on a global scale. Since the foundation, the range of activities undertaken by LIBER has increased – the association not only represents and unites European libraries, but also takes an active part in carrying out the European Union’s projects as well as drafting the laws that address copyright and open access issues. Director of Scholarly Communication and Technology Department of Vilnius University Library Dr Žibutė Petrauskienė is a member of LIBER’s Scholarly Infrastructures Working Group.
The Consortium of European Research Libraries (CERL) 
Established back in 1992, the consortium aims at providing opportunities to European libraries to share information resources and knowledge so that the printed heritage of Europe would be widely accessible, usable and protected. In 2014 Vilnius University renewed its membership in the consortium.
The Consortium of the Lithuanian Academic Electronic Library (eLABa) 
The consortium of eLABa carries out activities under the Lithuanian Research and Study Informational Infrastructure Development programme for the years 2013–2016, approved by the order of the Minister of Education and Science of the Republic of Lithuania in 12 December 2012, related to the maintenance and development of eLABa information system. Vilnius University is a member of the consortium since its foundation on 26 March 2010. Between 2010 and 2015, when appointed as the administering institution, Vilnius University Library was responsible for the implementation of the consortium’s activities.
Lithuanian Research Library Consortium (LRLC) 
Lithuanian Research Library Consortium is a voluntary association of Lithuanian research libraries and institutions with research libraries, which has been established under agreement among the research libraries of Lithuania. Vilnius University is one of the founding members of the consortium. Since 2008, Director General of Vilnius University Library Irena Krivienė is a member of the council of Lithuanian Research Library Consortium.