JASPERS partners have a long record of successful cooperation in financing projects in Central and Eastern Europe. JASPERS represents a further development of this long-standing partnership.

The European Commission DG Regio aims to strengthen economic and social cohesion by reducing disparities between the levels of development of EU regions and countries. DG Regio manages three major Funds: the European Regional Development Fund (ERDF), concentrated in the regions with lowest GDP/head; the Cohesion Fund, which co-finances transport and environment projects in Member States whose GNP is less than 90% of the Community average; and the Instrument for Structural Policies for Pre-Accession (ISPA), supporting candidate countries. JASPERS operates in the framework of ERDF and the Cohesion Fund  

The European Investment Bank (EIB), established in 1958 and owned by the EU's Member   States, furthers the objectives of the European Union by making long-term finance available for sound investment, borrowing on the capital markets to finances those projects.  JASPERS is managed by the EIB from its Luxembourg headquarters and from the regional offices located in Bucharest, Sofia, Vienna and Warsaw 

The European Bank for Reconstruction and Development (EBRD), established in 1991 and owned by 61 countries plus the EIB and the European Union, supports projects in 30 countries from central Europe to central Asia. Investing primarily in private sector clients whose needs cannot be fully met by the market, the EBRD promotes entrepreneurship and fosters transition towards open and democratic market economies

KfW Bankengruppe is a promotional bank established in 1948 and owned by the German federal government (80%) and the federal States (20%). KfW supports a broad range of investment projects worldwide among others in the areas of transport, environment, energy and infrastructure. To fund these projects, every year KfW raises about EUR 60-70 billion in the international capital markets.