Universities, research institutes, scientific organizations of the Polish Academy of Sciences that implemented at least three projects including internationalization activities for last three years may apply for the Academic International Partnerships program.
The National Academic Exchange Agency informs that research and development centers will be able to obtain funding for initiatives of international institutional cooperation in the area of research, implementation or education. Project partners must be at least 3 universities or scientific organizations located and registered abroad, which are not financed from Polish budget funds but signed a letter of intent with the Applicant.
More:
https://nawa.gov.pl/instytucje/partnerstwa-akademickie