Since June 2020 there is a National repository for open access to scientific information. It is a cross-disciplinary repository administrated by NACID for scientific publications that are result from publicly funded research.

Bulgarian institutional repositories (all integrated with BPOS):

- Repository at IMI-BAS - http://sci-gems.math.bas.bg

- Research at Sofia University “St. Kliment Ohridski”- http://research.uni-sofia.bg

- Electronic Repository of Central Medical Library – Medical university Sofia http://cml.mu-sofia.bg:8080/jspui/handle/10861/1

- Medical Academic Repository of MU-Varna - https://repository.mu-varna.bg/

- New Bulgarian University NBU Scholar Electronic Repository - http://eprints.nbu.bg

- Academic Research Repository at the Burgas Free University http://research.bfu.bg:8080/jspui/