PKP’s activities would not be possible without the continued support from all of our sustainers, who share our commitment to the development and support of alternative models of scholarly publishing. To find out how you or your institution can support PKP, visit our Financial Support page. For more information on what is included with the different support levels, visit our Sustaining PKP page.

PKP is also one of three vetted services (along with the Directory of Open Access Books (DOAB)/Open Access Publishing in European Networks (OAPEN) and OpenCitations) selected as part of the Global Sustainability Coalition for Open Science Services’ (SCOSS) second funding cycle. To make a pledge, please contact

Thank you to the following organizations for their 2019-2020 sustainer contributions.


Platinum Level ($15,000)

Gold Level ($10,000)

Silver Level ($5,000)

Bronze Level ($2,500)

Supporters ($1000 – $2499)