OICC Press
OICC Press, an independent open-access publisher, initially ran its journals on a bespoke WordPress multi-site architecture, but the platform's limitations for rigorous academic peer review became apparent as the portfolio grew. In 2022 it migrated its entire portfolio to OJS, with technical partners customising the OJS theme to match the old branding and building open-source plugins; the migration involved page-scraping and XML generation to port historical articles and metadata. A UK example of an OA publisher moving off a general web CMS to purpose-built open-source journal software.