Publishers with at least 100 journals that published at least 10 papers in 2025. Imprints are merged under their parent company, as OpenAlex records it, so BMC and Nature Portfolio sit under Springer Nature.
As of 2 October 2026. From OpenAlex, Crossref and DOAJ. ORBIT Tier is our own ranking within a field, not a Scopus or Web of Science quartile.