The Global Sustainability Coalition for Open Science Services (SCOSS)
SCOSS is a consortium of organisations, founded in 2017, whose mission is to secure OA and open infrastructure financially by providing funding to non-commercial services on which open access and open science depend.
So far, it has provided c. $6.5m to fund over 15 infrastructures, among them (and at first) DOAJ and SHERPA/RoMEO, and more recently DOAB, ROR, arxiv, AJOL and others. Many of the SCOSS members are library consortia or individual libraries.