@zkat @ZaneSelvans I think it's
Open Collective - the company that runs/builds the platform
Open Collective Foundation - the 501(c)(3) that was acting as a fiscal host on that platform for many smaller projects that aren't necessarily incorporated themselves
Fiscal hosts - provide legal / financial services to OS projects, that don't have to incorporate themselves, helps them get off the ground
(Hope this is helpful and not a terrible Mastodon reply, apols if so.)