Open Collective is a company incorporated based on Delaware State law, to provide financial services to commons projects. The projects are enabled to use OC and its charity OC Foundation if they need a legal entitity for fund raising and contracting.
OO says it is there to support the commons. I wonder what this really means: the fees charged by Open Collective are not transparent.
Also, I have understood from others that Delaware law to incorporate companies obliges these companies to only serve shareholder interests, not stakeholder interests such as commons. The Commons obviously are a source of income for commercial ventures.