A core concept of Platform Cooperatives [ http://platformcoop.net/ ] isn't new— the idea that a cooperative enterprise maybe should not be entirely owned and controlled by only workers or only consumers. This kind of cooperative has been called hybrid, solidarity, or multi-stakeholder:
Agaric makes powerful web sites for people who do things. As a collective of skilled workers, Agaric collaborates with you and open source free software communities to develop tools and build platforms that meet your needs.
How we can help you? Please ask Agaric!