Sign up pages with different logos and different community names.

We have an opportunity to bring possibly 100,000 people into a heartbeat community by combining multiple different associations. Each association would like to share some aspects of the same space whilst having a private space within the community. The private space can be created but sign up pages show the community name and logo. In order to help maintain trust and allow each association to maintain brand integrity they are looking for each sign up page to have their logo and association name. This is a massive opportunity.