The present disclosure describes methods, systems, and computer program products for establishing business networks based on shared usage of a common platform. One process includes receiving a set of registry data associated with a collaboration system from a first network participant executing a first application based on a first application platform. A request from a second network participant executing a second application on a compatible platform to the first application platform to access the set of registry data from the first network participant is received. Access is provided to the second network participant of a subset of data shared by the first network participant for collaboration. In some instances, providing access to the second network participant can include identifying a user associated with the second network participant to provide data access with the first network participant and assigning corresponding access authorizations to development entity instances associated with the identified user.