Heterogeneous cloud controllers are employed to communicatively couple a plurality of service providers to a publisher-subscriber queue. The heterogeneous cloud controllers may provide a unified communication framework for clients to communicate with the service providers, as well as for the service providers to communicate with one another. A global language may be established by the heterogeneous cloud controller, and a mapping may be created between the global language and the local language of each of the service providers. Each of the heterogeneous cloud controllers may form a bridge between the global language employed at the publisher-subscriber queue and the local language employed at a corresponding service provider.