Denodo

According to its own information, Denodo is the leading provider of data virtualization, which offers data access, data management and data provisioning across a wide range of enterprise, cloud, big data, and unstructured data sources, without moving the data from their original locations. The Denodo platform also provides real-time access to integrated data across an enterprise's various data sources, without replicating data. Denodo is available in a 30-day trial version. Further pricing information can be obtained from the provider's website.