As enterprise architects look at how to deliver a trusted, real-time, integrated, and secure data platform to support applications, they look at data virtualization. In the three years since Forrester's last evaluation, data virtualization vendors have improved their security, scalability, big data, data discovery, data quality, and cloud capabilities. Forrester has evaluated nine vendors — Cisco Systems, Denodo Technologies, IBM, Informatica, Microsoft, Oracle, Red Hat, SAP, and SAS Institute — on 60 criteria for current offering, strategy, and market presence. This report details our findings on how well each solution fulfills the criteria and where it stands in relation to other vendors. Enterprise architecture (EA) professionals can customize the requirements to re-rank the vendors according to their specific business technology needs.