Since October 2015, more than 320,000 reviews across more than 350 markets have been posted to Gartner Peer Insights. The “Voice of the Customer” is a document that synthesizes Gartner Peer Insights’ reviews into insights for IT decision-makers. This aggregated peer perspective, along with the individual detailed reviews, is complementary to Gartner expert research and can play a key role in your buying process, as it focuses on direct peer experiences of implementing and operating a solution. In this document, only vendors with 10 or more eligible published reviews during the specified one-year submission period are included, and these vendors are categorized into four quadrants based on Review Coverage (x-axis) and Overall Market Rating (y-axis). Reviews from end users of companies with less than $50M in revenue are excluded from this methodology.