Yext has been around since 2006. They help organizations collect and organize content into a Knowledge Graph, and leverage their Listings, Pages, Reviews, and Search tools to deliver answers to the end user. As far as Schema Markup solutions go, its Pages tool features an SEO optimization functionality that enables users to add Schema Markup (aka Structured Data) to their sites. While Yext does allow users to add Schema Markup to their pages, Schema Markup isn’t the main focus of its solutions.