Home News Releases Xceligent Sues CoStar for Antitrust Violations News Releases Xceligent Sues CoStar for Antitrust Violations June 29, 2017 Facebook Twitter WhatsApp Linkedin ReddIt Email Cites Monopolistic Behavior and Anticompetitive Practices KANSAS CITY, Mo., June 28, 2017 — XcThank you for your interest in The Registry. You must Subscribe or Log In to read the rest of this content.