quadrantONE, a joint venture of four major media companies (Tribune Company, Gannett Co., Inc., Hearst Corporation and The New York Times Company) today announced the launch of Q-Exchange, the first private ad exchange focused on premium local audiences.

The exchange, which is powered by technology from Admeld, enables quadrantONE to safely and transparently monetize their inventory through Real Time Bidding (RTB). Admeld introduced the industry’s first private exchange in November 2010 with the launch of The Weather Channel’s ‘Category 5’ platform.

In January 2010, the company collaborated with The IDG TechNetwork on launching TMX, the first private exchange for the technology vertical.

This article originally appeared on MediaBuyerPlanner.com

About quadrantONE

quadrantONE is a joint venture of four major media companies that focuses on premium advertisers seeking high-quality audiences and national reach. Backed by Tribune Company, Gannett Co., Inc., Hearst Corporation and The New York Times Company, quadrantONE offers exclusive ad inventory on premium news and information sites across the nation’s top local markets. For the first time, advertisers can consistently deliver their brand and message on a country-wide scale in context with local relevancy in environments they know and that consumers trust.