Millennial Media provided advertisers with programmatic access to premium mobile inventory while offering publishers monetization solutions for their mobile apps and websites.
Last updated Mar 8, 2026 by AI Enrichment
Was one of the top three independent mobile ad networks in the US before acquisition
Millennial Media was one of the pioneering mobile advertising technology companies that emerged during the smartphone revolution. Founded in 2006, the company built a comprehensive mobile advertising platform that connected advertisers with mobile app publishers and mobile web properties through programmatic buying and selling. At its peak, Millennial Media was one of the largest independent mobile ad networks in the United States, competing directly with Google's AdMob and other major players in the mobile advertising space. The company went public in 2012 (NYSE: MM) but struggled to maintain profitability amid intense competition from larger players like Google and Facebook who dominated mobile advertising. In September 2015, AOL (itself owned by Verizon) acquired Millennial Media for approximately $238 million, significantly below its IPO valuation. Following the acquisition, Millennial Media's technology and assets were integrated into AOL's broader advertising platform, which later became part of Verizon Media (now Yahoo). The Millennial Media brand ceased to exist as a distinct entity, with its mobile advertising capabilities absorbed into Verizon's unified advertising technology stack.
Programmatic mobile advertising platform for buying and selling mobile ad inventory
Real-time bidding exchange for mobile advertising inventory
Software development kit for mobile app publishers to integrate ad serving capabilities