One by AOL was founded as Millennial Media in May 2006 by Paul Palmieri and Chris Brandenburg.[1][2] The company received $64.8M in funding between 2007 and 2011 from venture capitalists,[3][4][5] and went on to acquire several companies, including TapMetrics in 2010,[6] Condaptive in 2011,[7]Jumptap in 2013,[8] and Nexage in 2014.
In January 2012, Millennial Media filed with the SEC for an initial public offering of its common stock,[9] and the company was first listed in March 2012.[9]
On January 27, 2014, Palmieri stepped down from his position and was replaced by Michael Barrett.[10]
On September 3, 2015, AOL agreed to buy Millennial Media for US$238 million.[11] On October 23, 2015, AOL completed the acquisition, and changed the name to ONE by AOL. [12]
Consolidation
On September 10, 2018, AOL's parent company Oath consolidated BrightRoll, One by AOL and Yahoo Gemini into a single advertising proposition dubbed Oath Ad Platforms.[13]
