Google/AdMob Deal = 24% Market Share

When Google announced its proposed $750 million acquisition of AdMob earlier this month, there was little question that the deal would create a powerhouse in mobile display advertising. But exactly how strong a position the combined companies would have was more difficult to quantify.

Now, a new analysis estimates that Google and AdMob together would account for nearly a quarter of the total ad revenue generated by the top U.S. mobile ad networks. Based on their combined 2009 mobile ad revenue of $68 million, market research firm IDC estimates the two companies would have a 24% market share.

The next-biggest player would be Millennial Media, with $51 million in mobile ad revenue, or an 18% market share, followed by Yahoo, at $32 million (11%); Microsoft, at $23 million (8%); Quattro Wireless, at $21 million (7%); JumpTap, at $11 million (4%); and AOL, at $7 million (2%). All others combined would make up the remaining 26%.
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