The New York Ad-Tech Company That’s Growing at 150 Percent

Mr. O'Kelley. (Businessweek)

Earlier today we told you about Moat, an advertising analytics/magic startup that will measure consumer response to an ad. Moat comes from some of the team behind Right Media, the advertising marketplace aquired by Yahoo in 2007 for more thanĀ $680 million. But what happened to Right Media founder Brian O’Kelley?

Mr. O’Kelley is the founder and CEO of AppNexus, a real-time exchange where ad network and publishers can bid on display spots in auctions that take place in the quarter of a second that it takes a page to load.

AppNexus’s went from two employees to 230 in about four-and-a-half years, Mr. O’Kelley told Businessweek in a video interview today. The company opened an office in London last year, an office in San Francisco two weeks ago, and is opening a Paris office next week. AppNexus hosts about 250,000 auctions a second, Mr. O’Kelley said. Read More