New York – AppNexus, the operator of a real-time display
advertising platform, announced on Tuesday that it has closed a $50 million
third round of funding.
Microsoft (NASD: MSFT), a "longstanding" AppNexus client,
participated in the investment round, along with previous backers Venrock,
Kodiak Venture Partners and First Round Capital.
AppNexus provides ad networks,
demand-side platforms and other online ad firms with single-point buying access
to the major real-time ad exchanges.
The three-year-old company, based in New
York, will use the new funds for further product development and global