• by Gavin O'Malley  @mp_gavin, May 18, 2009

Digital media-verification company DoubleVerify has closed a $3.5 million Series A financing found led by Blumberg Capital, with participation from First Round Capital, Genacast Ventures and private investors.

The company is also announcing the launch of its real-time verification solution for online ad transactions. By tracking the delivery of clients' advertising campaigns, DoubleVerify aims to help agencies, marketers, publishers and ad networks increase ad accountability and transparency.

This theoretically allows marketers and their agencies to identify and remove budget waste from their campaigns, safeguard the reputation of their brands online, uphold regulatory compliance requirements, and verify that they fully capitalized on their marketing opportunities.

"Marketers and their agencies have been flying blind for too long," Oren Netzer, co-founder and CEO of DoubleVerify. "Now that digital marketing has become an important part of the marketing strategy and significant resources are being devoted to it, marketers need to know that they are getting what they paid for."

Presently, DoubleVerify is being tested or used by roughly two dozen Fortune 500 marketers in various industries such as telecom, financial, entertainment, pharma, tech and travel.