DoubleVerify is an online service providers that works towards building a trust based relationship between advertisers and content providers. DoubleVerify provides tool to monitor inappropriate content, geo targetting, competitive separation, ad placement, fraud detection and Online Behavioral Advertising compliance. For publishers it provides services that ensure advertisers the maximum value of their buck as well as ensuring that with this trust publishers can make the most out of their valued inventory.
Numerous phone calls and emails, with not one single return email or phone call. I suggest you do not give this company a penny.