The company said it doubled its revenue last year, surpassing its goal for growth, and plans to use the new capital to support its domestic and international growth.
August Capital’s Eric Carlborg, who has joined the Integral board of directors, said, “The digital advertising industry is constantly evolving and presenting great opportunities for companies that innovate and we are thrilled to invest in Integral at this time.
“The company has become the digital industry’s standard for evaluating media quality for brands and publishers and with its patented technologies, Integral is well positioned for the future.”
August currently has $2bn of funds under management, and was an early investor in businesses such as Microsoft, Skype and Compaq.
The Menlo Park-based firm was founded in 1995, and its seven partners have invested in more than 80 companies representing a market capitalisation of more than $250bn.
The latest funding came just four months after the company closed its Series A round, and brought its total debt and equity raised to more than $54m.
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