Mayfield Fund led the round, which included Greycroft Partners and FirstMark Capital and IA Ventures.

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The round is led by FirstMark Capital and joined by Meakem Becker Venture Capital.

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Pinterest "is a marketing platform, " said Lawrence Lenihan, founder and managing director with FirstMark Capital, which invested early in Pinterest.

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OpenGamma, a startup which has so far received two rounds of funding from Accel Partners and FirstMark Capital, is creating a open-source-based platform for trading and risk analytics software to support front office applications.

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