Previous investors Norwest Venture Partners, Trident Capital, Shasta Ventures and Focus Ventures resubscribed for the current round. They were joined by newbies ClearBridge Investments, Firsthand Technology Value Fund, Northport Investments and Pine River Capital Management.
Turn says its platform now processes around 1.3 million bids per second against display, video, mobile, and social media impressions. This places significant demand on its infrastructure, and the company responded in 2013 with an 8x increase in capacity.
The company has gone international in a big way, with 20 offices and big hires from the ranks of enterprise software companies, such as that of former Lyris CEO Wolfgang Maasberg to run global sales last June.