This latest round was led by Insight Venture Partners – original investors in both Twitter and Tumblr – with support from existing investors including Scale Venture Partners, Upfront Ventures, IA Ventures, Northgate Capital, Daher Capital and Cendana Capital.

DataSift aggregates and filters data from a variety of social platforms, including Facebook, Twitter, YouTube and, most recently, Tumblr. In February last year, DataSift became the first of Twitter’s data partners to gain access to the full tweet archive, dating back to January 2010.

After its $6m series A financing round, DataSift raised $7.2m in a follow-up in May 2012, and $15m in a series B round in November of the same year.

CEO Rob Bailey said: “Social is generating billions of conversations every day and that data is fundamentally transforming the way companies communicate and make strategic decisions. Social has now moved from mainstream to mission critical for enterprises and we are excited to power the applications in the social ecosystem and accelerate social data adoption.”

DataSift clients include Bloomberg, Dow Jones, CBS Interactive and Dell and social technology application innovators Marketwired, Dachis Group, Conversocial, HootSuite and Simply Measured.