IDG Ventures, a participant in Everstring's series A round last year, is among the investors in a round that took its funding to almost $79m since 2012.

US-based big data marketing platform Everstring raised $65m yesterday in a series B round featuring IDG Ventures, a venture capital affiliate of media and technology research company International Data Group.

Venture capital firm Lightspeed Venture Partners led the round, while Sequoia Capital and Lakestar also contributed capital.

Founded in 2012, Everstring uses big data analytics to identify a client’s audience and crawl the web for potential business-to-business customers. The technology also ranks each prospect, enabling marketing staff to prioritise their…