Media conglomerates Time Warner and Cox have contributed to a series C round raised by Dynamic Signal, which brings its overall funding to more than $33m.

US-based marketing software producer Dynamic Signal closed a $12m series C round on Monday, which featured the corporate venturing unit of media company Time Warner.

The funding will partly be used to acquire PaperShare, the developer of a platform that combines content marketing activity to generate leads and sales. Financial terms of the acquisiiotn have not been disclosed.

Media conglomerate Cox Enterprises, and venture capital firms Rembrandt Venture Partners, which led the round, Venrock and Trinity Ventures invested alongside Time…